Sodium benzoate is an acidic preservative, which is a chemically synthesized preservative commonly used around the world. For a long time, we have been using sodium benzoate as a preservative for acidic foods such as jam, carbonated drinks and kimchi. So the mechanism of preservative sodium benzoate in the end what is it?
Sodium benzoate larger lipophilic, easy to penetrate the cell membrane into the cell body, interfere with cell membrane permeability, inhibit the absorption of amino acids on the cell membrane; into the cell ionizing acidification within the cell storage and inhibit the activity of respiratory enzymes, Prevent acetyl coenzyme condensation reaction, which play the role of food preservatives. The best anti-corrosion PH is 2.5-4.0 PH5.0 above products, the bactericidal effect is not very good.