What is a food preservative?

Leading Word: Preservatives are food additives that can kill microorganisms or inhibit their reproduction, and reduce food corruption caused by microorganisms during production, transportation, and sales. What is important is that it can inhibit the occurrence of the most perishable effect in different situations, especially when the general sterilization effect is insufficient.

There are strict regulations on the use of preservatives in China, and the preservatives should meet the following standards: 1. Reasonable use is harmless to the human body; 2. Does not affect the digestive tract flora; 3. It can be degraded into normal food components in the digestive tract; 4. No Affect the use of antibiotics; 5. Does not produce harmful ingredients when heat-treated foods.

The common food preservatives are the following:

Sodium benzoate, Potassium sorbate, Calcium propionate, Sodium propionate, Propylparaben, Dehydroacetic acid, Sodium diacetate, Carbon dioxide (mainly used for carbonated beverages), Hydrogen peroxide (mainly for raw milk, tofu) Dry preservation), nisin and so on.