Although some academicians in the field of food safety claim that our government's supervision of food is absolutely the first in the world? However, in recent years, major food safety incidents have been exposed by the media. Shuanghui "Clenbuterol" pork storm has not subsided? The media also exposed the discovery of "dyed steamed buns" in Shanghai. For many years, a steamed bread manufacturer in Shanghai added pigment lemon yellow, sweetener sodium cyclamate and preservative potassium sorbate in the process of producing steamed bread. Dye white flour to make corn flour steamed bread? Enter a number of well-known supermarkets for sale. Is it fraudulent to pass white flour off as corn flour? None of these additives are allowed to be used in rice flour products according to national standards. Is it illegal? It is natural to investigate the legal responsibilities of relevant enterprises and responsible persons. But consumers are more concerned about whether eating these additives is harmful to the human body. Is it as terrible as some media and commentators say? These food additives are all legal additives in China? Although the national standard does not allow them to be used to produce steamed bread? But legally, it is widely used in drinks, pickles, biscuits, bread, cakes, spices, candied fruit, ice cream, ice cream, jelly, puffed food, fried snacks and many other foods? Even if you don't eat "dyed steamed bread"? It is inevitable to eat them. Of these three additives? The most reassuring thing is potassium sorbate. Sorbic acid, also known as sorbic acid? Originally extracted from the berries of sorbus europaea. It can inhibit the growth of mold, yeast and other fungi and some bacteria? It and its potassium salt are widely used as food preservatives. Is potassium sorbate very toxic? The LD50 of rats is 4920 mg/kg? Less toxic than salt? Semi-lethal dose is a commonly used index in toxicology? Refers to the amount that can cause half of the subjects to die? The higher, the lower the toxicity. The lethal dose of salt is 3600 mg/kg? . Sorbic acid is an unsaturated fatty acid? Is quickly broken down into ordinary carbon dioxide and water in the human body? It is unlikely to have adverse effects on the human body? At present, there are no reports of adverse reactions of sorbic acid or potassium sorbate. The most controversial thing is sodium cyclamate. Its chemical name is sodium cyclamate? Sweetness is 30% of sucrose? 50 times? Lower than saccharin? Saccharin is about 300 times sweeter than sucrose? But without the bitter taste of saccharin? So they are often mixed together as sweeteners. Sodium cyclamate was first discovered by Americans and listed in the United States. But in 1969? Experimental findings? Can the commonly used mixture of sodium cyclamate and saccharin 10: 1 increase the incidence of bladder cancer in rats? The United States Food and Drug Administration? FDA? The use of sodium cyclamate was banned. Since then, some companies have applied to the FDA to lift the ban? After the FDA reviewed the existing evidence? Think there is no evidence that sodium cyclamate is a carcinogen? But the ban was not lifted. The most noteworthy thing is lemon yellow. Is lemon yellow a synthetic azo dye? Generally used as a yellow colorant? It is widely used in beverages, foods, medicines, cosmetics and daily necessities. The main problem with lemon yellow is that there are a small number of people? About 0. 12% of the American population? Allergic to it? Symptoms such as anxiety, migraine, depression, blurred vision, itching, limb weakness, asthma, urticaria, sleep disorder, etc. Therefore, FDA stipulates that foods and medicines containing lemon yellow must be marked with lemon yellow ingredients. China foods such as egg noodles exported to the United States are often detained by FDA because they contain unlabeled lemon yellow ingredients. Animal experiments show that the intake of lemon yellow has adverse effects on liver, kidney and stomach wall? Even when the dose is very low, the function of liver and kidney has adverse reactions. The influence of lemon yellow on children's behavior may be even more worrying. 1994? The Children's Hospital of Melbourne University in Australia once conducted a double-blind trial? Let a group of children randomly take different doses every morning? 1? 50 milligrams? Lemon yellow or placebo? Evaluate its behavior after 24 hours. Turns out? Some children even take the lowest dose of lemon yellow? Also become more irritable, active and sleep disorders? The higher the dose? The longer the abnormal behavior lasts. A study by the University of Southampton in the UK in 2007 also found that? After children drink drinks containing six pigments such as lemon yellow? Will there be symptoms such as hyperactivity and inattention? Therefore, the British Food Standards Agency suggested that food enterprises should voluntarily stop using these pigments from 2009. Although many people always want to eat only "natural food"? Is it disgusting to listen to food additives? But food additives have become an inevitable part of our lives? It is impossible and unnecessary to exclude them altogether. There are many kinds of food additives? Should be treated differently. Some additives are nutrients? Such as vitamins and mineral elements? Proper addition is beneficial and harmless to the body. Some additives have no nutritional value? But it's also necessary? Such as preservatives. Although the name preservative makes some people feel terrible? "preservative-free" has become the selling point of some foods? But for foods that need to be preserved for a long time? It is necessary to use preservatives. If no preservatives are used? Once the food spoils? Toxins produced by microorganisms may do more harm to health. Some additives are not too necessary? Such as pigment. Pigment itself has no nutritional value? Can't increase the taste and taste of food? Just to dye food? Make it look gorgeous? To attract consumers to buy. Because pigment has no benefit to human body? It may be harmful instead? Its use should be restricted more strictly. For pigments that are known to be harmful to human health? Should it be disabled as soon as possible? Use other safer pigments instead. Even if it is necessary to use additives? Should also try to use safer varieties? For example, in preservatives? Sorbic acid is safer than benzoic acid. Is benzoic acid more toxic than sorbic acid? And benzoic acid in drinks can react with vitamin C to produce carcinogen benzene? Especially under the conditions of heat and light, it is easier to react. Should we call on the management to update the food additive standards immediately? Promote and encourage the use of harmless and low-toxic additive varieties? For illegal addition and excessive addition, we should vigorously crack down. But there is no need to harm legal additives because of illegal additives? Fear of all additives.