Potassium Sorbate And BHT And TBHQ And Citric Acid

Potassium sorbate is the potassium salt of sorbic acid, a naturally occurring compound found in some fruits. It is manufactured synthetically for food use. BHT (butylated hydroxytoluene) and TBHQ (tert-butylhydroquinone) are synthetic antioxidants. Citric acid is a weak organic acid found naturally in citrus fruits, but is typically produced commercially by microbial fermentation.

These ingredients are commonly used together as preservatives and antioxidants to extend the shelf life of packaged foods. Potassium sorbate inhibits the growth of mold and yeast, while BHT and TBHQ prevent fats and oils from becoming rancid. They are often found in baked goods, snacks, and processed meats.

Potassium sorbate, BHT, TBHQ, and citric acid are all approved for use in food by the FDA. Potassium sorbate is generally recognized as safe (GRAS). BHT and TBHQ are approved food additives. Citric acid is GRAS. International bodies like JECFA and EFSA have evaluated these ingredients. Some studies have raised questions about the long-term effects of BHT and TBHQ, but regulatory agencies consider them safe at permitted levels.