Calcium propionate is an acid-type food preservative. Under acidic conditions, it produces free propionic acid and has an antibacterial effect. Its antibacterial effect is affected by the pH value of the environment. The inhibitory effect of mold is best when the pH value is 5.0; the antibacterial ability is significantly reduced when the pH value is 6.0, and the minimum inhibitory concentration is 0.01%. It has a strong inhibitory effect on various molds or aerobic bacillus in acid medium (starch, protein and oil-containing substances), and can also inhibit the production of aflatoxin, which is harmless to yeast and harmless to humans and animals. , No toxic side effects. It is a new, safe and efficient antifungal agent for food and feed in food, brewing, feed, and Chinese medicine preparations.

Easily soluble in water, slightly soluble in ethanol. It has a wide range of antibacterial effects on molds, yeasts and bacteria. It can be used as an antiseptic in bread and pastries. The lower the pH, the higher the antiseptic effect. Calcium propionate is almost non-toxic to the human body. Used in cosmetics as an antiseptic thorn, the maximum allowable concentration is 2% (calculated as propionic acid). Stored in a dry and cool warehouse, protected from rain and moisture during storage and transportation.

丙酸钙是酸型食品防腐剂，在酸性条件下，产生游离丙酸，具有抗菌作用。其抑菌作用受环境pH值的影响，在pH值5.0时霉菌的抑制作用最佳；pH值6.0时抑菌能力明显降低，最小抑菌浓度为0.01%。在酸性介质（淀粉、含蛋白质和油脂物质）中对各类霉菌或好氧芽孢杆菌有较强的抑制作用，还可以抑制黄曲霉素的产生，而对酵母菌无害，对人畜无害，无毒副作用。是食品、酿造·饲料、中药制剂诸方面的一种新型、安全、高效的食品与饲料用防霉剂。

易溶于水，微溶于乙醇。对于霉菌、酵母菌及细菌等具有广泛的抗菌作用，用于面包及糕点中可起防腐作用，pH值越低，防腐效力越高。丙酸钙对人体几乎无毒性。用在化妆品中作为防腐刺，最大允许浓度为2%(以丙酸计)。贮于干燥阴凉的库房中，贮运时要防雨、防潮。