[today’s recommendation]

Sudden! Krypton intends to withdraw from the US stock market.

On May 7, Geely Automobile Holdings Co., Ltd. announced that it plans to acquire all the issued shares of Extreme Krypton Intelligent Technology Co., Ltd. Geely Automobile currently holds about 65.7% of the shares of Extreme Krypton. If the transaction is completed, Extreme Krypton will be completely merged with Geely Automobile, privatized and delisted on the New York Stock Exchange. In this regard, Geely Holding Group responded that this move is an important step to further implement the Taizhou Declaration, focus on the main automobile industry, improve resource utilization efficiency and deepen brand synergy.

Lenovo Yang Yuanqing responded to whether the product price increased.

At Lenovo TechWorld on May 7th, Yang Yuanqing, chairman of Lenovo Group, was asked if Lenovo’s products would increase in price as a global company. Yang Yuanqing said that there is definitely no absolute answer, and the supply and demand of parts is a very important consideration. Everyone is concerned that the impact of tariffs will be reflected in product pricing. If there is no further policy change, the impact on prices may not be great. But the future is very uncertain.

NVIDIA said that China’s $50 billion market should not be missed.

On May 6th, local time, NVIDIA CEO Huang Renxun attended the Knowledge conference of the global technology summit of ServiceNow in Las Vegas, USA. On the same day, NVIDIA and ServiceNow jointly launched a new service for enterprise AI agent. Huang Renxun talked about the potential of artificial intelligence and NVIDIA’s latest reasoning model, and once again stressed that China is an important market for artificial intelligence. "China is a very large market for artificial intelligence, and the market scale in the next two or three years may reach 50 billion US dollars. As an American company, it will be a huge loss if it cannot provide services for the China market. " He also said that regardless of the policy, enterprises should remain flexible.

Internet

Taobao and Xiaohongshu reached strategic cooperation.

On the eve of 618, the traffic of Taobao Tmall and Xiaohongshu was further opened. On May 7, Taobao Tmall signed a strategic cooperation with Xiaohongshu to create the "Red Cat Plan", announcing that the two sides will further open up integration and open up the whole link from planting grass to purchasing. From the specific cooperation content, the two sides mainly reached a strategic cooperation on brand merchants planting grass, and jointly established a tripartite account. Brand merchants can observe the full link effect from planting grass to placing orders through Taobao platform, and improve the delivery efficiency. Taobao Tmall will also increase investment, heating and pouring notes for merchants planting grass. At the same time, Xiaohongshu and Taobao will jointly add the function of "advertising hanging chain" below the notes. Brands that joined the pilot in the early stage can realize the direct drainage of content delivery to Taobao Tmall stores. At the same time, Taobao brand merchants can also be placed directly in Xiaohongshu.

JD.COM 618 will be officially opened on May 31st.

JD.COM announced on May 7th that it will officially open JD.COM 618 at 8 pm on May 31st. Prior to this, the heartbeat shopping season will be the first to open at 8 pm on May 13th.

TEMUFull hosting mode in the US has been stopped.

At the end of April, TEMU stopped the full custody mode in the United States, and the goods in TEMU were marked with the labels of local warehouse, "no import fee" and "no delivery surcharge". (Cailian)

TikTokAnnounced a new data center project in Finland with an investment of 1 billion euros.

TikTok announced the new data center project in Finland on May 6th local time, which is an important step in the field of data security in Europe. With an investment of 1 billion euros, local developer HyperCo Oy will build a new data center in Kouvola, Finland. TikTok said that the new data center is the core part of the four-leaf clover project, which plans to invest 12 billion euros to provide data protection for 175 million Europeans. (Interface News)

Zuckerberg’s apple and NVIDIA.

At the Stripe 2025 annual conference held on May 6, local time, the biggest concern was that Mark Zuckerberg, CEO of Meta, made no secret of his hostility to Apple in public, and generously indicated that his management philosophy was quite different from Huang Renxun, the founder of NVIDIA. In a conversation with Stripe CEO and co-founder John keirrison, Zuckerberg publicly commented on Apple and its App Store policy. Although Zuckerberg tried to show a restrained attitude, his words still revealed gloating over Apple’s recent difficulties.

[technology circle]

Huawei Recruitment: We have not conducted any form of internship cooperation with any third party.

On May 7th, Huawei Recruitment issued a document saying that some intermediaries have recently sold Huawei’s "internal internship", "internship recommendation letter" and "remote internship" on the Internet, and some students have been deceived. I would like to remind you that Huawei has no internship methods such as "internal internship" and "remote internship", and has never carried out any form of internship cooperation with any third party (intermediary or individual).

Tencent Yuanbao announced the function upgrade of Wensheng Map.

On May 7, Tencent Yuanbao announced that the function of Wensheng Map has been upgraded, and both Mixed Element and DeepSeek can generate maps. This function is combined with the latest Wensheng diagram model of Tencent, and has been launched at the whole end of Yuanbao.

Volcano Engine released database intelligent assistant DBCopilot

On May 7th, Volcano Engine officially released the first database intelligent assistant in China — — DBCopilot, which has been online in the DBW console of Volcano Engine database workbench.

Google releases Gemini 2.5 Pro "I/O" model.

On May 6th, local time, Google DeepMind artificial intelligence research team released Gemini 2.5 Pro "I/O", which is an upgraded version of the multimodal language model Gemini 2.5pro released in March this year. On the AI ranking list LMArena, the model reached the top on several indicators. At present, the model has been opened to independent developers of Google AI Studio, enterprise users of Vertex AI cloud platform and ordinary users of Gemini applications.

The Federal Aviation Administration allows SpaceX to launch starships 25 times a year in Texas.

On May 6, local time, the Federal Aviation Administration (FAA) released the final environmental assessment of SpaceX’s proposal to increase the number of launches of starships/super heavy orbits in Boca Chica, Texas, allowing the number of launches to increase from 5 to 25 per year.

Foreign media: OpenAI plans to expand the Stargate project to areas outside the United States.

According to foreign media reports, OpenAI plans to expand the Stargate project to areas outside the United States.

[Car ring]

Changan Automobile rumor merged into Dongfeng Group: relevant parties will be held accountable.

WeChat official account, the "Changan Automobile False Information Reporting Center", issued a document saying that during May 5th to May 6th, Changan Automobile discovered a group of organized dissemination of false information from media accounts, slandering China automobile brands and maliciously slandering the relationship between Changan Automobile and other automobile brands. Changan Automobile officially listed the list of relevant self-media accounts, and said that Changan Automobile has taken legal measures to safeguard the legitimate rights and interests of enterprises for the subjects/individuals who spread false information such as "Changan Automobile has been merged into Dongfeng Group as a secondary enterprise".

Zhiji Automobile: The pre-sale order of the new Zhiji L6 reached 24,000 units.

On May 7th, Zhiji Automobile announced that the pre-sale order of the new Zhiji L6 reached 24,000 units. It is understood that the new Zhiji L6 was released on April 18th, with three major configuration versions, and the price range of pre-sale rights and interests is 219,900 yuan-289,900 yuan, and will be officially listed and delivered on May 13th.

LI responded to Li Xiang’s annual salary of 639 million: the actual salary was 2.66 million.

On May 7, LI said: "‘ Li Xiang’s annual salary is 639 million ’ This statement is not accurate. " According to LI, Li Xiang’s total actual salary in 2024 is 2.66 million yuan. At present, the annual sales volume of 500,000 vehicles disclosed corresponds to 18 million shares, which is about 639 million yuan, which belongs to the expenses that the company must keep accounts according to American accounting standards, and is not the actual salary income of Li Xiang. (Red Star Capital Bureau)

Xpeng Motors applied for Iron Man trademark.

Aiqicha App shows that recently, Guangdong Xpeng Motors Science and Technology Group Co., Ltd. applied to register an "Iron Man" trademark, which is internationally classified as a scientific instrument, and the current trademark status is awaiting substantive examination. According to reports, He Xiaopeng, chairman of Xpeng Motors, appeared at the Shanghai Auto Show with the humanoid robot IRON. He Xiaopeng introduced that humanoid robots in Tucki have entered the stage of factory training, with the goal of realizing large-scale industrial mass production in 2026. He expected that robots in Tucki could work with humans in the factory environment in the future to improve work efficiency.

Tucki Huitian responded to "listing in Hong Kong or the United States": At present, the company has no specific information to publish.

On May 7th, it was reported that Xpeng Motors was considering the initial public offering of its flying car subsidiary, Tucki Huitian, and Xpeng Motors had invited a number of banks to bid for a role in the IPO of Tucki Huitian, which may be held in Hong Kong or the United States. In this regard, Tucki Huitian responded that at present, the company has no specific information to publish. (Cailian)

SAIC Volkswagen sold nearly 83,000 vehicles in April, up 5.9% year-on-year.

According to SAIC Volkswagen, in April, SAIC Volkswagen sold nearly 83,000 vehicles, up 5.9% year-on-year, including nearly 14,000 vehicles sold by Tiguan family terminals and nearly 18,000 vehicles sold by Passat family terminals.

The BMW Group’s total revenue in the first quarter was 33.758 billion euros and its net profit was 2.173 billion euros.

On May 7, the BMW Group released a financial report showing that the global delivery volume in the first quarter of 2025 was 586,117 vehicles, down 1.4% year-on-year; The total revenue was 33.758 billion euros, a year-on-year decrease of 7.8%; The net profit was 2.173 billion euros, a year-on-year decrease of 26.4%; The profit margin before interest and tax of automobile business was 6.9%, compared with 8.8% in the same period of last year.

Tesla launched a long-life rear-wheel drive Model Y in the United States, priced at $44,990.

Tesla official website shows that Tesla has launched a long-life rear-wheel drive version of Model Y in the United States, which costs $44,990.

Ferrari’s net revenue in the first quarter was 1.791 billion euros, a year-on-year increase of 13.0%.

Ferrari announced its first-quarter results on May 6th, local time. Its net revenue in the first quarter was 1.791 billion euros, up 13.0% year-on-year, and its total shipments were 3,593 units. The net profit in the first quarter was 412 million euros, and EBITDA was 693 million euros.

[Big consumption]

JD.COM Pangdonglai joined forces.

Recently, Fat Donglai Trading Group and Jingdong Logistics Group jointly built the first Henan supply chain industrial base — — Jingdong Logistics (Xuchang) supply chain industrial base project will be fully put into operation in June this year. The person in charge of the project said that after the project is put into production, the annual output value will be about 2.5 billion yuan, and the profit and tax will be 50 million yuan. Aiqicha App shows that Jingdong Logistics Supply Chain Co., Ltd. was established in June 2020, with Hu Wei as its legal representative and a registered capital of 10 billion yuan. In addition, information related to intellectual property rights shows that in January 2021, an industrial company in Henan applied to register a trademark of "Fat JD.COM", which is classified as catering and accommodation internationally, and the trademark is invalid at present.

Founder of Box Horse Re-started: Pat Xiansheng completed $25 million angel round financing.

Pat Xiansheng, a new retail brand of pet food, announced the completion of $25 million angel round financing on May 7, setting a new high for angel round financing in the pet industry in recent years. The funds will be used for the innovation of big data customized products, the construction of supply chain system and the refined operation and expansion of stores to meet the diversified requirements of pet owners and promote the development of the industry in a direction more in line with pet consumption characteristics. It is reported that Hou Yi, the founder of Pat Xiansheng, is also the founder of Boxma Xiansheng.

Kweichow Moutai: In April, the company repurchased 934,800 shares and paid 1.44 billion yuan.

