Soy sauce sodium benzoate

Benzoic acid, also known as benzoic acid, sodium benzoate, it is also known as sodium benzoate. Benzoic acid at room temperature, insoluble in water, slightly volatile in the air (especially the hot air), hygroscopic, about room temperature 0.34g / 100ml; but soluble in hot water; also soluble in alcohol, chloroform and non-volatile oil. More choice in the use of sodium benzoate; and corrosion resistance traits of benzoic acid and sodium benzoate are similar. Sodium benzoate mostly white granules, odorless or microstrip benzoin smell, taste sweet, there is convergence; soluble in water (room temperature) 53.0g around / 100ml, PH around 8; preservative sodium benzoate also acidic, alkaline MEDIUM no sterilization, antibacterial; its best PH is 2.5-4.0 corrosion when PH5.0 5% bactericidal effect was not very good. Sodium benzoate lipophilic large, easy to penetrate the cell membrane into the cell body, interference permeability of cell membranes, inhibiting cell uptake of amino acids; into the base reservoir cells in vivo acidification of intracellular ionized and inhibit cell respiratory enzymes, prevents condensation reaction of acetyl coenzyme A, which play food preservation purposes.