In order to use coupons, users stay up late to order food and take out the "chaos" big three were interviewed.

  Recently, Didi, Meituan and Hungry successively joined Wuxi’s "Takeaway War", eating fried chicken at 0.01 yuan and drinking milk tea in 1 yuan … … On April 9, Didi Takeaway was officially launched in Wuxi, and the takeaway war intensified. On April 11th, the Industrial and Commercial Bureau of Wuxi City, Jiangsu Province officially talked about the take-out, hungry and drip take-out of the US group, and ordered the take-out platform to stop unfair competition and monopolistic behaviors such as "choose one from the other".

  "Fighting Wuxi"

  Is Didi Meituan hungry and staged "Three Kingdoms Kill"

  As early as April 1st, Didi, which is known for its Didi Chuxing, began to test its own Didi Chumai in Wuxi, which caused the industry to speculate that its involvement in the take-away market would cause the US group to fight back and be hungry, thus triggering a take-away market war. The trend in reality is also true. On April 9, this war, which was still in the stage of gaining momentum, was fully fired because Didi Takeaway announced the end of the test and officially landed in Wuxi. Didi and Meituan threw out a lot of coupons to attract consumers to place orders. Later that day, if you were hungry, you joined the fray, and coupons followed suit. For a time, people in Wuxi were shocked. A few dollars, a few cents or even a penny can be used to order takeout food for one person or several people at ordinary times. Ordering takeout seems to be free, and prices have returned to more than ten years ago overnight.

  "I feel sorry for myself if I don’t order takeout these days", "My friends from other places came to stay here for two days in order to order takeout" and "It’s too cheap, and it’s like missing hundreds of millions if I don’t order takeout" … … From noon on April 9th, the hottest topic of discussion in Wuxi’s circle of friends, Weibo and other social platforms was the "scuffle" of local take-away e-commerce delivering coupons. The strength and quantity of coupons offered in this "melee" are surprising. Just click on the coupon, and then the coupon will keep coming. Drip takeaway afternoon tea 20 yuan reduced 18 yuan, and the US group immediately released 20 yuan reduced 15 yuan … … Such a preferential margin has made netizens joke that they are almost guilty after the fishermen benefit. The amount of discount is really large. For example, some netizens exposed it, and the fruit tea coupons of 18 yuan money were directly offset, and only the delivery fee of 2.5 yuan was needed, which was equivalent to drinking a cup for free.

  [Take-out fever in the whole city]

  User: Staying up late to order food for using coupons.

  Many citizens stay up late to order takeout in order to use the valid take-out coupons for the day. "In order not to waste Didi’s good intentions, someone woke me up in the middle of the night and ordered two fried chicken, and sent two fried chicken for breakfast early in the morning." "In order not to waste the coupons of the US Mission, my husband woke me up in the middle of the night to drink porridge, eat shredded potatoes in vinegar, spiced quail eggs, and cold venetian blinds, so I felt queasy when I saw breakfast in the morning!" Mr. Wu, who usually goes to bed at 22 o’clock, doesn’t go to bed until 23 o’clock. "The chicken chops bought by Meituan are delivered home at 22 o’clock, and the watermelons bought by Hungry are delivered home at 22: 30. I don’t feel sleepy. I’m very happy. I’m sorry for the love of the takeaway platform for Wuxi people."

  However, some citizens stayed up all night in vain. Mr. Zhao, a citizen, placed an order at 2 o’clock in the morning and waited for more than an hour. The takeaway was not delivered at 3 o’clock, so he went to bed. "It’s terrible to explode the order. I will never do such a stupid thing again!" He said that he was speechless. The afternoon tea ordered by Miss Tao, a citizen, was not delivered after a whole day, and no one answered the customer service call. Not only was the coupon wasted, but it was also posted to 7.5 yuan.

  Express brother: there are not enough people in the field to help.

  In addition to the public’s taste of the sweetness of the price war, the takeaway brothers in Wuxi have been working hard these days, but they still earned a lot of money. Surprisingly, because take-away riders are in short supply, netizens exposed Suzhou riders pledging to come to Wuxi for help.

  "There are too many lists these days. I have to work more than 14 hours a day and don’t even have time to eat." Guo Jun, a takeaway brother, told reporters. According to Guo Jun’s introduction, he worked for nearly 15 hours on April 9, and sent 60 takeaways, with a commission of nearly 1,100 yuan. "These days, the daily income is above 1000 yuan. Although I am particularly tired, I am willing to earn money."

  Due to too many orders, the local takeaway brothers in Wuxi are not enough. The takeaway brothers in Suzhou and Changzhou all rushed to Wuxi for support. "I have several takeaway peers in Suzhou and Changzhou, and I have temporarily worked in Wuxi these days because I earned more. Some of them can deliver nearly 100 orders a day, and the income exceeds 2,000 yuan." Guo Jun added.

  Merchant: The order burst and can’t be answered any more.

  At 6 o’clock on the morning of the 9th, a rice ball shop in Hekoukou opened for business. By 9 o’clock, more than 130 drip orders had been received. "It is several times as usual, and it has exploded." The store owner told the reporter that five or six drip riders came to wait for the order at the same time, because there was no time to do it, and more than 30 orders could only be cancelled. The boss’s mood is mixed: "On the one hand, the platform discount brings us a lot of business, but we are also afraid that there will be omissions in the service after the explosion, and we are worried that there will be customer loss."

  [market supervision]

  Urgent interview suspected of unfair competition

  Amid the cheers for big discounts, some netizens pointed out that there are worries in the war: the delivery of take-away food is difficult to be timely, the quantity and quality of take-away food given by merchants are poor, the traffic and environmental problems caused by the increase of take-away, and whether the take-away market will form a retaliatory rebound of monopoly giants in the future.

  This war has attracted the attention of the national industry. Has it affected the market order?

  On the morning of April 11th, Wuxi Industrial and Commercial Bureau talked about Didi, Meituan and Hungry.

  It is reported that Wuxi Industrial and Commercial Bureau has inspected the branches of three take-away service platforms in Wuxi and collected relevant evidence. According to the industry and commerce department, the preliminary investigation shows that the behavior of the relevant take-away service platform has been suspected of constituting unfair competition and monopolistic business behavior. These disorderly competition behaviors have had adverse effects on Wuxi’s market environment, business environment and consumption environment. Wuxi Industrial and Commercial Bureau ordered the relevant platform operators to immediately take the following measures to eliminate the adverse consequences: First, immediately stop the illegal acts suspected of unfair competition and monopoly to prevent the damage from continuing to expand. Second, actively assist and cooperate with law enforcement agencies to carry out relevant law enforcement investigations and provide relevant information or information truthfully. The third is to quickly carry out self-examination and self-correction of business practices, and actively correct other business practices that may affect the market operation order and infringe on the legitimate rights and interests of consumers, such as false propaganda and consumer fraud.

