Sodium Benzoate And Potassium Sorbate As Preservatives

Sodium benzoate and potassium sorbate are common food preservatives. Sodium benzoate is the sodium salt of benzoic acid, which occurs naturally in fruits like cranberries and apples. Potassium sorbate is the potassium salt of sorbic acid, a naturally occurring compound found in some plants. Both are typically produced synthetically for food use.

These ingredients are added to foods to prevent the growth of mold, yeast, and bacteria, which helps extend shelf life. They are often used together in acidic foods like salad dressings, sauces, jams, and pickled products to inhibit spoilage and maintain product quality.

In the U.S., both sodium benzoate and potassium sorbate are generally recognized as safe (GRAS) by the FDA when used as preservatives. JECFA and EFSA have evaluated both substances and established acceptable daily intakes. While generally considered safe in typical amounts, some studies have explored potential links between sodium benzoate and hyperactivity in children, though evidence is mixed and regulatory bodies have not found a causal link at approved levels. Concerns have also been raised about the formation of benzene when sodium benzoate is combined with ascorbic acid (Vitamin C) under certain conditions, leading to updated FDA guidance.