Kweichow Moutai announced in the evening that in April, 2025, the company repurchased 934,800 shares, accounting for 0.0744% of the company’s total share capital. The highest purchase price was 1,575 yuan/share, the lowest price was 1,468.01 yuan/share, and the amount paid was 1.44 billion yuan. By the end of April, 2025, the company had repurchased 2,017,500 shares, accounting for 0.16% of the company’s total share capital. The highest price purchased was 1,584.06 yuan/share, and the lowest price was 1,417.01 yuan/share, and the total amount paid was 3,039 million yuan (excluding transaction costs).

Maotai’s first spokesperson rumors failed, and it was Maotai Wenlv who signed LAY.
On the morning of May 7th, rumors about LAY, the first spokesman of Maotai, rushed to the hot search, which also triggered a hot discussion in the market, but they were not confirmed by Maotai officials. On the evening of the same day, the official of Maotai Wenlv Company announced the signing of LAY as the image spokesperson. According to reports, Maotai has never hired a spokesperson in history, so this news has attracted much attention from the outside world. According to the information released by Maotai Wenlv, LAY will attend May 17th — Music event held in Guiyang on 18th, but did not disclose the specific details of cooperation.

fiveOn July 7th, the wholesale reference price of Feitian Maotai generally fell.

According to the latest wholesale reference price disclosed today, on May 7th, the prices of original cases of Feitian Maotai in 24 years, original cases/loose bottles of Feitian Maotai in 23 years and original cases/loose bottles of Feitian Maotai in 22 years all fell, ranging from 15 yuan to 45 yuan, with the original cases of Feitian Maotai in 23 years falling the most, dropping 45 yuan to 2235 yuan/bottle.

Tsingtao Brewery: It is planned to acquire 100% equity of Jimo Yellow Rice Wine.

Tsingtao Brewery announced in the evening that the Company had signed the Equity Transfer Agreement with Xinhuajin Group, Lujin Group and Shandong Jimo Yellow Rice Wine Factory Co., Ltd. ("Jimo Yellow Rice Wine"), and the Company planned to take over 100% equity of Jimo Yellow Rice Wine held by Xinhuajin Group and Lujin Group, with the relevant consideration of 665 million yuan and the sum of the profit and loss during the price adjustment period. Jimo yellow rice wine belongs to the fermented wine industry with our company. With the addition of Jimo yellow rice wine, it will further enrich our product line, broaden market channels and provide more diversified choices for consumers.

Domestic multi-brand gold jewelry prices continue to rise.

On May 7th, the price of gold jewelry in many domestic gold shops continued to rise, and the price of gold jewelry in brands such as Chow Tai Fook was raised by 7 yuan/gram to 1033 yuan/gram compared with yesterday.

Shanghai legoland opened on July 5 this year.

Merlin Entertainment Group officially announced on May 7 that legoland, the largest park in the world — — Legoland Resort will open on July 5, 2025 to welcome guests. "Limited Commemorative Year Card for Opening the Park (including tickets for trial operation)" and "Limited Hotel Package for Opening the Park (including tickets for trial operation)" were officially launched on the official WeChat applet of legoland Resort today (May 7), and the above products were launched for members yesterday. Legoland Resort has eight major theme areas, over 75 interactive riding facilities, performance and fun attractions, and thousands of Lego models made up of over 85 million Lego bricks.

Aviation industry

The first overseas user of domestic aircraft flies to Shanghai.

At 14:25 Beijing time on May 7th, a domestic C909 plane departed from SamRatulangi International Airport in Manado, Indonesia, and will arrive at Shanghai Pudong International Airport at about 20: 55 that evening. This is the first Minato-Shanghai flight opened by TransNusa, which further extends the commercial operation network of domestic aircraft in the international market.

Foreign media: If the trade negotiations with the United States fail, the EU will propose to impose tariffs on Boeing.

According to foreign media reports, if the trade negotiations with the United States fail, the EU will propose to impose tariffs on Boeing.

[financial circle]

AIC license ushered in the expansion period, and Industrial Bank won the first order of the stock bank.

On the evening of May 7, Industrial Bank announced that it had received the Reply of the State Financial Supervision and Administration on the Establishment of Xingyin Financial Assets Investment Co., Ltd. (Jin Fu [2025] No.284). According to the reply, Industrial Bank was approved to build Xingyin Financial Assets Investment Co., Ltd.. After the preparatory work is completed, Industrial Bank will apply to the State Financial Supervision and Administration for opening in accordance with relevant regulations and procedures.

Shanghai Pudong Development Bank: Liu Yiyan, the company’s vice president and chief risk officer, resigned due to his age.

Shanghai Pudong Development Bank announced in the evening that due to his age, Liu Yiyan resigned as the company’s vice president and chief risk officer. According to the company’s articles of association, the resignation shall take effect as of the date it is delivered to the company’s board of directors.

E Fund reduces management fees of two funds.

On May 7, E Fund announced that the management fees of E Fund’s new comprehensive bond index fund and E Fund’s investment-grade credit bond fund will be lowered from May 12, with the former’s annual management fee reduced from 0.30% to 0.15% and the latter from 0.35% to 0.30%.

Bee Qiao Capital responded to Qing POP MART: When the fund expires, it is still optimistic about the company’s stars and seas

On May 7, Bee Qiao Capital issued a document in its official WeChat official account, saying, "As the first phase of Bee Qiao RMB Fund is about to expire, Bee Qiao Capital has cleared all the POP MART shares bought before listing in three times through block transactions in the past week, and the fund will no longer hold any POP MART shares." This also positively responded to the information that "investors sold POP MART shares through block transactions many times" which was hotly discussed in the capital market in the previous week.

[medical circle]

Upgrade jurisdiction, court session in July! The latest development of Kangmei Pharmaceutical’s case of recovering 340 million yuan.

As a follow-up action of "the first special representative lawsuit" in China capital market, Kangmei Pharmaceutical sued Guangdong Zhengzhong Zhujiang Certified Public Accountants for a 340 million yuan recovery dispute, which ushered in the latest progress. It is reported that the Guangzhou Intermediate People’s Court issued a ruling, in view of the fact that the case is a new type of case, the case is complex and has the guiding significance of legal application, and the Yuexiu District People’s Court of Guangzhou submitted an application for upgrading jurisdiction, so it was decided that the Guangzhou Intermediate People’s Court would be responsible for hearing the case. The case will be heard in July 2025. (Securities Times)

Siemens Medical expects that the tariff will affect the profit of 300 million euros.

On May 7, Siemens Medical announced its performance report, and the company predicted that tariffs would have an impact of up to 300 million euros on Siemens Medical’s operating profit in the second half of 2025.

The new global "drug king" is coming! Smegliptide earned more than K drugs in the first quarter.

In 2024, Novo Nordisk’s smeagoutide (including Ozempic, Wegovy and Rybelsus) ranked behind Merck K with a sales gap of less than $200 million, and missed the throne of the global "drug king". In the first quarter of 2025, the global sales of smeagoutide finally surpassed that of K-drug, and it temporarily took the throne of the global "drug king". According to the relevant data, in the first quarter of 2025, the sales of smeagoutide was 664 million dollars ahead of K drug.

[real estate]

With a capital of 1 billion yuan, Country Garden Property indirectly provides guaranteed delivery loans to real estate groups.

On May 7th, Country Garden Service announced that it had signed loan contracts with two companies, Win Win and Fortune Warrior, and would provide the two companies with revolving loan facilities with a total principal of RMB 1 billion. The loan will be allocated from the internal resources of the Group. The two companies are wholly owned by Yang Huiyan, the non-executive director and major shareholder of Country Garden Services. The loan of 1 billion yuan will be lent by the two companies, Win Win and Fortune Warrior, to the domestic subsidiary of Country Garden Holdings for the related matters of guaranteeing the delivery of the house.

(Editor: Chen Ting)

　　The third episode of the large-scale TV feature film "Pilotage" and the fourth episode of "Development and Change" will be grandly launched on October 9 at 20: 00 on CCTV-1, the Central Radio and Television General Station, and CCTV news, CCTV video and CCTV network will be launched simultaneously.

Episode 3 Pioneer of Dreaming

　　In 1943, in the mountains southwest of Beiping, a young man named Cao Huoxing wrote the well-known song "No communist party, No New China".

　　Simple lyrics and popular melodies sang the voices of the people, the belief that the people firmly follow the party, and the logic of the Chinese nation’s century-old history.

　　"History and people chose the Communist Party of China (CPC). The Communist Party of China (CPC)’s leadership is the most essential feature of Socialism with Chinese characteristics and the greatest advantage of the Socialism with Chinese characteristics system. "

　　Comrade, believe all your life.

　　From more than 50 party member in 1921 to more than 96 million party member by the end of 2021, our team is getting longer and longer, our pace is getting firmer and stronger, our motherland is getting stronger and stronger, and our people are getting happier and happier. All this stems from the Communist Party of China (CPC)’s strong leadership.

　　The key is to maintain the authority of the CPC Central Committee, give full play to the core role of the Party in commanding the overall situation and coordinating all parties, and improve the system.

　　A series of basic, strategic and innovative measures have been launched one after another, which have strengthened the "four consciousnesses", strengthened the "four self-confidences" and achieved the "two safeguards" and become the consensus and action consciousness of the whole party.

　　The party’s leadership is comprehensive, systematic and holistic, which is not only reflected in the functional system of institutions, but also reflected in the hearts of the people.

　　Zhang Ji, a rescued miner at the Hushan gold mine in Qixia, Shandong, said: "It was everyone’s idea to write this note at that time, saying that the party would definitely come to save us and would not give up the lives and safety of the people."

　　Luo Chunyan, a villager in Haohuahong Village, Huishui County, Guizhou Province: "The days of our people are getting more and more prosperous. We thank the party and the government."

　　Xin Wang, the former violinist of Wuhan Philharmonic Orchestra: "I feel that our party is very great. Without communist party, there would be no new China. This song is indeed like this."

The fourth set of development and change

In the new era, the CPC Central Committee with the Supreme Leader as the core has taken the overall situation and grasped the general trend, and put forward a series of new ideas, new ideas and new strategies around China’s economic and social development.

　　On July 1, 2016, General Secretary of the Supreme Leader delivered a speech at the celebration of the 95th anniversary of the founding of the Communist Party of China (CPC):"Accelerate the formation of a mechanism and environment that advocates innovation, pays attention to coordination, advocates green, thick planting and opening up, and promotes sharing, and constantly expands China’s economic strength and comprehensive national strength."

　　Our country’s scientific and technological workers aim at the key core technical fields such as artificial intelligence, quantum information, supercomputing, integrated circuits, life and health, brain science, biological breeding, aerospace science and technology, deep sea and so on, constantly innovating and bravely breaking through, and have made a series of forward-looking and strategic significant achievements.

　　In the past ten years, China’s digital economy has developed rapidly, from 11 trillion yuan to more than 45 trillion yuan, which has effectively guided the demand for computing power in the east to the west, and "calculating from the east to the west" came into being, building a "new base" for the digital economy and becoming a "new highland" for scientific and technological innovation.

　　In the new era, the CPC Central Committee with the Supreme Leader as the core has put forward a series of new strategies to promote coordinated regional development and promote the formation of a regional economic layout with complementary advantages and high-quality development.

　　Nowadays, China has shifted from a simple gradient development strategy from east to west to the development and opening up of things in both directions. Economic belt, urban agglomeration and metropolitan area are opening up the context of regional economic development in China and creating a new pattern of coordinated development in China.

　　Green development is a profound revolution in the concept of development and an inevitable requirement for building a high-quality modern economic system.

　　The change of development concept promotes the innovation of practice, and green is becoming a new fashion for development everywhere.

Opening-up has also brought China’s development into a new world.

