E282 - calcium propionate

Origin

Calcium propionate is a calcium salt of propionic acid. Propionic acid occurs naturally in some foods and is also produced by the body during the metabolism of certain amino acids. Commercially, calcium propionate is synthesized by reacting propionic acid with calcium hydroxide. It appears as a white crystalline powder.

Usage

Calcium propionate is primarily used as a preservative in a wide variety of food products. Its main application is in baked goods, such as bread, cakes, and pastries, where it inhibits the growth of mold and other microorganisms, thereby extending shelf life. It is effective at relatively low concentrations (typically 0.1-0.3% based on flour weight). It is also used in processed cheeses, jams, jellies, and other food products where mold growth is a concern. In addition to its antimicrobial properties, calcium propionate can also act as a source of calcium in food. It is also used in animal feed.

Side Effects

Calcium propionate is generally recognized as safe (GRAS) by regulatory agencies worldwide, including the U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA). The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has established an Acceptable Daily Intake (ADI) of 'not specified', meaning that, based on available data, the intake of calcium propionate from food does not represent a health concern. Some studies have suggested a possible link between calcium propionate and behavioral changes in children, but the evidence is limited and inconclusive. Allergic reactions are rare but possible. High doses may cause mild gastrointestinal discomfort in sensitive individuals.

Regulatory Status

Calcium propionate is approved for use as a food additive in many countries, including the United States, Canada, the European Union, and Australia. Regulations typically specify maximum permitted levels in various food categories. In the EU, it is designated as E282. The FDA includes it on its GRAS list (21 CFR 184.1221).