potassium sorbate, potassium salt of sorbic acid in laboratory dish, selective focus. food additive e202 used as food preservative

potassium sorbate e202 food additives glass lab flask chemical powder white pellets oblong granules salt sorbic acid preservative agent soluble additive laboratory dish pathogenic wine stabilizer plastic measuring cup antimicrobial industrial ingredient increase shelf life pharmaceutical compound number addition prevent mold microbes chemistry substance science replacement paraben selective focus used focus life