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Chemical name: 3,4,5-Trihydroxybenzoic acid
Molecular Formula:C10H12O5
Molecular Weight:212.20
Propyl gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. Since 1948, this antioxidant has been added to foods containing oils and fats to prevent oxidation.[1] As a food additive, it is used under the E number E310.
Description
Propyl gallate is an anti-oxidant. It protects against oxidation by hydrogen peroxide and oxygen free radicals.
Propyl Gallate (PG) is a very effective antioxidant that can be used in various highly unsaturated fats and oils. It can be combined with BHA, BHT, and/or citric acid
Uses
Propyl gallate is used to protect oils and fats in products from oxidation.
It is used in foods, cosmetics, hair products, adhesives, and lubricants.
It is used as a triplet state quencher and an antioxidant in fluorescence microscopy.
Biological effects.
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