Propionate

Propionates are salts or esters of propionic acid, a naturally occurring organic acid. Propionic acid is produced by the fermentation of carbohydrates by certain bacteria, and is also found in some dairy products. In food production, propionic acid and its salts are often produced industrially through chemical synthesis.

Propionates are primarily used as preservatives in baked goods, particularly bread and rolls. They inhibit the growth of mould and rope-forming bacteria, thereby extending the shelf life of these products. This function makes them valuable for maintaining the freshness and quality of commercially produced bread.

Propionates are authorised food additives in the UK and are listed on the Register of Food Additive Authorisations. They are permitted for use in a range of foods, including bread and baked goods. European food safety authorities, such as EFSA, have evaluated propionates. At typical consumption levels found in food, propionates are not associated with adverse health effects.