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Ascorbyl palmitate is an ester formed from ascorbic acid and palmitic acid creating a fat-soluble form of vitamin C. In addition to its use as a source of vitamin C , it is also used as an antioxidant food additive ( E number E304).
E304 fatty acid esters of ascorbic acid such as ascorbyl palmitate (approved for use as a food additive in the UK, [49] US, [50] Canada, [51] Australia and New Zealand [52]) The stereoisomers of Vitamin C have a similar effect in food despite their lack of efficacy in human scurvy. They include erythorbic acid and its sodium salt (E315, E316). [49]
These applications use sodium palmitate, which is commonly obtained by saponification of palm oil. To this end, palm oil, rendered from palm trees (species Elaeis guineensis ), is treated with sodium hydroxide (in the form of caustic soda or lye), which causes hydrolysis of the ester groups, yielding glycerol and sodium palmitate.
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These compounds are water-soluble and, thus, cannot protect fats from oxidation: For this purpose, the fat-soluble esters of ascorbic acid with long-chain fatty acids (ascorbyl palmitate or ascorbyl stearate) can be used as antioxidant food additives. Sodium-dependent active transport process enables absorption of Ascorbic acid from the intestine.
Mineral ascorbates are used as dietary supplements and food additives, and drugs.An example of a mineral ascorbate drug is sodium ascorbate injections (the acid form, ascorbic acid, of vitamin c is too acidic for injections).
E number and American approval flags are derived from other sources. In the table below, food additives approved for the EU are listed with an 'E', [3] and those approved for Australia and New Zealand with an 'A'. [4] [5] and for the US with a U, even though the US does not use the INS numbering system.
Everything you need to know about the anti-aging skincare ingredient, vitamin A palmitate, including benefits and how it differs from retinol. If Your Skin Is Too Sensitive for Retinol, Use ...
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