　　In 2017, the top leader of president attended the opening ceremony of the "Belt and Road" international cooperation summit forum and delivered a keynote speech:"Unleash the development potential of all countries, achieve great economic integration, develop great linkage and share great achievements."

　　High-quality development is the development in which sharing becomes the fundamental purpose. Development is for and depends on the people, and the fruits of development are shared by the people.

　　Based on the new development stage, implementing the new development concept and building a new development pattern, the people of China are writing a magnificent chapter to promote high-quality development.

　　Changsha Evening News reported on August 20th (all-media reporter Zhou Huixia) On August 20th, the State Administration of Market Supervision issued the "Guidelines for Warning Terms on Health Food Labeling" (hereinafter referred to as the "Guidelines"), which made the warning terms on health food more clear and strict. Including the label that a warning area must be set up, and the area should not be less than 20% of its layout, the shelf life should be described in the way of "the shelf life will last until a certain day of a certain year", and there is obvious color difference between the text in the warning language area and the background of the warning language area, etc., and the warning language should include "health food is not a drug and cannot replace drugs to treat diseases" and so on, in order to make consumers, especially elderly consumers, easily identify and understand consumption. It is reported that the "Guide" will be implemented on January 1 next year.

　　False propaganda and marketing routines of health food infringe on consumers’ rights and interests.

　　In China, foods that have certain health functions and are suitable for specific people are regarded as health foods, and strict management is carried out according to special food management methods. In the supervision of health food, the market supervision department focuses on the strict examination and approval of product production before listing. After listing, it is required to indicate suitable people and unsuitable people on product labels and instructions, stating that "this product cannot replace drugs".

　　With the enhancement of consumers’ awareness of health care, the demand for health food has increased greatly. The market supervision department found that some violations of consumers’ rights and interests occurred in the development of health food market.

　　False propaganda makes consumers unconsciously equate health food with medicine, which is the strongest phenomenon that consumers reflect on health food marketing. When the reporter followed the inspection of the law enforcement personnel of the market supervision department, he found that some merchants boasted that the mattress worth 20,000 yuan was a magic mattress that could cure all diseases, and told the old people who came to experience it: sleeping on such a mattress, the head is not dizzy, the eyes are not flowery, and the legs are not painful. Law enforcement officers found that the purchase price of such a mattress is only one tenth of the selling price, and the hot spot on the mattress is actually infrared.

　　Some health foods are falsely publicized and exaggerated, and are blown into "magic medicine"; Some illegal enterprises, especially those that produce and sell nourishing and aphrodisiac health foods, illegally add sildenafil and other ingredients to harm consumers in order to enhance the efficacy of products.　

　　"My grandmother went to a health care class every three to five times, and received three or five eggs and one or two boxes of noodles every time. After receiving it for a dozen times, she spent more than 4,000 yuan to buy a bunch of selenium-enriched wheat that is said to be able to treat high blood pressure and heart disease. It is moldy at home." Speaking of the temptation of health food marketing to the elderly at home, Huang Ling, who is engaged in market supervision, said that in the marketing process of health food, some consumers bought a bunch of unnecessary ordinary food at a high price.

　　In view of the chaos such as consumer fraud and false propaganda in the marketing process of health food, Hunan Provincial Market Supervision Bureau reminded consumers in this year’s "100 Days" special rectification campaign to be alert to various routines in the marketing process of health food, including: cheating in the name of "prevention", "health care" and "treatment" of traditional Chinese medicine, or under the guise of medical concepts and terms; Free gifts or "health care products" boxes and bills for gifts; Faking the name of public welfare activities to attract consumers to attend lectures on popularizing health knowledge is actually promoting "health care" products; Claiming that products can cure many diseases and lure consumers; Provide family services at home and sell products to the elderly; Selling "health care" products (services) with free travel as the gimmick; The use of health programs (columns), disguised release of medical, pharmaceutical, "health" food advertisements; Through the network, "brushing the letter" makes consumers misunderstand the product sales; Lure consumers to invest, buy, etc. under the guise of high returns from buying company stocks.

　　On January 8 this year, 13 departments including the State Administration of Market Supervision jointly launched a nationwide "100-day" campaign to rectify the chaos in the health care market, and the market supervision department of Hunan Province responded quickly. It is reported that in the "100-day" rectification campaign, Hunan Province filed 646 cases, recovering economic losses of 6.5542 million yuan for consumers, and investigated and dealt with a number of illegal cases with serious circumstances and strong social repercussions, such as false propaganda of Xinqi Health Industry Group Co., Ltd.　

　　The warning words of the new regulations are written on the packaging box for the convenience of consumers.

　　The Guide published by the State Administration of Market Supervision on August 20th, as a new measure to overweight the supervision of health care products market after the "100-day" rectification action, focuses on the supervision of products after listing from three aspects.

　　First of all, it puts forward clear requirements on the warning signs of health food labels.

　　Product label is the carrier for enterprises to express product information to consumers, and it is also the way for consumers to obtain product information directly. Whether the marked content is true, clear and complete directly affects consumers’ judgment and choice. The reporter found that although the health food currently on sale in the market can’t relate to the functions of disease prevention and treatment, it only states that "this product can’t replace drugs", and the position and size of the statement are not specific and often inconspicuous, which is difficult to attract consumers’ attention, and gives the marketing behavior of false propaganda and exaggerated efficacy an opportunity.

　　The "Guide" makes it clear that health food should be provided with an obvious warning area, which is located on the main display page of the smallest package. It is necessary to mark the warning that "health food is not a drug and cannot replace drugs to treat diseases". The warning area should be no less than 20% of its layout, and at the same time, it should be in bold type to make consumers, especially the elderly, see it more clearly.

　　"In the packaging of health food, the shelf life is difficult to find, and some indicate the shelf life of 18 months, 36 months, ‘ See Seal for the production date ’ It is not only difficult to find, but also takes half a day to calculate. " The Guide also has new standard requirements for the problems of "can’t find", "can’t see clearly" and "difficult to calculate" in the way of labeling the shelf life generally reflected by the elderly consumers who buy health food in pharmacies.

　　The Guide makes it clear that the shelf life should be marked in a unified form and described in the way of "shelf life to a certain day of a certain year". In the labeling position of the shelf life, it is required to clearly mark the shelf life and production date on the obvious position of the minimum sales package (container) of the product. If the date is marked with "see a part of the package", the specific position of the package should be accurately marked. In terms of color difference, it is also required that the shelf life label should be in sharp contrast with the background color of the location, so that the shelf life can be seen at a glance and it is convenient for consumers to buy.

　　In addition, the Guide also puts forward detailed requirements for labeling service telephones and business premises with consumer tips.

　　In daily life, consumers often encounter some questions or problems when eating health food, such as whether children can eat it, whether the elderly are suitable to eat it, how to deal with the problems encountered in the process of eating, etc. Who to consult and reflect these questions or problems has always been a headache for consumers. In order to facilitate consumers to get advice in time when they encounter difficult problems, the Guide stipulates that information such as complaint service telephone number and service time should be clearly marked on the label of health food. Production and operation enterprises should answer and handle complaints and reports during the service period, and the relevant information should be kept for at least two years.

　　Influence helps to urge enterprises to implement the main responsibility.

　　Health food is not medicine, and it can’t cure diseases. The market supervision department will standardize from the label identification, which will play a positive guiding role in implementing the main responsibility of enterprises and standardizing the sales behavior of merchants.

　　As a kind of special food, according to the provisions of the Food Safety Law, producers and operators are responsible for the contents of the labels provided by them. The labels of health food should not involve the functions of disease prevention and treatment, and the contents should be true and the labels should be clear and obvious.

　　The Guide further requires that warning language be marked on the label, which shows the self-declaration of the real information of the product, reflects the self-commitment of the enterprise to the main responsibility, and is conducive to strengthening the awareness of honesty and self-discipline in the food industry.

　　In order to remind consumers more intuitively to be rational and understand consumption, and also to restrain and supervise the marketing behavior of merchants, the Guide also stipulates that health food operators should mark consumption tips in prominent positions such as business premises and online platforms. The market supervision department has even studied and formulated a reference template for health food consumption tips, which mainly includes: health food is food, not medicine, and cannot replace medicine to treat diseases; When purchasing health food, we should recognize the approval number and mark, and choose and eat according to the suitable crowd and the unsuitable crowd; Go to regular shopping malls, supermarkets, pharmacies and other business units to buy; In case of violation of laws and regulations, you can report to the local market supervision department or call 12315 to report complaints.

　　In recent years, the "chaos" in the health food market has become a major problem. Many consumers have a weak ability to distinguish health food, while some unscrupulous merchants exaggerate their propaganda by taking advantage of "emptiness", which makes many consumers suffer greatly. According to the relevant person in charge of health care industry Association, it is an important embodiment to protect consumers’ right to know by labeling warning words in a conspicuous position, so that consumers can enjoy the right to know the real information of the goods they buy and use, which is conducive to the formation of a long-term mechanism to resist false propaganda and prevent consumer fraud.

　　Maintain the healthy ecology of health care products market

　　Xiao Yinglin

　　Since ancient times, health and longevity have been one of people’s wishes for a better life. Young people’s greetings and blessings to the elderly are the most sincere and most listened to words: "I wish you happiness as the East China Sea lives longer than the South Mountain". Nowadays, the life of ordinary people is getting more and more comfortable, and health care is an ordinary topic for people. The elderly turn the blessings of their younger generations into their own actions. For example, listen to the wind and buy all kinds of health care products, or even buy them inexplicably.

　　As everyone knows, in the market, there are inevitably bad businesses that make money. Faced with the huge market demand, they either illegally launch products, or make false propaganda and confuse them, or make a big fuss about packaging … … Especially for some elderly people, it can be said that it is omnipotent. In recent years, the problem of merchants deceiving the elderly to buy products for profiteering by false propaganda has emerged one after another.

　　With more and more elderly people in China and the development of the national strategy of "Healthy China", the market for health care products is growing. In a sense, this industry is growing into a "giant". However, some health care products with serious circumstances and strong social repercussions in cheat people have made the "giant" move forward with illness, which is unacceptable. Everyone knows that cancer growth factor appears in the body, so it must be eliminated as soon as possible by medication and even surgery, which can make the body healthy and strong.

　　Now, the State Administration of Market Supervision has published the "Guidelines for Warning Terms of Health Food Labeling", which focuses on the supervision of products after listing from three aspects. It is believed that with the overweight of supervision, through the efforts of all parties, counterfeiting will be eliminated and the healthy ecology of the health care product market will be maintained.

　　BEIJING, Beijing, June 20 (Xinhua) In recent days, many places in the north have once again ushered in the "sunny mode". With the expansion of the sphere of influence of high temperature weather, from today, there will be high temperature weather lasting for many days in Huanghuai, North China, with the highest temperature reaching 35 ~ 38 C. In the south, rainfall has become the key word of weather, and the areas affected by heavy rain involve 10 provinces.

　　Data Map: At noon on June 5, the temperature in Shijiazhuang reached 38℃, and citizens traveled with various sunshade protective gear. China News Service reporter Yujia Zhai photo

　　Many places in the north enter the "sunny mode" and the meteorological conditions of ozone pollution are high.

　　After the Dragon Boat Festival holiday, the high temperature once again visited many places in the north, and the sphere of influence of high temperature in Huanghuai area of North China continued to expand. According to the weather forecast, after 20 days, some areas in eastern North China and Huanghuai will have high temperature weather for 4 to 6 days, with the highest temperature reaching 35 to 38℃.

　　In Beijing, the Beijing Meteorological Observatory issued a blue warning of high temperature at 16: 40 on the 19th. It is estimated that the daily maximum temperature in most parts of Beijing will reach above 35℃ from 20th to 21st.

