Application Of Potassium Sorbate2021-05-06

Sorbic acid has a good inhibitory effect on the growth of molds, yeasts and aerobic bacteria. The antibacterial mechanism is that sorbic acid combines with the

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Sorbic acid has a good inhibitory effect on the growth of molds, yeasts and aerobic bacteria. The antibacterial mechanism is that sorbic acid combines with the sulfhydryl group of enzyme system to form a covalent bond. The sulfhydryl group loses its activity and destroys many important enzyme systems to achieve the purpose of preservation.
 
The thermal effect of sorbic acid involved in the metabolism of the human body is no different from saturated and unsaturated fatty acids which has the same carbon number. The conjugated double bonds in its molecules have no specific metabolic effects. It is currently considered the safest type of food preservation.
 
Potassium sorbate is prepared from potassium carbonate or potassium hydroxide and sorbic acid.
 
Potassium sorbate can effectively inhibit the activity of molds, yeasts and aerobic bacteria, thereby prolonging the preservation time of food and maintaining the original flavor of the food.
 
Potassium sorbate has a good inhibitory effect on microorganisms in acidic media. As the pH value increases, its antiseptic effect decreases. It is suitable for food preservation with a pH value below 5.5.
 
Potassium sorbate can also be used as a cosmetic preservative, and the dosage is generally 0.5%. Potassium sorbate can be mixed with sorbic acid, but the pH value of 1% potassium sorbate aqueous solution is 7~8, which has a tendency to increase the pH value of cosmetics.