Citric Acid And Tbhq-preservatives

Citric acid is a weak organic acid found naturally in citrus fruits like lemons and limes. It is commercially produced by fermenting a sugar source, such as corn or beet sugar, using specific strains of the mold *Aspergillus niger*. Tert-butylhydroquinone (TBHQ) is a synthetic antioxidant.

Citric acid is used to add a tart, sour taste and as a preservative to prevent spoilage. TBHQ is an antioxidant that prevents oils and fats from going rancid. They are often found together in processed foods like chocolate, candy, baked goods, and snack foods to improve flavor and shelf life.

Citric acid is generally recognized as safe (GRAS) by the FDA for use in food. TBHQ is also approved by the FDA as a food additive. Both have been evaluated by international bodies like JECFA and EFSA. At typical consumption levels, they are not associated with adverse health effects. Some studies have explored potential antioxidant benefits of citric acid, but more research is needed.