What is a Calcium propionate (Ca(C₃H₅O₂)₂)?

Calcium propionate (Ca(C₃H₅O₂)₂) is a calcium salt of propionic acid, commonly used as a preservative in the food and feed industries. It appears as a white, odorless powder or crystalline substance, with a faintly acidic taste. Calcium propionate is primarily employed as a mold inhibitor in bakery products, such as bread, to prevent the growth of mold and bacteria, thus extending the shelf life of these products. In addition to its use in food, calcium propionate is also used as a feed preservative in livestock feed, particularly for pigs and cattle, to inhibit spoilage and maintain the quality of the feed. It also exhibits antimicrobial properties, enhancing food safety and increasing the storage duration of products.

The compound is generally recognized as safe (GRAS) for use in food products by regulatory bodies worldwide. While it poses little risk to human health when consumed in typical quantities, excessive intake can cause gastrointestinal discomfort. As such, it is important to adhere to recommended usage levels to avoid potential side effects.

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