1. The role of food additives

Reasonable use of food additives can prevent food from spoiling, maintain or enhance the nutrition of foods, and improve or enrich the color, aroma, taste and so on.

2. The necessity of using food additives

In fact, the use of preservatives is more dangerous because deteriorating foods often cause food poisoning. In addition, in addition to preventing food spoilage, preservatives can also kill toxin-producing microorganisms such as kojimycin, which is undoubtedly beneficial to human health.

3. Safe use of food additives

The amount of food additive that does not have any toxic or adverse effects on health is expressed in terms of mass per kilogram of daily intake (mg).

GB 2760-2011 National Food Safety Standards Standards for the use of food additives.

4, do not use toxic additives

"Hanging block" is formaldehyde sodium hydrogen sulfite, also called white powder hanging white block, the chemical formula is NaHSO2 · CH2O · 2H2O. It is prepared by reacting zinc powder with sulfur dioxide to form low sulfurous acid, etc., and then reacting with formaldehyde, concentrating in a vacuum evaporator, and condensing into a block. "Hanging block" is a white block or crystalline powder, soluble in water. It is stable at room temperature, decomposes sulfurous acid at high temperature, has strong reducing property, and thus has bleaching effect.