Post: Fang zhouzi: Don't "Expand" Food Safety Problems

◇ Xin yusi (www.xys.org) (xys5.dxiong.com) (www.xinyusi.info) (xys2.dropin.org) ◇ 中 food safety problems, consumers have been shocked, but some media are still afraid that the psychological endurance of consumers is too powerful, so the phenomenon that is not a problem is infinitely magnified. For example, a newspaper recently reported that watermelon in a certain place had an "explosion" because melon farmers were using a "expansion agent", which is a hormone chemical. Experts said it would harm the main nervous system of the human body, this vulnerability may cause children with encephalitis, dysplasia, and dementia. After the news spread, many people are scared to eat watermelon, and the watermelon in some places is unsalable. Later, some agricultural experts began to report that watermelon burst may not be related to the application of expansion agents. Currently, there is no scientific evidence that the application of expansion agents may endanger human health. However, some people have come up with a counterargument, and the media has all reported their opinions as experts. "Since plant hormones can change the growth pattern of plants, it is impossible for people to have no side effects after eating," said a doctor of economics at Renmin University ". An associate professor from Peking University's Medical Department, who has consistently published a variety of strange stories, said foreign animal experiments showed that the expansion agent had an impact on health. Some people say it better. The expansion agent was first developed by Japan. Later I found a problem and banned it. The chemical name of the expansion agent is urea, which can stimulate the split and growth of plant cells. It is also a plant growth regulator, also known as plant hormones. Plant Hormones can be secreted by plants themselves, but science uses artificial synthesis and transformation to enhance their activity. The word "hormones" is scary, and misunderstandings may be caused to a considerable extent. But people are not plants, and things that can change the growth pattern of plants may have no effect on people. In fact, plant hormones and animal hormones are very different in chemistry and do not produce hormone-like effects on humans. On the contrary, animal hormones will not produce hormone-like effects on plants. "cucumber" is just a trigger of the drug. The Application of cucumber is also a plant growth regulator such as expansion agent. Plant hormones have no hormone-like side effects on the human body and may not have any other side effects. It is impossible for us to take people for a toxicology experiment. The common practice is to do an animal experiment, feed an animal with a large dose of drugs for a long time, and see what changes have taken place in the animal body, then, we can infer the potential impact on the human body. Animal experiments have not found any neurotoxic effect on the urea, so it is a rumor that it will harm the main nervous system of the human body and poison the cloud of children. An animal experiment found that the only organ affected by urea was the kidney with inflammation, but this was detected every day after a dose of urea was fed for two years. This dose is equivalent to a person who drinks several liters of undiluted urea solvent each day for two consecutive years. This is obviously impossible. The actual amount of expansion agent is very small. It is to dilute the commercial 0.1% urea solvent by 100 times and then spray or soak it. This dose will not be harmful to human body. Some people say: I am not worried about the normal use of the dose, I am worried that melon farmers will use too much. This worry is unnecessary. Plant hormones are different from pesticides. The higher the dosage, the better. The higher the dosage, the worse the effect. Even if you use too much, it is far from the above minimum harmful dose. It can be seen that urea is a safe pesticide, which can be used in the United States, the European Union and other parts of the world to handle fruit. Japan is also allowed to use it. It is neither developed by Japan (developed by the United States) nor disabled in Japan. A plant growth regulator that has been used securely for many years in countries around the world has caused such a storm in China. Thanks to the joint hyping of media and pseudo experts, the farmers have been sacrificed. Maybe the media really wants to pay attention to food safety issues, but their eyes are not good. If they see something wrong, they reveal that both scientific literacy and news literacy have problems: lack of scientific knowledge, without looking for real experts, they rushed to report, causing panic. 2011.5.25. (Xinhua Daily telecommunication 2010.5.27) (xys20110527) ◇ (www.xys.org) (xys5.dxiong.com) (www.xinyusi.info) (xys2.dropin.org) ◇