  Operators stand by the market order.

  In response to the interview with the Trade and Industry Bureau, Didi Takeaway said that unfair competition is to quench thirst by drinking poison, resolutely support the government to safeguard the legitimate rights and interests of businesses, and resist unfair competition.

  Hungry? It is said that the "red envelope for meals" is aimed at providing tangible benefits to consumers nationwide, and it is also one of the services provided to consumers around the core demand of "eating" after integrating into Ali’s new retail system. It is not the so-called "subsidy war". "We wholeheartedly support the government’s requirements for regulating market competition."

  The US delegation said: "The takeaway industry has always been a market with two or three online platforms and full healthy competition. Recently, due to a friend’s huge subsidy that does not conform to market rules, local irrational consumer orders in Wuxi have increased significantly. " In order to ensure the user experience of the platform, combined with the comprehensive indicators such as complaint rate, meal delivery speed and evaluation, Meituan suspended the services of some merchants, and at the same time added a number of merchants who could provide quality services.

  Comprehensive Jiangnan Evening News Yangzi Evening News Wuxi Daily national business daily

The General Administration of Customs released ten typical cases of cracking down on smuggling in 2020.

  Xinhua News Agency, Beijing, January 21st (Reporter Liu Hongxia) On the 21st, the General Administration of Customs released ten typical cases of cracking down on smuggling in 2020, involving "foreign garbage", ivory and other endangered species and their products, guns and drugs, refined oil and many other aspects. According to statistics, the Customs has filed a total of 4,061 cases of smuggling crimes, including 2,322 tax-related cases with a case value of 92.73 billion yuan. There were 1739 non-tax-related cases.

  1. Tianjin Customs Anti-smuggling Bureau investigated the "Mission 2003" waste smuggling case.

  On May 28th, 2020, the Anti-smuggling Bureau of Tianjin Customs dispatched 50 police officers in the first round of the "Blue Sky 2020" special action of the General Administration of Customs to carry out the centralized arrest operation of the "Mission 2003" waste smuggling case, arrested 3 suspects and seized 498,000 tons of solid waste prohibited by the state. After investigation, from November 2019 to April 2020, the criminal suspects smuggled a large number of waste slag into the country by means of false reporting for profit.

  Two, Nanning Customs Anti-smuggling Bureau to investigate the "Guardian 2020" series of cases to combat the smuggling of live pangolins.

  From October 12 to November 25, 2020, the Anti-smuggling Bureau of Nanning Customs, together with the Public Security Department of Guangxi Zhuang Autonomous Region and the Public Security Bureau of Nanning, launched a special campaign to crack down on smuggling pangolins. Five smuggling criminal gangs were destroyed, 18 suspects were arrested, 58 live pangolins, 22 frozen bodies and 125.3 kilograms of scales were seized, and 23 smuggled pangolins were verified. After investigation, the smuggling gangs ordered live pangolins and pangolin scales abroad, smuggled them into the country through non-customs places in China and Vietnam, and then transported them to Guangdong, Guangxi and other places for sale and profit through cars.

  3. The Anti-smuggling Bureau of Jiangmen Customs investigated the case of "SY730" smuggling gelatin of grouper.

  On August 2, 2020, the Anti-smuggling Bureau of Jiangmen Customs, with the cooperation of local public security organs, launched the "SY730" campaign to crack down on the smuggling of gelatin from rockfish, dispatched 50 police officers, carried out investigations and arrests in Jiangmen, Shenzhen, Maoming and other places in Guangdong, arrested 6 suspects, destroyed 2 smuggling criminal gangs, and seized 288 gelatin from rockfish suspected of smuggling on the spot. In the whole case, 3,602 pieces of gelatin were smuggled, with a case value of about 300 million yuan. After investigation, the smuggling gangs purchased the gelatin from overseas, shipped it to Hong Kong or Vietnam, and then smuggled it into the country by express delivery or non-customs smuggling on the Sino-Vietnamese border.

  Four, Fuzhou Customs Anti-smuggling Bureau "stop -06" land and sea joint action to crack down on refined oil smuggling.

  On September 17th, 2020, Fuzhou Customs Anti-smuggling Bureau and Fujian Marine Police Bureau, with the cooperation of Xiamen, Chengdu, Wuhan Customs Anti-smuggling Bureau and Fuzhou Public Security Bureau, launched the "Stop -06" land-sea joint action to crack down on refined oil smuggling, dispatched more than 200 police officers, arrested 43 suspects, seized one oil depot involved, seized 7 ships involved, and was suspected of smuggling about 600 tons of refined oil. The case was worth about 1.3 billion yuan, and it was verified that the smuggled imported refined oil involved was about 250,000 tons. After investigation, the smuggling gangs involved smuggled the refined oil into the country by sea smuggling and sold it to Fujian, Zhejiang and other places in China.

  Five, Shenzhen, Shanghai, Nanjing and other customs anti-smuggling bureaus investigated the "8.04" crackdown on diamond smuggling.

  On September 1, 2020, 10 anti-smuggling bureaus directly under the Customs, including Shenzhen, Shanghai, Hangzhou, Beijing, Harbin, Nanjing, Xiamen, Wuhan, Guangzhou and Chengdu, with the support and cooperation of public security organs in many places, launched the "8.04" centralized anti-diamond smuggling operation in more than 20 cities, including Shenzhen, Shanghai and Hangzhou, and dispatched more than 1,000 police officers and arrested 1 suspect. After investigation, the smuggling gangs involved smuggled diamonds and other items from Shenzhen Port by means of "water passengers" and vehicles in Guangdong and Hong Kong, hiding people and hiding means of transport.

  Six, Wuhan and other Customs Anti-smuggling Bureau "9.21" special action to crack down on cross-border e-commerce channel smuggling.

  On September 21st, 2020, Wuhan Customs Anti-smuggling Bureau, together with five customs anti-smuggling bureaus directly under Shenzhen, Guangzhou, Tianjin, Xiamen and Harbin, dispatched more than 530 police officers, and simultaneously launched the "9.21" joint special campaign against cross-border e-commerce channel smuggling in Hubei, Tianjin, Jiangxi, Guangdong, Heilongjiang, Fujian and other places, destroying 15 smuggling gangs and arresting 58 suspects, with a case value of 100 yuan. After investigation, from May 2019 to the incident, a cross-border e-commerce platform company in Wuhan falsely reported cosmetics, milk powder, red wine and other goods imported by general trade as cross-border e-commerce, and substantially understated the price of goods.

  Seven, Guangzhou Customs Anti-smuggling Bureau to investigate the "Fighting 33" smuggling gun case.

