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Calcium propionate

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

Calcium propionate is a calcium salt of propionic acid, commonly used as a food preservative to inhibit the growth of mold and bacteria. It is particularly effective in bread and other baked goods.

5 Must Know Facts For Your Next Test

  1. Calcium propionate prevents mold and bacterial growth by disrupting their metabolic processes.
  2. It is considered safe for human consumption by regulatory agencies like the FDA.
  3. Calcium propionate is more effective at higher pH levels, making it ideal for use in bakery products.
  4. In addition to its microbial inhibitory properties, it also acts as a source of calcium in foods.
  5. Overuse or high concentrations of calcium propionate may cause gastrointestinal discomfort in sensitive individuals.

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