Propionic acid as food preservative
In the food industry, propionic acid and its salts are commonly used as preservatives. Calcium propionate and sodium propionate can effectively inhibit the growth of molds, yeasts, and aerobic bacteria, thereby extending the shelf life of food. For instance, in bread production, adding calcium propionate prevents mold growth during storage, maintaining the bread's soft texture and freshness. In the production of pastries, bean products, and other foods, propionates play a similar role, ensuring product quality stability over a certain period and reducing the risk of food spoilage due to microbial contamination.