　　Not only in Beijing, but also in the southern part of North China and the central and western parts of Huanghuai today and tomorrow, high temperatures will continue to spread. Among provincial-level cities, Tianjin, Shijiazhuang and Zhengzhou will have high temperatures today and tomorrow. From the 21st, Jinan will have high temperatures for five consecutive days.

　　As the "sunshine mode" is on, according to the news of the Central Meteorological Observatory, the meteorological conditions of ozone pollution in central and southern North China, Huanghuai and other places are relatively high from the 20th, with the meteorological conditions of ozone pollution ranging from 3 to 4, and the local level in central and southern North China can reach 5.

　　Take Beijing-Tianjin-Hebei and its surrounding areas as an example. From 20 to 25, the central and southern parts of the region have strong solar radiation and high temperature, which is conducive to ozone generation. The meteorological conditions of ozone pollution are maintained at level 3 to 4, and the local level can reach level 5.

　　According to meteorologists, ozone pollution will decompose rapidly indoors because it needs high temperature and ultraviolet radiation. Experts remind that for photochemical pollution dominated by ozone, it is of little use for people to wear masks. The most important way to prevent photochemical pollution is to avoid going out as much as possible and close doors and windows at the same time.

　　Heavy rain in the south involves 10 provinces, Zhejiang and Hunan.JiangxiThere is a heavy rain in the local area.

　　High temperature weather spread in the north, while in the south, especially in the middle and lower reaches of the Yangtze River, these areas that entered the "rainy season" ushered in continuous heavy rainfall. In response to the rainstorm, the Central Meteorological Observatory has issued blue and yellow rainstorm warnings for several consecutive days.

　　According to the weather bulletin of the Central Meteorological Observatory, during the daytime on the 19th, heavy rains occurred in parts of central Anhui, northern Shanghai, northeastern Guizhou and southeast coastal areas of Guangdong, and heavy rains (101 mm) occurred in Tongren, Guizhou. At 18: 00 on the 19th, the Central Meteorological Observatory issued a blue rainstorm warning again.

　　It is estimated that there will be heavy rains in southern Anhui, Shanghai, Zhejiang, central and northeastern Jiangxi, central Hunan and central Guizhou from 20: 00 on the 19th to 20: 00 on the 20th, among which there will be heavy rains (100-150 mm) in western Zhejiang, northeastern Jiangxi and central Hunan. Some of the above areas are accompanied by short-term heavy precipitation (the maximum hourly precipitation is 20 ~ 50 mm, and the local area is more than 60 mm), and there are thunderstorms and strong winds in the local area.

　　In addition, there are heavy rains and local heavy rains in the northwestern and eastern coastal areas of Fujian, the southeastern coastal areas of Guangdong and Taiwan Province Island.

　　The Central Meteorological Observatory reminded that during the process of heavy rainfall in the south of the Yangtze River and Huaihe River, it is necessary to pay attention to disasters such as urban waterlogging and landslides that may be caused by local heavy rainfall, as well as the adverse effects of strong convective weather such as thunderstorms and strong winds.

　　From the evening of June 18th to the morning of 19th, heavy rain fell in dangyang city, Hubei Province, and some residents were trapped. Fire officers and soldiers in dangyang city City were dispatched to evacuate the trapped people. Liu bangpei

　　The rainfall in the middle and lower reaches of the Yangtze River is concentrated, and the Yangtze River Defense General deploys flood control again

　　Since the Dragon Boat Festival holiday, the heavy rainfall in the middle and lower reaches of the Yangtze River has continued to attract attention. The National Defense General, the Ministry of Water Resources and other departments have repeatedly discussed and judged the rain and flood situation and deployed flood control emergency work.

　　According to the forecast of the Central Meteorological Observatory, the main rain belt of heavy rainfall in the south will be located in the south of the Yangtze River on 20-22, and then it will be carried to the middle and lower reaches of the Yangtze River in the north, and the middle and lower reaches of the Yangtze River will enter the rainfall concentration period.

　　According to the website of the Ministry of Water Resources, on the 18th, the Yangtze River Defense General once again held a meeting on the recent flood control situation in the Yangtze River basin, and deployed the dispatching work of the Three Gorges and Danjiangkou reservoirs.

　　The Yangtze River Defense General issued a dispatch order to dispatch Danjiangkou Reservoir to open two surface holes for flood discharge at 18: 00 on the 18th. At the same time, the General Office of the Yangtze River Defense issued a notice to the Hubei Provincial Defense Index, demanding that the flood control work in the middle and lower reaches of the Han River be effectively carried out. According to the deployment of the National Defense President, the Yangtze River Defense General sent a working group to Jiangxi to help guide the flood control work.

　　Ma Jianhua, executive deputy commander of the Yangtze River Defense General and director of the Yangtze River Water Resources Commission, said that the Yangtze River Basin has entered a period of continuous heavy rainfall concentration, and all relevant departments and units should further attach great importance to it and overcome the luck and paralysis; It is necessary to further strengthen the implementation of responsibilities and do a good job in flood control duty and emergency duty. (End)

Special feature of 1905 film network From the extension of the Spring Festival to the re-release, just as the movie poster wrote, I pursued my "comeback against the wind" with the attitude of "not being optimistic".

It’s not easy to make sports movies, and it’s even harder to make them well.moreoverChina Ping PongWhat I want to tell is the story of China’s competitive sports "Ace Teacher" and the world table tennis overlord. Follow the characters to "cross" back to the moment of preparing for the World Table Tennis Championships 30 years ago, starringTimmy Xu、Duan Bowen、Cai Yida、guansen dingIn an exclusive interview with the 1905 film network, I admitted that, like most viewers, I couldn’t imagine where to start writing, which was enough to match the glory of China men’s table tennis.

Cai Yida, Timmy Xu, Duan Bowen, Ding Guansen (from left to right)

In the end, the "Five Tigers" met in the trough before the Jedi counterattack: failure, regret, injury and doubt … … Competitive sports has never been an overnight success. Why can China table tennis become the "strongest king"? They gave the answer with the 1995 World Table Tennis Championships.

Before becoming the "big devil"

The average age of the "Five Tigers" in "China Table Tennis Fight Back" was less than 30 years old when shooting, among which Dong Shuai was even "After 05". Compared with the training in ball skills, it is more important for them to find their own fulcrum close to the role from the real events and prototype characters of the year more quickly and accurately.

At that time, the Five Tigers were a special group of "representatives" of China men’s table tennis. They were not only the strongest players in the whole system, but also the hope and "undertaker" of China table tennis. The five men are different in age and style of play, each with its own characteristics, but the ultimate goal is only one: to help the men’s team play a "turnaround battle" in the shortest time before the World Table Tennis Championships.

It was the most difficult period of table tennis in China. On the one hand, compared with the fast-moving European rivals and the "old rivals" in Asia, our talents had a certain "broken file"; On the other hand, the targeted research on China in tactics by countries all over the world has also made our traditional dominant "first three boards" technology gradually lose its leading position.

The backwardness in concept, experience and training means has made China men’s table tennis fail many times. It was at this time that the "Five Tigers" were assembled by the new coaching staff from all echelons.

Duan Bowen, who plays Huang Zhao, is unanimously recognized as the most similar prototype in China Ping Pong. In order to achieve this effect, he needs to gain 30 pounds while doing a lot of exercise. However, being fat is more than just pursuing superficial "looking like". In the director’s view, this weight has become the "soul" of this role to some extent.

Duan Bowen revealed that Wang Tao played raw rubber backhand, and this time his practice in the film was mainly based on fast break of raw rubber backhand. Nowadays, this technology is not used much in the field, but Wang Tao fought against opponents from all over the world with backhand raw rubber. It is precisely because of "fat" that he has a strong enough core strength to support his own play, and the speed of backhand has become the main "killer" of Huang Zhao in the film.

The similarity between Duan Bowen and the prototype has been recognized by one of the "Five Tigers" and Ma Wenge, the technical director of China Table Tennis. Having really experienced the "lowest period" of China men’s table tennis, the former champion was particularly excited to see this story put on the big screen.

It is an unforgettable and valuable experience for Timmy Xu, who plays this character, to have a prototype directed by the crew at close range.

Before the film was released, his "face-changing" makeup was once on the hot search list, and "I can’t recognize Timmy Xu" became the feeling mentioned by the most viewers. Pull out eyebrows and apply black powder … … However, compared with making an issue of "face", Timmy Xu wants to be closer to the characters from the point of view.

"The change of appearance is only the most basic. The athletes at that time were actually in a different mood from the young people today. I was more (thinking) about feeling their spirit at that time. "

Seeing the "1995 World Table Tennis Championships" again on the set, Ma Wenge, as the technical director, felt that several actors really had the "Five Tigers" status and momentum, and he seemed to recall the feeling of winning every ball in that year. This is the most emotional game: there is excitement in front of the people in my hometown, tension in the face of the final "life and death", and pressure to fight a turnaround for many years.

However, for the actors who experienced this historical moment for the first time and the audience who saw the past behind the Wesling Cup through the lens for the first time, the "Jedi counterattack" presented in China Table Tennis has far exceeded the victory itself.

Looking at this "dream team" that dominates the world, we always have the confidence that "China table tennis will not lose". But at that time, it was more like an endless road and a group of "underdogs" in front of the "Five Tiger Generals". No one knows whether the result of hard work is to win or fail again, so before becoming the "big devil", be an invincible "Xiaoqiang".

It’s never "can’t lose", but it’s not afraid to lose or admit defeat. "If others have practiced for 1000 times, we will practice for 10,000 times", which is the China table tennis spirit that people are most proud of.

Today’s "Ma Long",is the answer of China table tennis for 30 years.

"How far are you from the world champion of the real national team?" During the filming of Ping Pong in China, Ding Guansen, who played the role of Liu Guoliang as the director of his youth in the film, chatted with the members of the second national team who assisted in the filming.

"In my heart, they are already one in a million," Ding Guansen recalled, "but he said,’ Guansen, I tell you, I play with Malone, and you play with Malone, and the result is the same. "Can only score by Malone’s mistakes.

When hearing this sentence, Ding Guansen admitted that he and several other teammates "stood up": "I really realized how cruel competitive sports are. And why can China table tennis be so powerful? Because there have been layers of people trying to go up. "

Ma Wenge, the technical director, including Ding Song and Kong Linghui in the "Five Tigers", once recognized the technical movements of several young people after watching them hit the ball: "The curve and speed of the ball are really real, and the playing posture can’t be exactly the same, but it’s not easy to achieve this level in a short time."

However, during the interview, several young actors "denied" their training achievements for more than 8 months in unison: Do you want to imitate any "killer" in front of the camera?

What I have learned in these months is just the fur in the fur.Through actual combat and training, they actually felt the "China table tennis" inside story, and they also had a completely different understanding of competitive sports and China sports "dream team".

"Director Deng Chao often says that this is not a story about success, but this film is about how to face failure." At the beginning of receiving the project invitation, Timmy Xu, like the vast majority of the audience, could not imagine where the glory of China table tennis should be most convincing.

The special "trough period" 30 years ago became the most suitable entrance.Every word is brilliant, but every word is brilliant: "Only this turnaround in 1995 laid a good foundation for the decades after (China table tennis)." Kong Linghui, who was still a "young player" in the team, said this after learning the story of China Ping-Pong.

Up to now, China has won the Wesling Cup 22 times. In the last 10 World Table Tennis Championships, the China table tennis men’s team has never let this honor fall by.

