Octyl gallate

Octyl gallate is a food additive used as an antioxidant and preservative. It is also known by its E number, E311.

Chemical Structure

Octyl gallate is an ester derived from gallic acid and octanol. It is a white, crystalline solid with a slightly bitter taste. Its chemical formula is C15H22O5 and its molecular weight is 282.33 g/mol.

Uses

Octyl gallate is primarily used as an antioxidant in food products, cosmetics, and pharmaceuticals. It helps to prevent the oxidation of fats and oils, thereby extending the shelf life of products. It is also used as a stabilizer in plastics, rubber, and adhesives.

Safety

The European Food Safety Authority (EFSA) and the U.S. Food and Drug Administration (FDA) have approved the use of octyl gallate as a food additive. However, some studies have suggested that it may have potential health risks, including allergic reactions and skin irritation.

Regulation

In the European Union, octyl gallate is listed as E311 and is approved for use in certain food categories. In the United States, it is recognized as a GRAS substance by the FDA.

See Also

• Propyl gallate
• Dodecyl gallate
• List of food additives

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• N-Octyl gallate