Sodium Propionate is the sodium salt of propionic acid, appearing as white or colorless crystalline granules or powder with a slight, characteristic odor (similar to propionic acid). It is freely soluble in water. Its antifungal mechanism involves propionic acid inhibiting the synthesis of β-alanine required by molds. It is effective against molds and aerobic bacilli but has limited activity against yeasts and bacteria.
Main Applications：
Food Antifungal：Primarily used in bread, cakes, pastries, and mooncakes (added to dough or sprayed on surfaces) to prevent mold growth without inhibiting yeast fermentation.
Feed Preservative：Added to animal feed (especially silage) to inhibit molds and aerobic bacilli, preventing spoilage and extending storage life.
Grain Storage：Used for mold prevention in cereals, corn, and other stored grains.
Industrial & Pharmaceutical：Used in some ointments, cosmetics, and adhesives for antimicrobial preservation.