"Why is table tennis in China prosperous now? It is because so many predecessors were sweating and bleeding at that time, casting our last Great Wall. This history is worth being understood by more people (through this film), and they are the only ones who have table tennis in China now." Ding Guansen regrets.

Competitive sports has never been a smooth sailing "cool article". "When you choose to be an athlete, you choose the most difficult road."

"China Table Tennis" is a complete core of China sports "Dream Team" with its hard work on the field and cruelty outside the field. Now, the success of "Malone" is the most satisfactory answer to China’s ping-pong spirit.

emergency food（emergence food，EF）It refers to a kind of food used to maintain human survival in emergencies such as disasters, wars and crashes. Common emergency foods mainly include earthquake relief emergency foods, military emergency foods, civil emergency foods and M9 outdoor emergency foods. Due to the late start of research and development,There is still a certain gap between China’s emergency food and developed countries such as the United States and Japan in processing and packaging, nutritional characteristics, food safety and other key technologies.

At present, the problems caused by the insufficient development of emergency food have initially appeared. First of all, during or after natural disasters, food in disaster areas and other affected areas may be contaminated by microorganisms and chemicals, and some food-borne diseases, including hepatitis A, typhoid fever and a series of intestinal diseases, such as cholera and dysentery, are prone to break out, thus affecting the health of victims and the effect of disaster relief.

Secondly, due to the imperfect design of emergency food formula,Its nutritional structure is difficult to meet the nutritional supply needs of specific people.It is difficult to predict the time and place of some emergencies, which also leads to the traditional supply chain processing equipment and storage and transportation system can not meet the stable supply and accurate distribution of emergency food, which makes the rescue efficiency decline.

This paper summarizes the types and characteristics of emergency food, the development status of product development, storage and transportation, processing and packaging technology, and looks forward to the research and development strategy, processing, storage and transportation strategy and food safety of emergency food in order to provide new ideas for the development of emergency food industry in China.

Types and characteristics of emergency food

With the frequent occurrence of emergencies around the world, the demand for emergency food is increasing. In order to better meet the nutritional needs of different rescue scenes and people, and combined with the laws of emergency food diversity, high energy density, storability and convenience for eating, a variety of common emergency food types have appeared in recent years, including canned food, compressed dry food, instant hot food, dehydrated food, etc. The advantages and disadvantages of different types of emergency food are shown in Table 1.

Table 1 Advantages and disadvantages of different types of emergency food

Emergency food has the following characteristics:

(1) Long shelf life: Emergency foods usually have a long shelf life to ensure edibility in emergency situations;

(2) Rich nutrition: under the premise of meeting basic energy, emergency food pays more attention to the functionality and special dietary effect of food according to the needs of the target rescue population;

(3) Portable: Emergency foods are usually packaged in light packages to quickly respond to emergencies;

(4) Food safety: Due to the harsh and changeable emergency rescue environment, the food safety of emergency food is very important.

When selecting emergency food types, it is necessary to make reasonable selection and planning according to disaster types, storage conditions, crowd demand and transportation environment. At the same time,Emergency food should be inspected and updated regularly to ensure food safety.

Development status of emergency food products

In recent years, China’s emergency food has developed steadily in terms of shelf life, taste, flavor and safety, but there is still a big gap compared with foreign countries. The shortcomings include:

(1) Low comprehensive performance. The diversity, nutrition and safety of emergency food need to be further strengthened;

（2）Functional development is limited.Due to the lack of practical experience in functional development and the lack of clear supervision and guidance standards, it is difficult for enterprises to carry out effective innovation and development;

（3）The production cost is high.The research and development of key technologies and formulas of emergency food are lagging behind and the added value is low, which leads to its lack of core competitiveness and affects production costs.

With the increasing market demand for serialized, functional, long shelf life and full nutrition emergency foods, continuous optimization, innovation and enrichment of R&D categories have become the key to the development of emergency foods.

With the development of science and technology,Emergency food is paying more and more attention to functions other than satiety and special dietary effects.Adding some ingredients or nutrients with special physiological functions to raw materials can enhance the overall functionality of emergency food.

At present, China’s self-developed "China 05 compressed food" has many functions, such as improving intestinal health, fighting hunger and promoting physical recovery, which greatly improves the efficiency of emergency rescue. Internationally, the United States has successfully developed military functional foods with different functions, such as anti-altitude sickness, anti-fatigue, refreshing the mind, quickly replenishing energy, improving intestinal function, etc. In order to meet the needs of different groups of people, modular foods with mineral modules, vitamin modules and energy modules have also been developed. Japan’s One Table Company has developed an emergency rescue jelly that is beneficial to swallowing, taking into account the people of all ages, so as to meet the needs of the elderly and children for quick nutrition supplement.

High-intensity rescue work in emergency rescue often makes rescuers in a state of physical and mental fatigue and overwork, which leads to inattention, weakened resistance and reduced work efficiency. Therefore,It is necessary to develop emergency food to delay or eliminate fatigue.

Hao Limin and others designed an anti-fatigue beverage formula, which was composed of oligosaccharides, taurine, caffeine, effervescent and other materials. It was processed into effervescent tablets by mixing, granulating, drying, cooling and tabletting. The animal test results showed that the beverage had obvious anti-fatigue effect. Wu Tianyi et al. conducted related research on anti-hypoxia functional fermented products. Through the screening of animal anti-hypoxia tests, it was found that natto and Schizophyllum commune fermented products from microorganisms had significant anti-hypoxia function, which provided a new design idea for the development of anti-hypoxia functional emergency food in the future.

Research status of emergency food storage, transportation and processing technology

In 2003, China began to pay attention to the research on emergency food storage and transportation, and compared with foreign countries, the research started late. In the "storage and transportation" system, food is generally classified and food quality standards are formulated to ensure food quality, facilitate transportation and improve rescue efficiency.The key to the efficient operation of the storage and transportation system lies in making full use of the electronic information platform.Ensure the coordination and mutual supervision of all links, strengthen the contact between emergency food storage and transportation and electronic information enterprises, so as to improve the rapid response ability of emergency food storage and transportation.

At present, there are many researches on food supply chain at home and abroad, covering the supply chain research of various specific food categories, such as fruits, vegetables, grain, etc. However, the research on emergency food logistics is rarely reported. The problems existing in the existing emergency food storage and transportation system in China are mainly summarized as the following four points:

(1) The layout of emergency material reserve centers around the country is unreasonable;

(2) Due to the asymmetric information flow and the large number of relief materials transfer stations in emergencies, the supply imbalance is prone to occur;

(3) Lack of procurement and operation standards for emergency food storage and transportation;

(4) The improvement of food safety evaluation system in the process of emergency food storage and transportation is not perfect, and the efficiency needs to be improved.

Compared with emergency food in developed countries,Domestic emergency foods generally have the problems of short shelf life and low scientific and technological content.The shelf life of self-heated rice and freeze-dried meat products introduced by American Mountain House Company can reach 30 years. The emergency food supply package launched by Wise Company is not only convenient and fast, but also can meet the needs of families, and its shelf life is as high as 25 years. In contrast, the shelf life of emergency food made of domestic Changwo special food by freeze-drying technology is not half as long as it is.

This shows that in the future, the development of emergency food in China should be oriented towards using emerging technologies to maintain the shelf life of food, thus developing a sustainable food value chain and limiting food waste. In order to prolong the shelf life, optimize the taste and promote nutrient absorption,More and more emerging processing technologies have potential application value.

1. Vacuum freeze-drying technology

Vacuum freeze-drying is to freeze the material below the eutectic point and remove the water in the material by sublimation in vacuum environment, so as to achieve the purpose of freeze-drying.It is common in military emergency food, which is used to improve the retention rate of nutrients and maintain the original color and flavor.Vacuum freeze-dried food can be stored at room temperature for a long time without adding preservatives because of its low water activity, and it is convenient to carry and transport.

Yang et al. used hot air drying, hot air vacuum combined drying and vacuum freeze-drying to dry the velvet antler mushroom. The results showed that vacuum freeze-drying could better keep the color and shape of velvet antler mushroom. However, vacuum freeze-drying has the disadvantages of time-consuming, energy-consuming and high cost when used alone, and these problems can be effectively solved by combining with other drying technologies.

Jiang et al. evaluated that freeze-drying combined with microwave vacuum drying was used to dry functional okra snacks. Compared with freeze-dried samples, the combined drying samples had better hardness and brittleness, and the drying time and energy consumption were reduced by about 75.36% and 71.92% respectively. Therefore,Vacuum freezing combined with vacuum microwave drying can be one of the development directions of emergency food drying.

2. Ultra-high pressure technology

Emergency food needs to have a long shelf life to ensure the safety and edibility of food in an emergency. Ultra-high pressure technology uses high pressure force to act on food,Without using high temperature or chemical additives, the shelf life of food can be prolonged by killing microorganisms and inhibiting enzyme activity, while maintaining the original flavor, color and nutrition of food.

Compared with traditional high-temperature treatment, ultra-high pressure technology hardly reacts with covalent bonds of small molecules, and only destroys non-covalent bonds that form the three-dimensional structure of macromolecules, such as hydration, ionic bonds and hydrogen bonds. By inactivating or activating biomolecules such as polysaccharide and protein in food, the product quality can be improved. It is found that soaking and ultra-high pressure pretreatment can increase the content of fast digestible starch and slow digestible starch in rice starch, and reduce the content of resistant starch, thus improving the digestion characteristics of rice.

It should be noted that ultra-high pressure sterilization technology is not suitable for all types of food, and the composition and structure of different foods have different sensitivity to pressure, so it should be tested according to specific products to determine the best treatment scheme.

3. Ultra-fine grinding technology

Ultra-fine pulverization technology pulverizes material particles to micron level by mechanical or hydrodynamic force, thus reducing particle size, changing composition and internal structure, and improving physical and chemical properties of materials. For example, ultrafine grinding canIncrease the solubility of foodSo that it can be easily dissolved with water or other liquids in a short time and quickly prepared into food; In addition, it can alsoEnhance the digestibility of foodSo that it can be absorbed and utilized by the human body in a short time and provide energy quickly, and reduce the burden on the gastrointestinal tract.

Sun et al. treated dehydrated celery stems with superfine grinding technology, and found that there was no significant difference in chemical composition of celery powder with different particle sizes. However, with the decrease of particle size of celery stem powder, its ability of scavenging free radicals was continuously enhanced, which provided a reference for developing fast-dissolving antioxidant functional foods. Zhang et al. treated oat bran by ultra-fine pulverization technology, which improved the surface properties, water holding capacity and swelling capacity of oat bran. The prepared oat bran powder has good physical and chemical properties and oxidation resistance. The data obtained from this study provide theoretical basis for the application of ultra-fine pulverization technology in emergency food deep processing and functional food development.

4. Microcapsule technology

Microcapsule technology is a new packaging technology, which forms a delicate and tough shell around liquid or solid core materials, so that the core materials can be packaged inside the shell. Nutrient fortification is a common technology to improve the nutrition of emergency food. However, many nutrients or functional components such as vitamins, probiotics and antioxidants are prone to degradation, oxidation and volatile loss during production, storage and transportation due to their unstable physical and chemical properties.Using microcapsule technology to embed nutrients and functional components can play a protective role, reduce the influence of external environment such as light, heat and oxygen, and at the same time make them be digested and absorbed when needed.Improve the nutritional value of emergency food.

The results show that adding microencapsulated nutritional fortifier ferrous sulfate to flour can mask the iron smell and avoid the rancidity of oil caused by direct addition. Das et al. successfully prepared anthocyanin extract from purple rice bran with modified glutinous rice starch as wall material by spray drying technology. Microencapsulation showed that the surface of microcapsules was more uniform and smooth than natural starch and modified starch, and the storage stability of microencapsulated anthocyanins was improved. Generally speaking, microcapsule technology provides a new possibility for emergency food, which can improve the taste and prolong the storage time while ensuring nutrition and convenience.

