In 2006, the “Sudan Red†incident constituted a new hidden danger to food safety, which aggravated consumer panic. In the process, feed colorants have also been implicated. The vast majority of urban and rural residents do not know the truth. For health reasons, they refused to eat “colored foodsâ€, which led to a decline in sales of feed colorants. Some grassroots law enforcement agencies lack the knowledge to treat Sudan red and feed colorants, and some industry insiders are not well aware of the differences between Sudan red and feed colorants. In fact, the chemical structure, mechanism of action, and toxicity of Sudan red and feed colorants vary widely. The use of Sudan Red has a safety hazard, and the use of feed colorants is safe. 1 Chemical structure and mechanism of feed coloring agent 1.1 Safety of feed coloring agent In the EU, the United States and other regions, the use of β-carotene as a coloring agent in poultry feed has been more than 40 years old, and has been in China for more than 20 years. The seven feed colorants approved by the Ministry of Agriculture No. 658 “Feed Additives Catalogue (2006)†are all β-carotene, the original vitamin A. Among them, capsicum also contains 13.9% β-carotene. Vitamin A is usually a compound that can be converted into vitamin A in animal organisms. It is the most widely distributed plant pigment, and is widely found in fruits, vegetables, animal kidneys, liver and dairy products. The physicochemical properties and biological properties of chemically synthesized colorants are completely consistent with natural beta-carotene. But the price is cheaper than natural pigments, and after coating, the effect and stability are better than natural pigments.
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