Potassium sorbate

Potassium sorbate is the potassium salt of sorbic acid, a short-chain fatty acid of natural origin initially extracted from the berries of the rowan tree. Today produced by synthesis, it appears as a white powder or granules that are highly soluble in water, making it a particularly suitable preservative for liquid formulations. Its action is based on its ability to inhibit the growth of moulds, yeasts and certain bacteria by disrupting their cellular metabolism. At low concentrations, it extends the shelf life of products without altering their taste or nutritional composition. In the field of food supplements, potassium sorbate is used as a preservation excipient in liquid forms such as drinkable solutions or ampoules. Its use is regulated by European legislation, which sets maximum permitted levels to ensure its safety. It contributes to maintaining the microbiological stability of products throughout their shelf life.