  On October 22, 2020, the Anti-smuggling Bureau of Guangzhou Customs launched the "Fighting 33" special campaign to crack down on gun smuggling, dispatched 20 police officers, carried out unified investigation and arrest operations in Guangzhou, Quanzhou and other places, arrested 3 suspects and seized 21 pneumatic guns on the spot. After investigation, from July 2020 to the time of the crime, the criminal suspect commissioned a purchasing agent to buy pneumatic guns in Hong Kong, then dismantled the guns and hid them in food packaging, and smuggled them into the country in batches through postal channels.

  Eight, Qingdao Customs Anti-smuggling Bureau to investigate the "6.11" smuggling of drugs.

  On June 11th, 2020, the Anti-smuggling Bureau of Qingdao Customs filed a case to investigate the "6.11" smuggling of drug-making articles, arrested three suspects and seized 12 tons of smuggled acetic anhydride. After investigation, the criminal suspect, in collaboration with overseas personnel, illegally purchased acetic anhydride, the second kind of precursor chemical controlled by the state, and then falsely reported it to the customs for smuggling under the names of wall coating and coating thinner.

  Nine, Gongbei, Nanning, Kunming and other customs anti-smuggling bureaus "903" to crack down on fruit smuggling in border trade channels and collect the net.

  On October 20, 2020, the anti-smuggling bureaus of Gongbei, Nanning, Kunming, Changsha, Shenzhen, Chengdu, Guiyang, Guangzhou and Chongqing launched the "903" campaign to crack down on fruit smuggling in border trade channels in Guangxi, Yunnan, Chongqing, Guangdong, Hunan, Sichuan and Guizhou, arresting 81 smuggling suspects and destroying 25 smuggling gangs. After investigation, from 2017 to the incident, the gangs involved smuggled longan, pitaya and other fruits produced in Thailand and Vietnam into the country through the border land ports in Nanning and Kunming customs areas, adopting general trade and small-scale border trade to understate the price, and border trade to falsely report the nature of trade.

  Ten, Huangpu Customs Anti-smuggling Bureau "HP2020-10" special action to combat the smuggling of frozen products.

  On September 3, 2020, Huangpu Customs Anti-smuggling Bureau, with the assistance of Guangzhou, Shenzhen, Hefei, Shanghai and Hangzhou Customs Anti-smuggling Bureaus and public security organs in Dongguan, Hefei, Shanghai and Taizhou, launched the "HP2020-10" special campaign to crack down on the smuggling of frozen products, dispatched 320 police officers, and carried out unified investigations and arrests in Guangzhou, Shenzhen, Hefei, Shanghai and Taizhou, and captured them. After investigation, the smuggling gangs ordered frozen products such as beef, chicken wings and pig offal from overseas suppliers, and smuggled them into Guangzhou, Shenzhen and other ports at low prices. After customs clearance, they transported the smuggled goods to Dongguan, Taizhou and other places for sale.

Where does the "retirement tide" come from?

  The development of photovoltaic industry in China has a history of more than 10 years. In recent years, with the upgrading of photovoltaic module products and the gradual expiration of the life of some modules, the "retirement tide" of photovoltaic modules is accelerating. How to deal with the massive waste photovoltaic modules? Where did they flow? Has the "last mile" of photovoltaic module recycling and recycling industry chain been opened?

  Wide market development space

  "Last year, only 1,000 tons of waste photovoltaic modules were recycled, and at most 5,000 tons were recycled this year. However, compared with the processing capacity of 20,000 tons at full load, raw material recycling has been in short supply." When interviewed by some waste photovoltaic module recycling enterprises in Jiangsu, the reporter heard the most that the supply of goods was not easy to find and the enterprises were "not enough to eat".

  Jiangsu Changzhou Ruisai Environmental Protection Technology Co., Ltd. is the first private scientific and technological enterprise specializing in the dismantling technology of scrapped photovoltaic modules in China. The enterprise has participated in the formulation of almost all standards of photovoltaic recycling industry, but the recycling business of the company’s scrapped photovoltaic modules has not been large. During this time, Zhuang Huliang, the company’s deputy general manager, has been calling for establishing and improving the entry threshold and industry norms for photovoltaic module recycling and reuse.

  "The main components of photovoltaic modules, such as glass, aluminum frame, welding tape and battery chips, are all recyclable resources. Waste photovoltaic modules can be dismantled by physical methods, chemical methods, pyrolysis methods and other technical paths, but at the same time each method will have different ‘ Three wastes ’ Produce. If the used photovoltaic modules do not flow to the formal disposal and utilization units, it will not only be detrimental to the recycling of resources, but also cause greater environmental pollution hazards. " Zhuang Huliang said that in the early stage of its development, the emerging solid waste recycling industry will have a period of disorderly competition, and the photovoltaic recycling industry is no exception. But obviously, the shorter the disorderly competition period, the more favorable it is for the high-quality development of the photovoltaic recycling industry, and the smaller the negative impact on the ecological environment. Only by recycling waste photovoltaic modules and utilizing this "last mile" mark of photovoltaic industry chain can we truly realize the green closed-loop and high-quality recycling of photovoltaic industry.

  The service life of solar photovoltaic modules can generally reach more than 25 years. At present, photovoltaic technology is developing rapidly, and many owners of photovoltaic power generation projects are considering replacing photovoltaic modules with higher conversion efficiency in advance (the power generation of products with the same area in 2023 is about twice that of products in 2008).

  In the field of photovoltaic module recycling, Jiangsu is very representative. Fan Guoyuan, secretary-general of Jiangsu Photovoltaic Industry Association, said that the world’s photovoltaics look at China and China’s photovoltaics look at Jiangsu. China is one of the countries that developed the photovoltaic industry earlier in the world. As early as 2009, Jiangsu introduced the photovoltaic power generation support policy and started the construction of photovoltaic power plants. At present, the total installed capacity is close to 30GW, ranking first in the country. With the passage of the service life of photovoltaic panels and the iterative upgrading of new products, Jiangsu will usher in the "iterative tide" of photovoltaic panels around 2025 and the "retirement tide" after 2030.

  "At present, the volume of waste photovoltaic modules on the market is gradually increasing, and the recycling of photovoltaic modules will become the next blue ocean in the field of new energy. However, the photovoltaic module recycling track has not released much market dividend, because a considerable number of waste photovoltaic modules have not entered the compliance enterprises for recycling, decomposition and reuse." Fan Guoyuan said that there are three conventional disposal methods for waste photovoltaic modules: one is to use them after degradation or repair; Second, the valuable part is extracted by disassembly, and the rest is discarded, but it will have adverse effects on the environment; Third, entrust a professional component recycling enterprise with professional environmental protection qualification to extract aluminum, silver, silicon and glass by scientific and technological means for recycling. Among them, the use of scientific and technological means is the most green and low-carbon scientific method for recycling waste photovoltaic modules.

  The recovery treatment pressure is high.

