Where does aflatoxin come from?
He Jiguo, an associate professor at the College of Food Science and Nutritional Engineering at China Agricultural University, said that aflatoxin, a mycotoxin, is a metabolite of food that has not been dried in time and stored in mold. It is widely found in life. Due to its strong toxicity and carcinogenicity, it is strictly regulated in national food standards and feed standards. Aflatoxin M1 belongs to mycotoxin, which is a hydroxylated metabolite of aflatoxin B1 in animals. It is highly toxic and carcinogenic. Because it may induce liver cancer, it was listed by the World Cancer Organization Cancer Research Organization as early as 1993. It is a type of carcinogen.
As for the reason why aflatoxin appears in dairy products, dairy industry veteran Song Liang said, "There are probably three reasons. One is that the cows have eaten the mildewed feed, which causes problems in the raw milk. The second is the machine in the production process. The cleaning is not clean, there is a mildew of organic matter; the third is that after the production of the product is completed, the packaging is not tight enough, and after the gas is leaked, it is combined with the organic matter in the air, which may cause aflatoxin."
Is aflatoxin first seen in milk?
Experts say that even if ordinary consumers boil milk, it will not help to eliminate aflatoxin. For milk, there is no large-scale effective detoxification method in the industry so far. The most fundamental method is to prevent cows from eating the poisoned feed.
He Jiguo said that aflatoxin has a wide range of pollution to food and food, and can be divided into three categories according to the probability of pollution: peanuts and their products, corn is the most susceptible to pollution, followed by cottonseed, rice, wheat and barley, soybean is the most A product that is not susceptible to aflatoxin contamination. In China, aflatoxin contamination in the high temperature and high humidity areas along the Yangtze River and south of the Yangtze River is quite serious. Aflatoxins may also be detected in some animal foods. The main reason is that animals eat aflatoxin-containing feed. After that, it remains in the form of metabolism in animals.
Why do layers of aflatoxins still exist?
In fact, since 2011, major dairy companies have increased their testing power for aflatoxins, and their detection is not difficult, so it is basically a batch inspection. Since 2014, China's supervision of the domestic dairy industry can be described as “the most stringent in historyâ€. For each dairy enterprise, it has been re-examined and issued, so why is there a phenomenon of aflatoxin exceeding the standard?
In this regard, Cao Ming, deputy secretary-general of the Shanghai Dairy Industry Association, explained that in fact, this requires seeking answers to two major questions: First, does the company really do the approval? Is it because of personnel, testing and other costs, not strictly comply with the corresponding rules, management loopholes, there is luck? Second, is the enterprise's feed to the farmers managed in a unified manner?
Generally, the farmers often recognize the moldy feed through the naked eye, and the large mold can recognize that the small mold is not easily recognized. "This is equivalent to giving the supervisory department an alarm. In the future, more attention should be paid to preventing the quality control of the feed and raw milk source," Song Liang said.
The insiders pointed out that the small pasture lacks control measures for the quality and safety of self-contained feed, and it needs to adopt a more professional and systematic form of feed management in the future. The aflatoxin exceeded the standard for the major dairy companies to sound the alarm, the quality of dairy products is not only the downstream management problems, but more important is the quality of raw milk, the milk enterprises in the process of dairy production, The supervision of it should not be stretched, but should take into account the entire industrial chain, to ensure that dairy products do not leak from beginning to end.
The latest feed hygiene standards?
Prevention and control measures for mycotoxins?
1, strictly control the feed off
Avoid using feed or raw materials that are obviously moldy, deteriorated, or too hydrated.
2, timely detection of mycotoxins in feed
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