Zheng Fengtian: plant additives should be used with caution

Business Club July 7 news plant growth regulating substances have been free from the regulation of additives in the past, can no longer continue to become a regulatory blind spot The watermelon explosion in Zhenjiang, Jiangsu Province, caused consumers to pay attention to the abuse of plant hormones in China Plant growth regulators are used with caution in Japan, the United States and other countries, with extremely strict applicable regulations and operating rules, improper use will bring serious consequences According to the financial times, the US National Environmental Protection Agency's research report shows that excessive use of expanders can cause kidney damage in mice InSAR, a professor of Botany in the Department of biology at Istanbul University in Turkey, warned that excessive hormones contained in fruits and vegetables are very harmful to human health, can damage the nervous system, cause allergic diseases and even cause cancer Although the United States is the country with the most developed additive technology, it has only approved the use of expanding agent in kiwifruit and special grapes, and has strict requirements on the use time and dosage American farms are all large farms, generally using mechanized operation technology, which can be operated in strict accordance with technical standards and processes There are more than 200 million small farmers in our country It is absolutely impossible for farmers to use these technologies according to strict standards and time, and the state has no corresponding regulatory force, so when introducing technologies, we should not only consider technologies, but also consider whether these technologies can be used correctly If it is difficult to use these technologies according to the standards, it is better for the government to carefully approve these technologies Some of China's unscrupulous researchers, in order to get a little technology transfer fee, try their best to introduce "advanced technology", but they do not care about the consequences of the abuse of these technologies in our Congress, which is the most worrying In the past, clenbuterol was introduced as "advanced technology" Some researchers made a fortune, but all consumers took the health risk Take a look at the related academic papers of China Journal They are full of expanders that have been tested to different fruit and vegetable varieties and their yield increasing effects There are also some so-called "new technologies" to eliminate the residue of expanders, but it is difficult to find the health impact reports of people and animals after long-term use Our use doctrine only uses technology, but ignores the standards, scope and habits of technology use There are two principles for the use of food additives, one is technically feasible, the other is to improve product quality and nutrition The application of plant growth regulators in melon and fruit production should also apply these two principles At present, the use of expanding agent only increased the yield, but did not contribute to the improvement of the quality of fruits, or even reduced the quality of fruits In March 2009, Shaanxi Province issued the notice on forbidding the use of expanding agent in the production of kiwifruit, which mentioned that excessive use of expanding agent would lead to the distortion of kiwifruit shape, the decline of internal quality, the shortening of storage period and shelf life, and the increase of rotten fruit rate The use of the expanding agent will also cause the tree to weaken prematurely and affect the economic life of the tree, especially "eating the fruit containing the expanding agent may cause harm to human health" In order to avoid the "Kiwi industry destroyed in one time", the fruit industry administration of Shaanxi Province issued the above notice At present, the United States, Canada, Japan and other countries have set strict pesticide residue standards for these hormones China's relevant standards are still seriously lagging behind and need to be improved At least these phytohormones should be detected in pesticide residues in the future The government should also stipulate that in strict accordance with the regulations on the administration of additives, labels must be made on the fruits and melons using the expanding agent, indicating the type and content of the plant growth regulators contained in the fruits and melons, so that consumers can choose whether to buy or not In addition, the United States has a good experience for our country to learn, that is, these plant growth regulators listed as pesticides need to go through strict toxicology and health tests before they can be listed on the market, which is approved by the environmental department rather than the agricultural department, so as to ensure that the agricultural Department abuses production increasing technology in order to increase production.