  "We found that waste photovoltaic modules mainly flow to small workshops such as small and micro enterprises and self-employed. They disassemble and sell valuable parts such as aluminum alloys, and the rest are disposed of by stacking, landfill or incineration, with little environmental cost." Zhangxin, R&D director of Yicheng Xinneng (Suzhou) Technology Co., Ltd., which specializes in developing complete solutions for recycling used photovoltaic modules, found that many small workshops are very attractive in the recycling price of used photovoltaic modules because there is no environmental protection treatment.

  Zhangxin calculated an account for the reporter, because silver can be extracted from waste photovoltaic modules, the recycling price of a piece of waste photovoltaic modules with aluminum alloy frame has surpassed that of 55 yuan, and the recycling cost will rise to more than 80 yuan, and the recycling price of a ton of waste photovoltaic modules with frames has soared to 3,000 yuan, far exceeding the affordability of enterprises. "The extensive refining method of small workshops does not consider environmental protection costs at all, so there is still room for profit. In contrast, if regular enterprises recycle at this price, they will lose 100%." Zhangxin said.

  "Photovoltaic module waste contains valuable resources such as silicon, silver and copper, as well as harmful substances such as lead, antimony, cadmium and fluorine. Extensive incineration and stacking will not only reuse some valuable resources, but also have a harmful impact on the environment. " Fan Guoyuan said that the extensive recycling model not only caused serious pollution to the environment, but also caused bad money to drive out good money. The reason for this situation is that the definition of the nature of waste photovoltaic modules is not clear. During the recycling process from scrapping to dismantling, decomposition and reuse, there are many gaps in technology, standards and management policies, and there is a lack of restrictions on policies and standards. At the same time, the business model of waste photovoltaic modules is not mature, which hinders the healthy development of photovoltaic industry.

  According to the forecast of China Photovoltaic Industry Association, by 2025, the total number of retired photovoltaic modules in China will reach about 9GW, and the number of retired modules will exceed 2.7GW; in that year; From 2030, the amount of retired photovoltaic modules will increase rapidly, and the retired photovoltaic modules will reach 15GW in that year, and will reach the peak for the first time in 2034. A blue ocean market for recycling waste photovoltaic modules with a level of 100 billion yuan is accelerating.

  Zhangqin, a professor at the School of Economics and Management of Nanjing University of Aeronautics and Astronautics who has been engaged in research on the development of photovoltaic industry all the year round, said in an interview that most of the materials of used photovoltaic modules can be recycled, which is a huge emerging market, but the market is still in the primary development stage, and problems such as access threshold and imperfect industry norms need to be solved urgently.

  The policy system needs to be improved

  In January this year, the Ministry of Industry and Information Technology and other six departments issued the "Guiding Opinions on Promoting the Development of Energy Electronics Industry", further demanding that the traceability system of photovoltaic supply chain be accelerated, and emphasizing the promotion of R&D and industrial application of photovoltaic module recycling technology. The Case Interpretation of the Implementation Plan for Promoting the High-quality Development of New Energy in the New Era recently issued by the National Energy Administration also proposes to vigorously promote the development of retired wind turbines, photovoltaic module recycling technology and related industrial chains.

  "At the policy level, more and more attention has been paid to the recycling of photovoltaic modules, and the pace of formulating special policies for the recycling of used photovoltaic modules is gradually accelerating. At present, the Jiangsu Photovoltaic Industry Association is entrusted by the Jiangsu Provincial Department of Industry and Information Technology to carry out research projects on the recycling, utilization and countermeasures of solar photovoltaic modules, focusing on the recycling technology and policies of photovoltaic waste components, so as to protect the healthy development of the photovoltaic industry in Jiangsu. " Fan Guoyuan said.

  Driven by the goal of "double carbon", green and low-carbon circular economy has become an important strategy for China’s economic and social development, and the recovery and treatment of waste photovoltaic modules is an important part of the development of circular economy in photovoltaic industry.

  Zhuang Huliang said that after years of scientific research, development and innovation accumulation, the company has reserved a number of technologies, and participated in the formulation of the national standard "Physical Law on Recycling Methods of Crystalline Silicon Photovoltaic Modules", the group standard "Guide to Scrapping of Crystalline Silicon Photovoltaic Modules" and "Accounting for Carbon Emissions from Recycling and Utilization of Retired Photovoltaic Modules". I believe that with the unification of industry standards, enterprises will contribute more to the green closed-loop and high-quality recycling development of photovoltaic new energy industry.

  "With the increasing volume of the photovoltaic module recycling market, photovoltaic recycling should be included in the overall planning of resource recycling and new energy industry development, and the system of photovoltaic module recycling standard system, responsible subject and production responsibility should be established and improved." Zhangqin suggested that at present, with the development of digital technology in full swing, photovoltaic module recycling should build a photovoltaic module recycling network platform through digital means, improve the traceability of photovoltaic module recycling, realize the whole process tracking from production to recycling, and use "internet plus" to help the healthy and orderly development of photovoltaic recycling industry. Promote the formation of a market order led by the government and the responsibility of enterprises, extend the social responsibility chain of photovoltaic enterprises, establish a subsidy mechanism for the development of photovoltaic module recycling industry, and improve the enthusiasm of enterprises to participate in photovoltaic module recycling.

"I know U" is the first social film, and netizens are widely "recreated"


Zhou Xun


Jing Bo Ran
 

    A new network short film form starring Peng Haoxiang, Xia Yongkang, Zhou Xun and Jing Bo Ran — — Social film《I know U》Since it was released for a week, it has been popular among netizens, with tens of millions of hits and constant topics. In addition to the strong creative lineup, this new interactive short film form, which opens a new era of micro-movies and can be edited and matched by netizens themselves, is also one of the most attractive elements. Netizens have shown strong enthusiasm for this and created various versions for sharing.

    On the internet, the highlights of the film are divided into several segments, which can be edited at will with a click of the mouse. The soundtrack is also divided into several segments that can be re-added according to the content made by netizens, and all the lines and dialogues are also left blank and can be edited at will. Various versions such as "Northeast Dialect Edition", "Earth Edition on the Tip of the Tongue" and "Horror Edition" show the strong imagination and enthusiasm of netizens. The top lineups of Zhou Xun and Jing Bo Ran have also made netizens have a "director addiction", and fans are excited to say that "lines can be changed at will, which gives us a sufficient reason to daydream!" Peng Haoxiang, the producer, once said, "I hope netizens can expand their imagination, and I’m afraid it won’t look good if I’m not afraid of spoofing" to encourage netizens to do more creation.

    In this regard, the industry has generally reached a consensus that the creation of "social movies" has made both movies and micro-movies return from the irreversible single communication between creators and audiences to the "grassroots" experience that can truly interact and everyone can participate. It is a brand-new low-threshold, simplified and extensive way of "micro-marketing", which will surely lead a new generation of trends.

