Citric acid is the trade name for citric acid, which is an organic compound from the group of hydroxy carboxylic acids, obtained by chemical synthesis or by lemon fermentation of purified sugar or starch hydrolyzate using mold cultures. Citric acid is used in the food industry as an additive responsible for a stable pH level, acidity regulator and antioxidant. Citric acid itself - E330 - is not a preservative, but the addition of even a small amount of it significantly lowers the pH, which results in the creation of an acidic environment in which the development time of microorganisms is extended, and vitamins are much better absorbed by the human body. Thanks to such conditions, vitamins and other important ingredients of food products have a longer shelf life. The level of use in products is not defined or limited in any way. It is used, among others, in the production of chocolate and cocoa products, fruit preserves, unprocessed fish, crustaceans, molluscs, as well as in the packaging of freshly ground meat. In cosmetics, its antioxidant properties are used to fight free radicals, which limits damage to skin cells and slows down the aging process.
In addition, citric acid is used in the production processes of: