| Customization: | Available |
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| CAS No.: | 121-79-9 |
| Formula: | N/a |
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Propyl Gallate (CAS 121-79-9) is a synthetically produced oil-soluble antioxidant widely used in the food industry to prevent oxidation and spoilage of food products containing fats and oils . It is liquid with a unique fruity aroma and is volatile in nature, making it an effective antioxidant for various food products, including edible oils, fried foods, meat products, and confectionery .
This compound is also known by several other names, such as 3,4,5-Trihydroxybenzoic acid propyl ester, n-Propyl gallate, and PG. It has a molecular formula of C10H12O5 and a molecular weight of 212.20. Propyl Gallate is characterized by its stability upon heating and its tendency to decompose upon exposure to light. It exhibits a slight solubility in water and is easily soluble in ethanol, ether, and propylene glycol .
In the food industry, Propyl Gallate is used as an antioxidant to extend the shelf life of products and maintain their quality. It is effective in inhibiting the oxidation of lipids, thus preventing rancidity and preserving the flavor and texture of food products . The use level of Propyl Gallate in food is regulated and is typically used at concentrations that do not exceed 0.1g/kg .
Propyl Gallate is manufactured through the esterification of gallic acid with propanol in the presence of an acid catalyst, followed by purification steps to ensure its purity and quality . It is important to store Propyl Gallate away from heat, light, and metal ions to maintain its stability and potency
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