Little Goose Tong completed the $120 million Series D financing, which will increase research and development to help enterprises connect with users.

The Beijing News (Reporter Feng Qi) On June 16th, the reporter was informed that Little Goose Tong, a knowledge-based payment technology service provider, announced that it had recently completed a series D financing of $120 million, which was led by IDG Capital, followed by Qiming Venture Capital, GGV ggv capital and Gaoying Venture Capital.
The relevant person in charge of Little Goose Tong said that this round of financing will be mainly used to continue to increase investment in research and development of products and core technologies, strengthen the construction of production, research, operation and service teams, and further improve the construction of service system.
Product matrix meets the diverse needs of private domain operation
At present, more and more enterprises choose to build private domain traffic pools in the WeChat ecosystem. After completing this link, how to effectively connect users, realize accurate communication and transformation, and turn "flow" into "retention"?
The relevant person in charge of Little Goose Tong pointed out that it is very necessary to create valuable content for users, attract consumers and educate consumers, which is also the core link of private domain operation of enterprises.
It is understood that Goose Tong owns a variety of tools and products such as knowledge shops, enterprise live broadcasts, enterprise training, enterprise micro-assistant SCRM, goose punching, goose examination, goose community, etc., providing one-stop technical services for enterprises with online operation, commercial realization, private domain operation and user service needs.
Among them, the knowledge store is the core product of Goose Tong, which meets the needs of various scenarios such as brand marketing, commercial realization and user operation of enterprises in various industries. Enterprises can deposit brand content with the help of knowledge stores’ graphic, audio, video, live broadcast, e-books, columns, training camps and other forms of content bearing, and use fission posters, coupons, groups, promoters and other social fission marketing games to turn each user into a contact point for promotion and spread, and expand brand influence. In addition, the knowledge store supports the functions of information collection and data analysis, which can quickly build the user portrait of the enterprise and realize the whole process management and promotion of the user life cycle.
Product system of gostone. Photo courtesy of respondents
It is worth noting that in order to lower the threshold of digitalization of enterprise users, Goose Tong has developed a series of product tools that are lighter and more focused on usage scenarios, such as enterprise live broadcast, enterprise training, enterprise micro-assistants and so on.
For example, the live broadcast product of Goose Tong Enterprise has a series of functional modules, such as continuous wheat interaction, live broadcast with goods, live broadcast lottery, broadcast reminder, information collection, live broadcast index analysis, etc., to meet various scenarios such as live broadcast with goods, round table meetings, brand activities, etc. Enterprise training products rely on the enterprise WeChat ecosystem to help enterprises solve the problem of improving people’s management and efficiency in the communication path; Enterprise micro-assistant SCRM can help businesses make better use of enterprise WeChat, and systematically operate and serve users who have settled down.
In addition, small program tools such as Goose Punch, Goose Exam and Goose Community can also enable enterprises and users to conveniently complete more operations on the mobile side. These digital services provided for enterprises and users around knowledge content have attracted a large number of enterprises to choose Little Goose Connect.
Live broadcast to raise demand, open a housekeeper group and pay attention to customer satisfaction.
The reporter learned that in addition to technical empowerment, Goose Tong has also built 1V1 housekeeper group service covering the whole life cycle of customers. Goose Tong Service Manager will provide a series of targeted and systematic professional guidance and suggestions, such as novice training camp guidance services and advanced systematic operation suggestions, based on the actual situation of customers, from delivery period, growth period to maturity period.
It is reported that in order to further understand the customer’s usage scenarios, Goose Tong has also set up a localization service team to communicate with customers face to face on product requirements, solve practical problems on the spot, and make regular follow-up visits to jointly create targeted solutions.
In addition, in order to get the most authentic feedback from customers, Goose Tong uses the live broadcast function to open multiple live broadcast columns. For example, in the column "Come and Give Demand to Lao Bao", CEO Bao Chunjian led the heads of various product lines of the company to communicate with customers in real time and solve customer problems; In the column of "Lao Bao’s dialogue with benchmark customers", Bao Chunjian invited benchmark customers to the live broadcast room to share their operation methodology and interact with the audience to help more corporate customers improve their operation level.
Goose Pass has set up several live broadcast columns. Photo courtesy of respondents
At the same time, Goose Tong has set up televisions in every corner of the company to broadcast the contents of the live broadcast room in real time, so that the voice of customers can be transmitted to thousands of employees at the same time. "This way is more like opening a’ transparent window’. In addition to solving the needs of corporate customers, we can also learn about the service process from customer feedback and play a supervisory role in the company’s service system." The relevant person in charge of Little Goose Tong said.
Fan Xiaoxing, COO of Goose Tong, said: "In the future, Goose Tong will continue to strengthen product research and development, enhance service capabilities, expand service scenarios, be a good’ shared CTO’ for everyone, and build a bridge between enterprises and users."
According to the data of Little Goose Pass, as of June 10th, 2021, Little Goose Pass has served more than 1.6 million registered customers, including many first-line famous brands such as Wu Xiaobo Channel, Ten Reading, New Oriental, Good Future, Huaxia Fund, Caesars Travel, Xibei and Tencent University. Customers have produced 20 million knowledge products, covering 780 million end users, and the highest number of online users exceeds 10 million.
Beijing News reporter Feng Qi proofreads Li Shihui.
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The first observation, General Secretary Three, went to the community this time to investigate the old-age care work.

  Recently, during his inspection tour in Chengde City, Hebei Province, General Secretary of the Supreme Leader came to Binhe Community Home Care Service Center in High-tech Zone to conduct on-the-spot research on old-age care services.

  Coping with the aging population, achieving a good sense of security for the elderly and promoting the healthy development of the old-age care industry are all important tasks that General Secretary Supreme Leader pays attention to.

  In February, the 28th collective study in the Political Bureau of the Communist Party of China (CPC) Central Committee, from the perspective of promoting the high-quality and sustainable development of social security, studied a series of major issues, including the old-age insurance system, developing social welfare undertakings such as providing for the aged, and improving the care service system for the elderly.

  In May, the Political Bureau of the Central Committee listened to a report on major policy measures to actively respond to population aging during the 14th Five-Year Plan period.

  In July, the Decision of the Central Committee of the Communist Party of China and the State Council on Optimizing the Birth Policy to Promote the Long-term Balanced Development of the Population was released. This is regarded as an important document to actively respond to aging and promote long-term balanced population development.

  In August, I went to Chengde and specially arranged to inspect the community pension work.

  This is the afternoon of August 24th, when the Supreme Leader visited Binhe Community in Chengde High-tech Zone, he had a cordial exchange with the community residents. Xinhua News Agency reporter Li Xueren photo

  At present, the population aged 60 and over in China exceeds 260 million. The relevant departments predict that during the "14th Five-Year Plan" period, the elderly population in China will exceed 300 million.