5. Nanotechnology

Nanotechnology can be used to enhance the nutritional value of food and improve its functional components. For example, processing nutrients to less than 100nm by nanotechnology can improve the absorption and utilization rate of nutrients by human body, which can solve the pain point problem that emergency food has low moisture content and is not easily absorbed and utilized by human body.

Nanotechnology can also improve the texture, taste and flavor of food, and be used to remove harmful pollutants in food, such as pesticide residues, heavy metals and harmful chemicals. The special properties of nano-materials enable them to adsorb or catalyze the degradation of these pollutants and improve food safety. However, the application of nanotechnology in food processing is still in its infancy. In the future, when nanotechnology is applied to emergency food, it is necessary to carry out risk assessment and strict supervision on the safety of nanomaterials to ensure the sustainable development of nanotechnology and food safety.

Research status of emergency food packaging technology

Food packaging is a very important processing link that affects the quality of emergency food. As a barrier layer of food, it can protect food from adverse factors such as external environment, microorganisms and pollutants, maintain food freshness, hygiene and safety, and extend its shelf life.Emergency food is usually stored by sealing, modified atmosphere and vacuum packaging. The packaging forms include vacuum aluminum foil packaging, composite nanotechnology packaging and edible film packaging.

In 2016, China developed the world’s first compressed packaging of disaster relief emergency food. By using this pre-foldable compressed packaging food, each logistics vehicle can carry 50% more goods, and the transportation and supply of disaster relief food is more efficient and faster, and the transportation cost is lower. In recent years, in order to prolong the shelf life of food and ensure the quality and safety of food, a variety of functional food packages have appeared in the market, such as antibacterial packaging that inhibits the growth of microorganisms, intelligent packaging that monitors the quality of food, and biodegradable environmental protection packaging.

1. active packaging technology

Active packaging is defined as an intelligent system, which aims to extend the shelf life and improve the quality of food through the interaction between packaging materials and the internal environment of food, so as to meet consumers’ demand for fresh, stable and safe food. Active packaging mainly includes antioxidant packaging and antibacterial packaging. Among them, antioxidant packaging can prevent food from deteriorating by absorbing oxygen or releasing carbon dioxide in the packaging, thus prolonging the shelf life of food. Common oxygen adsorbents include ethylene adsorbent, iron powder, activated carbon, biological enzyme and so on.

Antibacterial packaging mainly inhibits the growth of pathogenic and corrosive microorganisms in food by introducing antibacterial agents, prevents the migration of pollutants, and can also show the leakage of some packaging, thus ensuring food safety. These active packaging technologies provide a broader design idea for future emergency food packaging,So that it is no longer limited to dehydration and drying, and fresh food with better experience can be selected.

2. Nano packaging technology

Nano-technology involves the development of single or multi-dimensional materials less than 100nm. Studies have confirmed that packaging materials with nano-size have large specific surface area and small pores, which can effectively isolate the invasion of external gas, moisture and pollutants, prolong the shelf life of food and reduce the loss of food. In addition, the nano-packaging material has excellent mechanical properties,Can give packaging materials high mechanical strength and durability, and is suitable for use in harsh emergency environments.Therefore, nano-materials are expected to improve the mechanical and barrier properties of emergency food packaging.

On the other hand, the surface of nano-materialsAntibacterial agents such as nano silver can also be added to inhibit microbial growth and reduce food pollution and corruption.Thereby improving the safety of food. Compared with ordinary antibacterial packaging, nano-packaging has stronger anti-corrosion and fresh-keeping function, and is less affected by various extreme weather. In the future, with the continuous development of nanotechnology, nano-packaging materials are expected to provide better protection and quality control for emergency food, and ensure that people can get high-quality food supplies in emergencies.

3. RFID packaging technology（RFID）

RFID is a technology to automatically identify objects by using radio waves. Identification is accomplished by storing serial numbers or other information on a microchip connected to an antenna. Based on wireless communication, RFID can provide real-time information about temperature, relative humidity, nutrition and supplier information in the process of products passing through the supply chain, improve traceability and ensure food quality and safety.

The application of RFID in the field of military food packaging mainly focuses on the storage and transportation stage. By adding RFID tags to military food packaging, the whole process information tracking of military food in the distribution process can be realized through the one-object-one-code identification function of tag chip. In case of emergency, the whole distribution process needs no unpacking, and all the information of the product can be obtained directly by scanning the reader, including the processing information, storage status, transportation information and eating methods of the product, so as to realize the rapid and accurate replenishment of emergency food and improve the speed and accuracy of distribution.

At present, RFID technology has been widely used in the field of civil food packaging, and these experiences can be used for reference in the field of emergency food packaging.Realize the whole process tracking and management of emergency food supply chain, and improve the efficiency and quality of emergency food distribution.

4. Time-temperature indicator technology（TTI）

TTI technology aims to monitor the temperature changes in the food supply chain to predict the changes of food heat-sensitive nutrients and indicate the remaining shelf information of products, thus reducing food consumption and ensuring food safety. The basic working principle of TTI technology is based on the changes of machinery, chemistry, electrochemistry, enzymes or microorganisms, which are usually manifested as visible reactions in the form of mechanical deformation, color development or color movement. It can monitor and record some key parameters in the whole food distribution process,By combining the cumulative effect of time and temperature, the remaining shelf life of the product is dynamically displayed.In order to monitor the cumulative effects of time and temperature on specific products, TTI labels are usually attached to food packaging.

Compared with other temperature monitoring equipment, TTI is small in size and cost-effective, and can reflect the time and temperature changes experienced by food by displaying irreversible effects that are easy to observe. At present, the packaging method of emergency food usually follows the date of production, and the date of production and the time limit for eating are printed on the outer packaging. However, in an emergency situation, the quality and safety of food become particularly important due to the instability of storage and transportation environment. By using TTI technology, the quality and safety of emergency food can be better monitored and controlled, and whether the food has been infringed by the external environment can be found in time, which provides great guarantee for enhancing the safety of emergency food.

5. Edible packaging membrane technology

Edible packaging film refers to the packaging film with porous network structure formed by intermolecular interaction with edible materials such as protein, grain matrix, cellulose and other raw materials, supplemented by edible crosslinking agents, plasticizers and other substances.This packaging material can not only effectively protect food quality, but also reduce environmental pollution.

For example, the grain matrix film is usually made of soybeans, which is safe and harmless. At the same time, the packaged products also have the effect of moisture-proof and moisture-proof, which has a good effect on improving the quality of fresh-keeping foods. Compared with traditional packaging materials, edible packaging film has the characteristics of edibility, and it will not produce packaging waste after use, reducing the negative impact on the environment, making edible packaging film a more environmentally friendly choice.

Edible packaging film has a potential application prospect in the field of emergency food, which can provide good food protection and preservation effects, while reducing the generation of packaging waste. However, when edible packaging technology is applied to emergency food in the future,It is necessary to evaluate the stability and performance of this technology under various environmental conditions.

6. Biodegradable packaging technology

With the continuous development of new technologies and new resources, it is another research direction with great potential to use degradable, energy-saving and emission-reducing packaging materials instead of high-energy and refractory packaging materials. At present, researchers have done a lot of research on degradable packaging materials, and their barrier properties need to be improved when they are used in emergency food in the future.Designed as a biodegradable high barrier material.

Microfiberized cellulose material（microfibrillated cellulose，MFC）It is a biodegradable and widely used high-performance material, which usually comes from green beet pulp, bagasse and soybean skin, and is composed of a large number of cellulose microfibril aggregates. Lavoine et al. reported that microfibrillated cellulose materials and plastic film materials can be combined to form nano-composite packaging materials. Through surface chemical modification, the shortcomings of MFC materials in barrier performance and oxygen barrier performance were solved. However, due to the hydrophilic characteristics of bio-base, the moisture resistance of MFC nanocomposites needs to be further studied and improved.

In the future, intelligent packaging technology can be adopted to optimize the packaging barrier performance and design biodegradable multiple high barrier materials.

Prospect of emergency food development strategy

With the frequent occurrence of natural disasters and the increase of emergency situations, the complexity of rescue site environment and the diversification of rescue people, the development of emergency food in the future needs to introduce advanced scientific and technological innovation technology. For example, the use of Internet of Things technology, intelligent warehousing, scientific packaging technology, etc., to achieve traceability and monitoring of emergency food, improve the quality of emergency food and rescue efficiency. In addition, through the dimensions of raw material screening, formula design, texture reorganization, packaging design, etc., emergency foods in different scenes and target groups are developed to accurately match the nutritional needs of specific groups, increase their acceptance and satisfaction in emergency situations, and improve the quality and effect of emergency response.

1. Future research and development strategy of emergency food

Future emergency food is a kind of food that can quickly and accurately match the nutritional needs of specific people according to different emergency situations, and is convenient for transportation and storage. Based on the research results of emergency food in various countries, the future research and development strategy of emergency food in China can be carried out from three aspects: serialized emergency food, functional emergency food and high-tech application of science and technology.

1) Serialized emergency food.The serial development of emergency food is mainly adjusted and customized according to the dietary needs of different disaster environments and different people, which means developing diversified emergency food products.Including vegetarian, gluten-free, lactose intolerance and other products with special dietary needs to meet the needs of different groups of people.

To carry out the research strategy of emergency food serialization, especially for the needs of special groups such as the elderly, children and pregnant women, the following measures can be taken:

① Reasonable formula design, and develop emergency formula according to the nutritional needs and health status of special groups. For example, for the elderly and pregnant women, attention should be paid to the intake of protein, vitamins, minerals and cellulose; For children, energy requirements and digestibility need to be considered.

② Selection and treatment of ingredients. In order to meet the nutritional needs of the elderly and pregnant women, you can choose ingredients that are easy to chew and rich in protein and fiber; For children, you can choose ingredients that suit their taste and digestive system.

③ Safety and non-allergic guarantee. For pregnant women, children, the elderly and other special groups, it is necessary to ensure that food does not contain substances that may cause allergic reactions, such as peanuts, nuts, alcohol and so on.

④ Product form and packaging design. For the convenience of the elderly and children, it can be designed to be easy to open, chew and digest, and adopt easy-to-operate packaging methods, such as vacuum packaging and canned food.

2) Functional emergency food.The development of functional emergency food will pay attention to the nutritional balance of emergency food and the addition of functional ingredients, so as to meet people’s special needs in emergencies and slow down and eliminate the adverse effects of emergency conditions on human physiology or psychology. exploitationAnti-fatigue, anti-hyperreflexia, anti-anxiety, low temperature tolerance, help sleep, improve constipation and improve immunity.Functional emergency food is the focus of research and development of emergency food at present.

When natural disasters occur, they are often accompanied by water pollution, which will lead to serious gastrointestinal diseases and various infections. Studies have confirmed that bioactive substances can be used to treat some diseases, improve the function of biological systems or resist pathogens. For example, intake of polyunsaturated fatty acids can alleviate intestinal inflammation by changing intestinal flora and enhancing intestinal cell barrier function; Polyphenols such as curcumin can reduce the stress of endoplasmic reticulum, thus reducing the inflammatory response of human intestinal epithelial cells.

Previous studies have shown that intestinal inflammation can be improved not only by drugs, but also by improving dietary intake and increasing the intake of polyunsaturated fatty acids, dietary calcium and vitamin D, thus improving intestinal health.

