And TBHQ As Preservatives

TBHQ, or tert-Butylhydroquinone, is a synthetic antioxidant. It is a white or slightly colored crystalline powder. It is made from hydroquinone, which is derived from petroleum.

TBHQ is added to foods to prevent oils and fats from spoiling, a process called oxidation. This helps extend the shelf life of products containing fats and oils. It is commonly found in fried snacks, baked goods, and processed meats.

In the US, TBHQ is approved as a food additive and is generally recognized as safe (GRAS) by the FDA when used within specified limits. Studies in animals have looked at high doses of TBHQ, but the effects of typical human consumption are less clear. Both JECFA and EFSA have evaluated TBHQ and established acceptable daily intakes. Some studies have raised questions about its effects, but regulatory bodies consider it safe at permitted levels.