  In the "Fourteenth Five-Year Plan" proposal deliberated and adopted by the Fifth Plenary Session of the 19th CPC Central Committee, "implementing the national strategy of actively responding to population aging" was listed out of the health field for the first time.

  "Actively responding to the aging population is related to national development and people’s livelihood, and is an important measure to achieve high-quality economic development and safeguard national security and social stability." The the Political Bureau of the Communist Party of China (CPC) Central Committee Conference held in May this year pointed out the practical significance of actively responding to the aging population.

  The aging of the population is both a challenge and an opportunity for economic and social development. According to the prediction of relevant experts, the investment scale of "silver-haired economy" will be further expanded during the "14th Five-Year Plan" period, and the consumption of the elderly will continue in generate. Therefore, it is necessary to promote the coordinated development of the old-age care cause and the old-age care industry, further tap the potential of the "silver-haired economy" and cultivate and develop new economic kinetic energy.

  In the Home Care Service Center of Binhe Community in Chengde High-tech Zone, the General Secretary of the Supreme Leader inspected the information platform, aging renovation and other projects, and asked in detail about the service scope and rescue methods.

  This is the afternoon of August 24th, when the Supreme Leader visited the Home Care Service Center of Binhe Community in Chengde High-tech Zone to see the aging renovation and other projects. Xinhua News Agency reporter Li Xueren photo

  Perfecting the old-age service system is a key measure to deal with the aging population. The outline of the "14th Five-Year Plan" proposes a number of measures, including "integrating and utilizing existing resources to develop embedded community-based old-age care" and "actively developing rural mutual-help happy homes and other mutual-help old-age care".

  According to the survey, more than 90% of the elderly in China tend to care for the elderly at home. Embedding high-quality, professional resources for the aged in the community to meet the needs of the elderly who care for the aged at home to enjoy high-quality services without leaving the community will not only help reduce the cost of providing for the aged, but also benefit more elderly people with high-quality services for the aged.

  During this inspection, the General Secretary emphasized that "the community home care service network should be improved, and an old-age care service system should be built with the coordination of home community institutions and the combination of medical care and health care", which pointed out the direction for the development of China’s characteristic old-age care service system.

  On the afternoon of August 24th, the Supreme Leader had a cordial conversation with the elderly volunteers at the Binhe Community Home Care Service Center in Chengde High-tech Zone. Xinhua News Agency reporter Shen Hongshe

  For the elderly, a happy old age cannot be separated from the material guarantee of "a sense of security for the elderly", but also the spiritual pursuit of "a sense of worthiness for the elderly". Only by meeting the needs of the elderly in many aspects can they enjoy a happy and happy old age.

  "It is necessary to combine the old age with the old age, study and improve policies and measures, encourage the elderly to continue to shine, give full play to the role of the younger elderly, and promote volunteers to do more in community governance." The words of the Supreme Leader General Secretary have warmed the hearts of the elderly.

  Producer: Zhao Cheng

  Planning: Huo Xiaoguang

  Lead writers: Gao Lei, Huang Yue

  Coordinator: Zhang Xiaosong, Huang Quanquan, Zou Peiyan and Wang Xuan.

  Visual Editor: Tang Xing, Zhu Gaoxiang

  Xinhua News Agency produced domestically.

  Produced by the first studio of Xinhua News Agency

Wuling’s various national six B models are on sale for 34,800 yuan.

  [Aika car listed new car original]

  On March 9, 28 national six B models of SAIC-GM-Wuling were listed.The price range is 34,800-74,900 yuan.. It is reported that this time, a variety of power sources including Wuling brands 1.2L, 1.5L and 1.5T are involved, covering a variety of vehicles including Wuling Light, Wuling Light Truck, wuling glory S, wuling glory Truck and Wuling Hongguang S.

 

Wuling

  According to our understanding, in terms of comfort configuration, wuling glory pickup, wuling glory S and wuling glory Extended Edition are equipped with central locking, remote control key, electric windows and EPS electric power steering system. In terms of safety configuration, wuling glory V, Wuling Hongguang V, Wuling Hongguang S, New Wuling Hongguang S and Wuling Hongguang S3 are equipped with tire pressure monitoring, which can check the tire pressure status at any time and grasp the vehicle information in time.

Wuling

Wuling

  In the power system, this 1.2L naturally aspirated engine has undergone more than 10 technical upgrades, and the maximum torque can reach 112Nm at 3000rpm, which fully meets the daily travel and heavy cargo transportation needs of users. While ensuring the original economy, the emission is lower, giving consideration to power output and economic fuel consumption.

Wonderful content review:

The production capacity will be greatly improved, and the "Wuling brand" mask machine will be off the assembly line.

Carry out online marketing Wuling pushes the new policy of buying cars during the epidemic.

The daily output is 1.7 million masks produced by SAIC-GM-Wuling.

Xiaomi seems to be playing with a very new ecology.

Xiaomi, who called for an open ecology, has made a "big job" this time.

 

On the evening of October 29th, Xiaomi held a new product launch conference, including the annual flagship model Xiaomi 15 series, the production version of Xiaomi SU7 Ultra, and a number of Xiaomi ecological products.

 

In more than 160 minutes, Xiaomi gave a long explanation on the update of various product lines in the ecological chain, and just as the audience’s patience was exhausted, Xiaomi SU7 Ultra, who won the title of "the fastest four-door car on the surface" in Newbei not long ago, came to the finale, which pushed the conference atmosphere to a climax instantly.

 

However, although Xiaomi SU7 Ultra made other products a supporting role, throughout the whole conference, there was an upgrade that still surprised the author-the OS 2.0 system.

 

To be precise, it is the HyperConnect function on 澎湃 OS 2.0.

 

Like the mainstream thinking in the industry at present, 澎湃 OS is a system based on AOSP (Android Open Source Project), and Xiaomi officially does not shy away from this point, emphasizing the compatibility brought by distributed collaborative computing outside the Android framework.

 

By version 2.0, this compatibility even extended to the Mac across the end and ecology.

 

According to Jin Fan, vice president of mobile phone department of Xiaomi Group, Xiaomi HyperConnect function will fully support Apple devices. On the 澎湃 OS 2.0 system, Xiaomi mobile phone can realize file transfer with iPhone, iPad and Mac, and at the same time support viewing documents in Apple’s exclusive format such as Keynote and Pages on Xiaomi devices.

 

What’s more exaggerated is that HyperConnect also supports the use of "Xiaomi Miao Xiang Desktop" on the Mac, that is, mirroring and controlling the Xiaomi mobile phone on the Mac.

 

At a time when terminal manufacturers generally emphasize the ecological closed-loop experience, Xiaomi has started an attempt called "ecological integration".

 

 Why "hug Apple"?