For example, increasing the dietary fiber content in emergency food can promote intestinal peristalsis and defecation, and prevent constipation and gastrointestinal problems; Adding probiotics or fermented food can improve the balance of intestinal flora, enhance the function of immune system and reduce the risk of gastrointestinal infection; Foods rich in vitamin C and antioxidants, such as citrus fruits and vegetables, help to enhance the immune system function, improve the body’s resistance and reduce the risk of infection.

All in all,By improving the nutritional composition of emergency food, we can alleviate the intestinal problems caused by disasters and help people stay healthy in difficulties.The above measures can help to improve the health effect of emergency food on intestine, but in practical application, the preservation and storage conditions of food need to be considered to ensure the safety and nutritional value of food.

3) The application of scientific and high technology.The introduction of high technology is of great significance to the breakthrough of emergency food in shelf life, nutrition and functionality. In terms of extending the shelf life, methods such as microbial control, vacuum packaging and irradiation sterilization can be adopted. In terms of improving nutrition, nutritional enhancers or functional ingredients can be added to emergency food to enhance its nutritional value.

In terms of improving functionality, high-tech can be used to develop emergency food with specific functions, for example, adding natural antioxidants, humectants, thickeners, etc. to increase the antioxidant capacity, water retention and taste of food. In addition, the use of nanotechnology can improve the texture and taste of food. In the aspect of personalized nutrition enhancement, it can be combined with wearable equipment and sensors. According to the results of physiological testing,(such as lack of potassium or vitamin A)Form personalized demand data, send it to the processing base, and generate special nutritious fortified food made of seasoning liquid and powder through additive manufacturing.

To sum up, serialized emergency foods can meet the dietary needs of different groups of people, while functional foods pay attention to nutrition and special needs, while the application of science and technology and high technology is helpful to improve the quality stability, nutrition promotion and functional supplement of emergency foods. These strategies will promote the further development of emergency food in China in the future and ensure that people can get a safe and balanced food supply in disasters.

2. Emergency food processing storage and transportation strategy

Emergency food is an important relief material for survival under emergency conditions, which requires extremely high production environment and product quality in the supply chain.Therefore, it is necessary to establish an automatic, flexible and digital intelligent supply chain system.The following measures can be taken in the production of emergency food in the future.

1) Introduce intelligent equipment.Through intelligent sorting and cascade utilization technology of raw materials, artificial intelligence combined with deep learning of photoelectric equipment, inductive classification combined with manual assistance, the process parameters in the production process are continuously optimized, and a demand-oriented raw material supply system is established, which can realize the automation of raw material pretreatment and processing, reduce the risk of human subjective errors and cross-contamination, and achieve the effect of improving quality and reducing cost.

2) Build a flexible supply chain.Based on the production requirements of serialization, functionalization and science and technology of emergency food in the future, flexible supply chain can help enterprises optimize resource allocation and utilization, thus reducing costs. For example, according to the production demand of emergency products, enterprises promote the digital transformation of production processes to ensure product quality, efficiency and sustainable production capacity; In addition, through flexible adaptation of intelligent filling and packaging technology, we can quickly switch and adjust product specifications and packaging methods, so that enterprises can quickly respond to changes in market demand and improve emergency rescue efficiency.

3) Establish a digital monitoring system.By introducing precise temperature control technology and RFID technology, the key parameters of the process, such as temperature, humidity, flow rate and speed, can be collected in real time by sensors and monitoring equipment, so that the abnormal situation can be adjusted in time to ensure that the products meet the standard requirements. At the same time, considering that the time and place of emergencies are difficult to predict, the joint application of the Internet of Things and smart packaging technology can track the location, transportation conditions and quality of emergency food in real time, and combine with the logistics management system to carry out intelligent distribution and route optimization in real time according to the changes of disaster situation, so as to achieve the best transportation efficiency and save costs.

Different from ordinary food, the demand for emergency food will be affected by various factors.In the future, the development of emergency food should adopt modular design, that is, food should be grouped and packaged according to function or proportion, so that people can choose and combine different types of food according to their needs.And ensure the balanced nutrition of food. Modular design of emergency food has the advantages of flexible selection, balanced nutrition, easy carrying and storage, and improved emergency response flexibility, which can play an important role in future emergency rescue.

3. The prospect of emergency food safety.

There are some harmful substances such as mycotoxins, heavy metals and allergens in the production, processing and transportation of emergency food.It is of great practical significance to establish an emergency food quality management system, analyze the potential hazards in the production process and continuously monitor them.

In recent years, the rapid nondestructive detection technology of food and food raw material hazards has been widely used in the field of food detection and sorting, such as multi-spectral imaging technology, hyperspectral imaging technology, terahertz spectral imaging technology and so on. Because it is simple, rapid and nondestructive, and can obtain the image and spectral information of the detected substance at the same time, it has potential application prospects in food quality and safety detection, mainly including variety identification, adulteration analysis, quality and hazard detection and a series of applications.

Shi et al. realized the rapid nondestructive detection of Fusarium graminearum and vomitoxin in wheat by multi-spectral imaging technology, and explored a new method for monitoring mycotoxin pollution in wheat production, processing and storage. Liu et al. can monitor zearalenone in corn quickly and non-destructively through multi-spectral imaging combined with machine learning technology.（ZEN）The content of mycotoxin is of great significance to the monitoring of mycotoxin pollution during corn storage and transportation.

Du et al. realized the rapid detection of Staphylococcus aureus enterotoxin B in milk by Raman spectroscopy and stoichiometry, which ensured the safety of milk. Liu et al. quickly determined the concentrations of aflatoxin B1 and benzopyrene in soybean oil by terahertz spectroscopy combined with chemometrics, which provided an effective means for food safety monitoring.

In addition, harmful substances, microbial contamination and chemical residues in food processing seriously affect the quality and safety of food. Therefore, through the rapid detection technology of food hazards in the processing process, it can help manufacturers to respond quickly and reduce or avoid unqualified production operations.

Traditional on-line detection technology often has some shortcomings, such as requiring large equipment and professional operators, and complicated pretreatment.Electrochemical detection methodIt has the advantages of high sensitivity, quick response, real-time monitoring and selectivity. By measuring and analyzing electrochemical signals such as current and voltage in food raw materials, it can be judged whether there are harmful substances.

Gao et al., from the perspective of electrochemical detection, used the electrolyte gate-controlled graphene transistor with two-dimensional graphene as the channel material to realize the rapid identification of the freezing and thawing degree of beef. Mao et al. aim at heavy metal Cr in aquatic products（VI）In order to solve the pollution problem, two-dimensional monatomic iron material is used as the colorimetric sensor of peroxidase to detect Cr in fish quickly and simply.（VI）, and achieved good expected results. Zhu et al. developed a portable aptamer sensor, which has the characteristics of simple operation and portability, and can simultaneously detect T-2 toxin and zearalenone in corn and oat flour, thus realizing the on-line detection of mycotoxins during processing.

In the future, multi-functional electrochemical biosensors and nano-devices can be constructed through electrochemical aptamer joint detection technology, so as to realize the detection of complex hazards such as benzopyrene and allergens in the production process and ensure the safety and stability of food quality in the production process. The flow chart of future emergency food research and development strategy is shown in Figure 1.

Figure 1 Future Emergency Food R&D and Development Strategy Process

conclusion

In recent years, emergencies have occurred frequently in China, and the demand for emergency food has been rising continuously. Especially after the COVID-19 epidemic, China residents’ awareness of food nutrition and safety has been continuously enhanced, and food is required to have certain functionality while meeting basic energy. Therefore, one of the first tasks in the post-epidemic period is to accelerate the research on emergency food.

For the development of emergency food in China, there are many problems in the process of modern rescue, such as insufficient nutrition supply of emergency food, imperfect functional food and difficulty in accurate distribution. Based on this actual situation, the design and development of rescue food with complete nutritional functions, convenient eating and convenient storage and transportation, and the realization of industrial production can not only meet the national emergency relief needs, but also fill the food shortage of emergency relief materials.

By analyzing the development gap of emergency food at home and abroad and thinking about the future development trend of food, this paper puts forward three research and development directions of emergency food, and produces a series of safe, fresh, nutritious and stable emergency food through intelligent supply chain and accurate and efficient detection technology, so as to make it have core competitiveness and greater development space in the market, and gradually open and improve the emergency food market in China.

Acknowledgement: Professor Hao Limin, Institute of Quartermaster Engineering Technology, Institute of Systems Engineering, Academy of Military Sciences, gave advice and help; Support of agricultural eco-environmental protection and quality and safety industrial technology system in Anhui Province.

This article comes from WeChat WeChat official account:Science and technology herald (id: streview), published in Science and Technology Herald, No.19, 2023, by Ning Cheng (Ph.D., School of Food and Biological Engineering, Hefei University of Technology), Liu Changhong and Zheng Lei (correspondent, same as before, professor).

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　　Life is easy to get old, but it’s hard to get old. The ninth day of the ninth lunar month is China’s Double Ninth Festival, which is also called "Old People’s Day". Respecting the elderly is the traditional virtue of the Chinese nation. Just after the Double Ninth Festival, Luo Tianjiong, director of the geriatrics department of Nanjing Hospital of Traditional Chinese Medicine, sent nine health guides, aiming at caring for the elderly and caring for their health.
Correspondent Xia Fan Yangzi Evening News/Zi Niu News Trainee Reporter Lu Yanlin

　　1. Pay attention to fall prevention.

　　Due to the increase of osteoporosis and bone fragility, the elderly are prone to fracture, soft tissue injury, psychological trauma and other serious consequences when they fall, and their incidence rate rises sharply with age. Luo Tianqiong said that the elderly need to pay attention to the prevention of falls at home, shoes should be anti-slip, and the light should be bright enough. Once they fall, they should be actively sent to the hospital. 48 hours after the fall of the elderly is the prime time for treatment.

　　2. Reasonable diet and balanced nutrition

　　Light diet, less oil and salt, fresh and hygienic food, and balanced nutrition. The diet is mainly cereal, with a matching thickness. Eat regularly and quantitatively, chew slowly, ensure that there are vegetables in the meal and fruits every day, take in some high-protein foods such as fish, meat and eggs, often drink milk to supplement calcium, and take vitamin D in the sun for 15-20 minutes every day to promote the absorption of calcium, actively replenish water and pay attention to prevent sunburn. Advocate not smoking, drinking less and drinking too much.

　　3. Exercise properly and do what you can.

　　With the growth of age, many elderly people are more and more reluctant to exercise. Although they understand that proper exercise can promote health, what they don’t know is that due to lack of exercise, elderly people often suffer from decreased resistance, muscle atrophy, physical decline, etc. Over time, diseases come one after another. It is suggested that the elderly choose appropriate exercise methods, such as walking, square dancing, Tai Ji Chuan, Baduanjin, etc., and the exercise intensity should be tolerated by individuals.

　　4. Ensure sleep and take a proper lunch break.

　　The sleep of the elderly is shallow and easy to wake up. Half of the elderly in China have sleep disorders. Long-term lack of sleep will cause mental fatigue, dizziness, weakness of limbs, etc. Luo Tianjiong suggested that the elderly should ensure six hours of sleep and take a proper lunch break for half an hour every day, which is conducive to physical and mental health. When insomnia occurs, they can massage points such as Neiguan, Shenmen and Sanyinjiao to help sleep.

　　5. Brush your teeth frequently, wash your hands frequently and take a bath frequently.

　　Brush your teeth in the morning and evening, and rinse your mouth after meals. For the elderly with dentures, brush them clean and soak them in cold water when not in use, and change your toothbrush every three months. Wash your hands and bathe frequently to resist the invasion of bacteria and enhance your resistance.

