Propionic acid

Propionic acid is a naturally occurring organic compound with a sharp, pungent smell, similar to that of certain cheeses and dairy products. Chemically, it’s a simple carboxylic acid used as a food preservative to prevent mold and bacterial growth, especially in baked goods and cheese. In the body, it’s produced during the digestion of some amino acids and fatty acids. It also plays a role in certain metabolic processes. Because of its antimicrobial properties, propionic acid helps extend the shelf life of foods, and it's utilized in various industrial applications.