 

"Among Xiaomi users, more and more people choose to hold both Apple and Xiaomi (equipment)." At the press conference, Jin Fan explained that OS 2.0 supports Apple devices.

 

In fact, Xiaomi’s "openness" to Apple has long been a clue.

 

In the early years, when Xiaomi mainly promoted the "Mijia" ecological chain, the Mijia desk lamp and smart door lock supported the connection to Apple’s Homekit, and then the printer was seamlessly connected to Apple’s AirPrint. When Xiaomi SU7 was released last year, it was a one-step adaptation for Apple users, which not only supported CarPlay and Airplay, but even supported the iPad to get on the bus.

 

Lei Jun even said at the time that "Apple users will have a good experience when they drive Xiaomi cars".

 

It should be said that the compatibility of these devices with the Apple system is not surprising. Because both Xiaomi’s home eco-products and Xiaomi’s cars are outside Apple’s product sequence, it is very important for Xiaomi to attract iOS users without competition.

 

But the problem is that on 澎湃 OS 2.0, Xiaomi’s mobile phone is interconnected with iPad and Mac, and Xiaomi has its own tablet and PC products, which is contrary to the common narrative logic in the Android camp.

 

Here is an interesting phenomenon: although the open source features of Android system can’t make devices tightly coupled, most manufacturers are still keen to build a relatively closed ecosystem.

 

In essence, this is because manufacturers want to bind mobile phones, tablets and IoT devices together. Of course, in terms of propaganda, most of them use the words "to ensure the consistency of user experience".

 

It should be said that this statement is true to some extent. After all, if the terminal manufacturer has the ability to rewrite the framework of file transfer from the bottom, it must be better than the simple communication protocol opening in stability.

 

However, in the current Android camp, there is neither a "walled garden" forced by iOS and App Store, nor a good cross-test experience for users.

 

Regardless of the compatibility of Android with desktop systems such as Windows, MacOS and Linux, we only talk about the previous communication interconnection within Android. Up to now, there is no comprehensive solution. When it comes to cross-end file transfer, users will still choose third-party applications such as LocalSend, or even "file transfer assistants" with simple functions.

 

Therefore, in the middle of the Android camp, building a completely closed-loop ecology can basically be regarded as congenital conditions.

 

Therefore, it is not difficult to understand why Xiaomi holds such a development attitude towards the closed apple ecological equipment.

                     

On the one hand, Xiaomi rarely overlaps with Apple’s user portraits on products other than mobile phones, just as people who buy Xiaomi tablets pay more attention to entertainment attributes, while iPad users will pay attention to productivity applications. On the other hand, the Android system is inherently difficult to close the ecology, and there is really no need to forcibly shape the "ecological moat".

 

In addition, with the promotion of AI application in the end side, the barriers between different ecosystems must be gradually blurred.

 

They are all bucket machines. What do manufacturers spell?

 

On the eve of this conference, there was an episode in which all kinds of digital forums were wondering how much the price of Xiaomi 15 series would increase this time.

 

Because when the Xiaomi 14 series was released, Lei Jun specially emphasized that "the cost of various components is rising this year, and the price is 3999 yuan (price), which is really the last time."

 

In the end, when the price of Xiaomi 15 series was released, the price of 200 yuan fluctuated under the same configuration as the previous model, and the image of Xiaomi as "cost-effective" was maintained. After all, on SoC alone, the price of Qualcomm Snapdragon 8 Extreme Edition has increased by 15% this year compared with the previous generation.

 

However, it is worth mentioning that after this conference, except for the price, there was hardly much discussion on Xiaomi 15 series, and the same was true for mobile phones released by other manufacturers recently.

 

One problem reflected by this is that there is basically no performance difference in the hardware configuration of today’s mobile phone industry, and almost all the bucket machines on the flagship models are guaranteed to be over-configured. Even in the past, the boundaries of the "medium cup/large cup" models deliberately differentiated by manufacturers were not so clear. Looking at the "beggar version models" of each family, even obvious shortcomings could not be found.

 

In this context, what should manufacturers fight for in the future mobile phone industry?

 

At present, AI must be a general direction.

 

On the 澎湃 OS 2.0 system, Xiaomi has equipped a number of AI functions for this system, including movie lock screen based on AI computing, AI writing, AI sound recognition, etc., as well as the upgraded AI Agent "Super Little Love".

Looking at these functions alone, none of them will make people feel fresh, but Xiaomi’s advantage lies in the 澎湃 OS system, which integrates Xiaomi Vela OS, an embedded Internet of Things software platform developed by Xiaomi, at the beginning of its design, and its distributed collaborative computing features are naturally suitable for cross-end execution.

 

Therefore, what Xiaomi really expects is the role that AI Agent plays in smart homes and cars on the basis of taking mobile phones as the control center.

 

A counterintuitive fact is that although the big model has penetrated into all walks of life, the smart home, which was first regarded as the AI landing scene, has even regressed.

 

Taking smart speakers as an example, according to the data of Roto Technology, in the first half of 2024, the sales volume of smart speakers in China was 8.055 million units, with sales of 2.17 billion yuan, down by 29.8% and 33.8% respectively.

 

From the user’s point of view, the current smart home devices lack the ability to create automatic scenes, and the traditional "point-to-point" control between APP and smart devices has been difficult to meet the intelligent needs in complex scenes.

 

From this point of view, Xiaomi’s huge smart home ecology seems to be the best sample to verify whether AI Agent can be competent for multi-scenario scheduling.

Xinjiang public security organs announced 8 typical cases of cyber crimes.

  Cctv newsAccording to the WeChat WeChat official account news of the Network Security Bureau of the Ministry of Public Security, in order to effectively purify the network environment and effectively maintain the clear cyberspace, Xinjiang public security organs have continuously cracked down on network-related crimes according to law and investigated a number of network-related crimes.

  Case 1: Wang and others are suspected of helping information network criminal activities.

  On February 9, 2023, the work of the public security organs in Hutubi County, Changji Prefecture found that Wang, a resident of the jurisdiction, and others helped telecom network fraud gangs to carry out illegal and criminal activities of "running points" money laundering, involving a huge amount of money. At present, the public security organs have transferred eight people, including Wang and Yi, to the procuratorial organs for prosecution for helping information network criminal activities.

  Case 2: Zhang and Lai are suspected of helping information network criminal activities.

  On March 15th, 2023, the public security organ of Tacheng City in Tacheng District found that the suspects Zhang and Lai handled a number of fixed telephones and set up GOIP equipment in the form of registered companies, helping overseas electric fraud gangs to commit telecom fraud and criminal activities. Tacheng People’s Court sentenced Zhang to one year and six months’ imprisonment and Lai to one year’s imprisonment for helping information network criminal activities.

  Case 3: Xie was suspected of using the Internet to spread obscene articles for profit.

