Potassium benzoate is produced by the neutralization of benzoic acid with potassium hydroxide. It is highly soluble in water and dissociates to release benzoic acid in acidic food systems. It provides effective antimicrobial preservation below pH 4.5.
Potassium benzoate is increasingly used as a substitute for sodium benzoate in reduced-sodium food formulations without sacrificing antimicrobial efficacy. It is particularly effective against yeasts, molds, and acid-tolerant bacteria that cause spoilage in beverages, dressings, and condiments. Potassium benzoate's excellent water solubility and potassium content make it a preferred preservative for health-conscious beverage and food manufacturers.