　　6, keep the stool unobstructed

　　Due to the continuous decline of physical function, the gastrointestinal peristalsis of the elderly will also be very obvious, often manifested as constipation. In view of constipation of the elderly, Luo Tianjiong suggested keeping the habit of regular defecation, drinking more water, not eating laxatives indiscriminately, or massaging the abdomen clockwise around the navel to relieve constipation.

　　7. Don’t stop drugs for chronic diseases.

　　Many elderly people think that chronic diseases such as hypertension and diabetes have no impact on their lives, so they choose to stop taking drugs, but they don’t know that stopping taking some drugs is likely to cause recurrence or "rebound" of the original diseases and even accidents. Luo Tianqiong stressed that if there is a need to stop taking drugs, you must first consult a doctor and gradually stop taking drugs under the guidance of a doctor.

　　8. Keep a good attitude

　　Luo Tianjiong reminded that emotional excitement and bad emotions will affect the physical and mental health of the elderly, keep a calm mind, communicate with people more, and avoid depression, anxiety and mood swings, especially patients with basic diseases such as hypertension, heart disease and cerebral infarction.

　　9. Strengthen self-health management.

　　Director Luo Tianqiong said that it is very necessary for the elderly to have a physical examination. It is necessary to actively prevent the occurrence and development of diseases, so as to achieve early detection, early diagnosis and early treatment. It is recommended that the elderly have a physical examination once a year, and people with basic diseases should have regular physical examinations on the advice of doctors, and be responsible for individuals and their lives.

　　　 Movie network news Compared with the dazzling skills, exaggeration and excessive changes in the adaptation of famous works in recent years, the 2012 editionGreat expectationsAppearing conservative and traditional, director mike newell shows the growth track of the protagonist Pip step by step according to the chronological order of the original works. However, it is an impossible task to include a literary masterpiece, especially an epic about growth and changes of the times, with the duration of a film. Expect again and again, but always get disappointed again and again. Perhaps, just as the upper class is to Pip, it is just an illusory dream to adapt the film without seeking transcendence but reaching the original.

　　　 Director Mike must have thought that all the audience had seen the original work, so he only chose a few important paragraphs, which also made the rhythm of the film very out of step, and the personality change and complicated relationship between the characters could not be explained clearly, leaving regrets. Pip’s way of growing up is actually to know love, money, class, humanity and redemption step by step. It is Dickens’ interpretation of all this, but every part of the story in the movie is missing something, and it is over before the climax, leaving only us off the screen, with an empty sense of nothingness to the subtitles. In the movie, Pip had an instant epiphany in the face of life changes and spiritual shocks, which saved all the entanglements and struggles, which made the embarrassment of being ridiculed, the pain of losing loved ones and the repentance of starting over not enough to touch people’s hearts and lose the power of the original text.

　　　 The swamp where the story begins and the countryside in Kent are quiet and beautiful, but the protagonist Pip’s shortness of breath and footsteps seem so uncoordinated. The sudden jump out of the prisoners hiding in the cemetery breaks this tranquility and changes Pip’s life from now on. Especially when I think back after I know the ending, I hope that time will pass slowly and then slowly. Even if I have a poor life and my sister’s beating and scolding, at least I have enough food and clothing and my brother-in-law’s protection. Just at that time, Pip didn’t know ordinary happiness. In front of the arrogant and beautiful noble lady, he just wanted to get into the upper class and exchange his "great future" for his sweetheart’s favor, but he didn’t know that such a future ruined his life. In his "ideal life", the narrow old streets of London make people feel bad, and the camera is aimed at the dirty mess in Little Britain. The so-called "great expectations" are also concentrated in exquisite and exaggerated aristocratic costumes and seemingly boring parties in the upper class. This irony should have been the protagonist’s experience after many experiences, but it is too superficial and deliberate in front of the camera.

　　　 Dickens wrote two endings for Great Expectations, which were originally gloomy and sad, but under the pressure of the publishing house, there was another happy ending as described in the film. The audience who like romantic love may applaud and believe that this is true love, but this love with too many impurities is hard to impress everyone. Director Mike and screenwriter david nicholls’s choice of ending is also doomed to lose the recognition of some audiences.

　　　 Fortunately, the restoration of the key points of the original, the exquisite dialogue, the retro British accent and the street view with a sense of the times, as well as the performances of Ralph Fiennes and helena carter, are enough to make this film qualify as a tribute to Dickens. In particular, Pip’s confession to Estella is a classic, which makes the listeners all moved. Ralph Fiennes’s appearance is not much, but it is one of the hidden main lines, and it is also the mainstay of this tome. Helena carter imitates tim burton’s "Corpse Bride" and the defeated "Queen of Spades". Although she occasionally feels a little jumpy, she still vividly displays the pale, thin, mysterious and weird image of a bad woman. Herbert, Pip’s good friend, is extremely dramatic in many supporting roles, even more vivid and lovely than Pip. No matter when he appeared as a child or grew up, he always brought people happy laughter, which also made the depressed story have a glimmer of light.

According to the Chinese Embassy in Britain, on March 22, 2021, the Chargé d ‘affaires of the Embassy in Britain, Yang Xiaoguang, successively received an exclusive interview with British Sky News, TV 4 and BBC, explaining China’s principled position on the sanctions imposed by the European Union and Britain on relevant institutions and personnel in China due to Xinjiang-related issues, and refuting wrong remarks. Sky News and TV 4 broadcast live reports, and BBC broadcast some interviews in the news program that night.

In response to the British Foreign Development Secretary’s announcement that Britain will impose sanctions on China officials and entities,Agent Yang said that Xinjiang affairs are entirely China’s internal affairs. Based on lies and false information, the British side imposed unilateral sanctions on individuals and entities in China on the pretext of human rights issues, ignored the facts, turned black and white, grossly interfered in China’s internal affairs, blatantly violated international law and the basic norms of international relations, and seriously damaged Sino-British relations. China expresses strong dissatisfaction and resolute opposition to this, and reserves the right to take corresponding countermeasures to safeguard China’s interests and dignity.

In response to China’s question about whether it was surprised by the British government’s decision,Deputy Yang said that China was not surprised, but deeply disappointed, and resolutely opposed this wrong decision. Sanctions will not only have no effect on China, but will make the people of China more united. The basic reaction I have heard is that Chinese officials who have been sanctioned are deeply honored to be able to defend national interests.

In response to the question whether China will take countermeasures against Britain,Agent Yang said that China does not take the initiative to provoke confrontation and attack others, but it will not be trampled upon by others and will resolutely fight back. China will not succumb to external pressure, and we should not underestimate our determination and confidence in safeguarding national sovereignty, security and development interests. China is carefully studying the British statement and will make an appropriate response in due course. China urges the British side to change its course in time, withdraw relevant wrong decisions, avoid damage to bilateral relations, and take effective measures to bring Sino-British relations back to the right track.

In response to the question that Xinjiang Education and Training Center is equivalent to a "concentration camp", China has carried out "genocide" and "forced labor" on Uighurs, forced sterilization on Uighur women and separated Uighur children from their parents, Agent Yang pointed out that China has repeatedly stated that there is no so-called "genocide", "forced labor" and "mass sterilization" in Xinjiang. These accusations against Xinjiang are groundless and "century lies". The so-called evidence hyped by the British media is completely malicious lies and false information, which has no credibility at all. The relevant pictures and videos are fabricated or taken out of context.

Agent Yang said that China’s establishment of the education and training center is a preventive anti-terrorism measure to educate and save those who are infected by extreme thoughts, involved in terrorism activities or seriously influenced by extreme thoughts and prevent them from going to terrorism. Facts have proved that this measure has effectively protected the life safety of people of all ethnic groups in Xinjiang, including Uighur compatriots, and also guaranteed the right of the students concerned to reunite with their families according to law. Students study the national common language, legal knowledge and vocational skills education and training in the teaching and training center. After graduation, they generally find suitable jobs and their living standards are improved.

Agent Yang said that cotton production in Xinjiang has been highly mechanized, and there is no need for a lot of manpower. Moreover, there are few job opportunities, high pay and fierce competition. Where is the need for forced labor?

Agent Yang said that the family planning policy is still the basic national policy of China, which is implemented nationwide, but it is more relaxed for ethnic minorities, including Uighurs. The accusations you mentioned are sheer nonsense.

Agent Yang pointed out that the pictures repeatedly broadcast by British TV programs are scenes of centralized transfer of prisoners in Xinjiang detention center, which has nothing to do with the teaching and training center. These prisoners are dangerous people suspected of breaking the law, so it is absolutely necessary to take security measures for them, and there is no abuse problem.

Agent Yang stressed that facts have repeatedly proved that the accusations against China are unfounded. In 2019, Xinjiang received more than 200 million Chinese and foreign tourists. If there are a lot of "torture" or "misconduct" in the local area, why is there no more evidence? In fact, China’s Xinjiang policy has been widely understood and supported internationally. At the 46th session of the United Nations Human Rights Council, 64 countries, including Arab countries, made a joint speech in support of China’s Xinjiang policy. We welcome more tourists from all over the world to visit Xinjiang after the COVID-19 epidemic, and believe that they can make correct judgments through what they have seen with their own eyes. What China has done in Xinjiang is frank and aboveboard, which can stand the test of history.

In response to a question about the nature of the Public Security Bureau of Xinjiang Production and Construction Corps, agent Yang said that the primary responsibility of the public security organs of Xinjiang Production and Construction Corps is to protect the lives and property safety and legitimate rights and interests of people of all ethnic groups, including Uighurs. Over the years, the public security organs of the Corps have cracked down on serious crimes such as terrorism according to law, which has been sincerely supported and generally supported by the local people of all ethnic groups.

In response to a question from the former US Secretary of State that China had put Uighurs in "concentration camps" and instilled communist party’s ideas and carried out "genocide", Agent Yang said that there was no "genocide" in Xinjiang. A century or two ago, the United States massacred Indians, and what they did was called "genocide."

On the question of whether China allows the United Nations High Commissioner for Human Rights to visit Xinjiang and whether foreign journalists are allowed to visit Xinjiang freely, Agent Yang said that China welcomes the United Nations High Commissioner for Human Rights to visit China and Xinjiang, and has kept close communication with the United Nations. The door of Xinjiang is open. We welcome people who are unbiased and really want to know about the development of Xinjiang to visit Xinjiang, but we firmly oppose any condescending presumption of guilt. According to the relevant regulations of China, foreign journalists can go to Xinjiang to report on the premise of abiding by the laws of China and fulfilling relevant procedures.

In response to a question about a British parliamentarian claiming that he was "harassed on the Internet by diplomats of the China Embassy", Agent Yang said that some British parliamentarians have repeatedly made false statements about Xinjiang on social media, and China diplomats have the right to clarify the truth and set the record straight. Members can make false statements, so we have no right to state the facts? Why do you say "harassment"?

On the question of whether "one country, two systems" in Hong Kong has become "one country, one system" and whether the Legislative Council of Hong Kong will become a "rubber stamp", Mr. Yang said that the China government has always fully and accurately implemented the policy of "one country, two systems", but "one country" is the prerequisite. After the storm of amending regulations, "one country" has been seriously impacted, and it is necessary to strengthen "one country" in order to better guarantee "two systems". What China has done is to ensure that "one country, two systems" is stable and far-reaching, and to ensure that the interests of the overwhelming majority of Hong Kong people are safeguarded. Members of the Legislative Council of Hong Kong come from all walks of life and are widely representative. In the future, there will still be many voices in the Hong Kong Legislative Council. On the premise of safeguarding national sovereignty and territorial integrity, members’ right to express their opinions is guaranteed.

(The original title is "The Chargé d ‘affaires of Yang Xiaoguang is interviewed by British Sky News, TV 4 and BBC")