  On July 3, 2023, the work of the public security organs in Midong District of Urumqi City found that Xie Mou, a netizen in the jurisdiction, uploaded a large number of obscene pornographic videos to a pornographic website for illegal profit. At present, the public security organs have transferred Xie to the procuratorate for prosecution for spreading obscene articles according to law.

  Case 4: Kaimou is suspected of using the Internet to spread obscene articles for profit.

  On November 15, 2023, the public security organs in Nileke County, Yili Prefecture found that Kaimou, a netizen in the jurisdiction, used the Internet to sell a large number of obscene pornographic videos. At present, the public security organs have transferred Kaimou to the procuratorate for prosecution for the crime of making, copying, publishing, selling and disseminating obscene articles for profit.

  Case 5: Ma was suspected of providing intrusion and illegal control of computer information system programs and tools.

  On September 26, 2023, the public security organs of Toli County in Tacheng District found that Ma, a netizen in the jurisdiction, used APP vulnerabilities to write software agreements to illegally obtain citizens’ personal information. At present, the public security organs have transferred Ma to the procuratorate for the crime of invading and illegally controlling computer information system programs and tools.

  Case 6: Buying a case of infringing citizens’ personal information

  On July 20, 2023, the work of the public security organs in Kuqa City, Aksu Prefecture found that netizens in the jurisdiction bought a job by using the agency of the telecom business hall, illegally obtained a large number of mobile phone numbers, verification codes and citizen ID cards, and registered and sold various platform network accounts in batches, illegally making profits of more than 25,000 yuan. At present, the public security organs take criminal compulsory measures against Buyou according to law.

  Case 7: Ding Mou’s case of infringing citizens’ personal information.

  On September 15, 2023, the work of the public security organs in Kashgar found that Dingmou, a netizen in the jurisdiction, illegally sold more than 9,800 pieces of personal information of citizens by taking advantage of his work in the decoration industry, and illegally made a profit of more than 13,000 yuan. At present, the public security organs have taken criminal compulsory measures against Ding.

  Case 8: Bumou is suspected of online gambling.

  On November 11, 2023, the work of the public security organs in Zepu County, Kashgar, found that Bumou, a netizen in the jurisdiction, participated in gambling crimes through online gambling APP. According to the provisions of Article 70 of the Law of People’s Republic of China (PRC) on Public Security Administration Punishment, the public security organ shall impose administrative detention on Bumou according to law.

Turn waste into food! Efficient synthesis of starch and protein from corn stalk.

The joint team used the multi-enzyme molecular system containing cellulose degrading enzyme and starch synthase in vitro to biotransform with Saccharomyces cerevisiae, which can hydrolyze cellulose in corn stalk with high efficiency to synthesize artificial starch, and at the same time produce microbial protein by low-cost fermentation under aerobic conditions.
The rapid growth of global population and climate change will make mankind face great challenges to food security. Using synthetic biotechnology to efficiently convert agricultural waste resources into artificial food is one of the important ways to alleviate the food crisis and realize the sustainable development of agriculture.
Recently, Tianjin Institute of Industrial Biotechnology of China Academy of Sciences, together with Institute of Biotechnology of Chinese Academy of Agricultural Sciences, developed a new technology to efficiently synthesize artificial starch and single cell protein from corn stalk, which further reduced the production cost of artificial starch and provided a new way for grain production. Related research papers were published online in Science Bulletin (English version).
Producing starch from lignocellulose is expected to alleviate the food crisis.
The world produces about 200 billion tons of lignocellulose every year. Because each ton of lignocellulose contains about 40% cellulose, it produces about 80 billion tons of cellulose every year.
"Human beings can digest dextran linked by α-1,4-glycosidic bonds, that is, starch, but due to the lack of cellulose hydrolase, they cannot digest dextran linked by β-1,4-glycosidic bonds, such as cellulose, from lignocellulose. If the glucan composed of β-1,4-glycosidic linkage can be converted into the glucan composed of α-1,4-glycosidic linkage through enzymatic reaction, that is, using non-food biomass to produce starch is expected to alleviate the food crisis, which will be a great benefit for human beings. " Ma Yanhe, one of the authors of the paper and a researcher at Tianjin Institute of Industrial Biotechnology of China Academy of Sciences, said.
Developing multi-enzyme molecular system in vitro to improve the production efficiency of artificial food
In this study, in vitro multi-enzyme molecular system containing cellulose degrading enzyme and starch synthase was used for biotransformation with Saccharomyces cerevisiae. Cellulose in corn stalk could be hydrolyzed with high efficiency to synthesize artificial starch, and microbial protein could be produced by low-cost fermentation under aerobic conditions.
"In this study, we first created a low-cost efficient cellulose degradation and cellobiose production technology to remove β -glucosidase from commercial cellulase, effectively removed β -glucosidase from cellulase mixture, and used cellulose-enzyme-yeast complex to reduce the feedback inhibition of cellulose hydrolysate and improve the hydrolysis ability of cellulase." Zhang Wei, one of the authors of the paper and a researcher at the Institute of Biotechnology of the Chinese Academy of Agricultural Sciences, said.
Zhang Yiheng, a researcher at Tianjin Institute of Industrial Biotechnology, China Academy of Sciences, said: "Traditional biological manufacturing relies on living organisms such as microorganisms, plants and animals, but a lot of energy and sugar resources are used for self-reproduction, replication and life maintenance of organisms unrelated to biological manufacturing, which restricts the improvement of manufacturing efficiency. In vitro multi-enzyme molecular system is a new tool of synthetic biology, which completely avoids the above unnecessary waste and greatly improves the energy utilization rate, just as machinery replaces cattle in agricultural production, making it possible to achieve high production efficiency of artificial food. "
"One of the important technological breakthroughs in this research is the preparation of intracellular recombinant enzyme at low cost. The team transformed the recombinant enzyme expression strain, used cheap inorganic nitrogen source and glucose culture medium to carry out microbial culture at ultra-high density, and reduced the production cost of key recombinant enzymes to near the lowest theoretical value, achieving the production cost per kilogram of recombinant enzyme (dry weight) of only 250 yuan, which reduced the enzyme cost by about 1 million times compared with laboratory shake flask fermentation and conventional enzyme purification technology; The second breakthrough is that on the basis of using the existing low-cost cellulase, after removing β -glucosidase by new technology, cellulose can be hydrolyzed efficiently, stably and controllably, and its cost is nearly 1 million times lower than that of expensive purified cellulase. " Zhang Yiheng said.
This new technology has opened up a new way for the production of artificial grain, achieved the goal of securing China’s rice bowl with cutting-edge new technology, and realized "storing grain in technology, storing grain in mountains and storing grain in forests", which is expected to solve the economic dilemma of grain storage and consolidate the foundation of food security in China. (Ma Aiping)
Source: Science and Technology Daily
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