Preservative And Citric Acid

Citric acid is a weak organic acid that occurs naturally in citrus fruits like lemons and limes. It is produced commercially through the fermentation of carbohydrate feedstocks, such as corn starch, using specific strains of the mold Aspergillus niger. This process yields a purified, crystalline powder.

Manufacturers add citric acid primarily to enhance flavor by providing a tart, sour taste and to act as a preservative by inhibiting microbial growth. It also functions as an acidity regulator, helping to control pH in foods and beverages. It is commonly found in candies, cakes, cupcakes, snack cakes, and chocolate products.

In the U.S., citric acid is generally recognized as safe (GRAS) by the FDA for use in food. It is widely consumed in many foods and beverages and is not associated with adverse health effects at typical dietary intake levels. International bodies like JECFA and EFSA have evaluated citric acid and established acceptable intake levels. While generally considered safe, some individuals may experience mild digestive upset if they consume very large amounts.