Hits:Updated:2020-08-04 11:08:01【Print】
(1) The role of food additives
The rational use of food additives can prevent food spoilage, maintain or enhance food nutrition, and improve or enrich the color, aroma, and taste of food.
(2) The necessity of using food additives
In fact, not using preservatives is more dangerous, because spoiled food often causes food poisoning diseases. In addition, preservatives can not only prevent food spoilage, but also kill toxin-producing microorganisms such as aspergillus, which is undoubtedly beneficial to human health.
(3) Safe dosage of food additives
The amount of food additives that do not have any toxic effects or adverse effects on health is expressed by the mass (mg) ingested per kilogram per day, refer to
GB 2760-2011 National Food Safety Standard Standard for the use of food additives.
(4) Do not use toxic additives
"Hanging white block" is sodium formaldehyde bisulfite, also called hanging white powder hanging white block, the chemical formula is NaHSO2·CH2O·2H2O. It is prepared by reacting zinc powder with sulfur dioxide to generate hyposulfurous acid, etc., and then reacting with formaldehyde, condensing in a vacuum evaporator, and condensing into agglomerates. "Dang Bai Kuai" is white block or crystalline powder, soluble in water. It is relatively stable at room temperature, and can decompose sulfurous acid at high temperature, and has strong reducing properties, so it has a bleaching effect. It begins to decompose into harmful substances above 80°C.
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