Sodium Metabisulphite Food Grade

Sodium metabisulfite is a widely used food additive, the key to the role of the substance is the formation of sulfurous acid, sulfurous acid is a strong reductant, when oxidized, can be coloring substances can be restored to fade, so that the food to maintain a bright color, but also inhibit oxidative enzymes in the food, to prevent the food from deteriorating; in addition, due to its reducing effect, can block the normal physiological oxidation process of microorganisms, inhibit microbial reproduction, and thus play a preservative effect. In addition, due to its reducing effect, it can block the normal physiological oxidation process of microorganisms and inhibit microbial reproduction, thus playing the role of preservation.