Propyl gallate

Propyl gallate is a food additive used to protect fats and oils from oxidation. It is an ester derived from gallic acid and propanol.

Chemical Structure

Propyl gallate has a chemical formula of C10H12O5. It is a white crystalline powder with a slightly bitter taste. The structure of propyl gallate consists of a benzene ring with three hydroxyl groups attached, and a propyl group attached to one of the hydroxyl groups.

Uses

Propyl gallate is primarily used as an antioxidant in food, cosmetics, and pharmaceuticals. It is often used in conjunction with BHA and BHT. In food, it is used to prevent the rancidity of fats and oils. In cosmetics, it is used to prevent the oxidation of oils and fats, which can lead to spoilage. In pharmaceuticals, it is used to prevent the oxidation of active ingredients.

Safety

The Food and Drug Administration (FDA) has classified propyl gallate as a Generally Recognized as Safe (GRAS) substance. However, some studies have suggested that propyl gallate may have potential health risks, including allergic reactions, asthma, and potential carcinogenic effects. More research is needed to fully understand the potential health risks of propyl gallate.

Regulation

In the United States, the use of propyl gallate in food is regulated by the FDA. The European Food Safety Authority (EFSA) also regulates the use of propyl gallate in food in the European Union.

See Also

• Butylated hydroxyanisole
• Butylated hydroxytoluene
• Food preservation
• Food safety