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Ascorbic acid is easily oxidized and so is used as a reductant in photographic developer solutions (among others) and as a preservative. [citation needed] In fluorescence microscopy and related fluorescence-based techniques, ascorbic acid can be used as an antioxidant to increase fluorescent signal and chemically retard dye photobleaching. [29]
Ascorbic acid efflux by embryos of dicot plants is a well-established mechanism of iron reduction and a step obligatory for iron uptake. [a] All plants synthesize ascorbic acid. Ascorbic acid functions as a cofactor for enzymes involved in photosynthesis, synthesis of plant hormones, as an antioxidant and regenerator of other antioxidants. [96]
Dehydroascorbic acid (DHA) is an oxidized form of ascorbic acid (vitamin C). It is actively imported into the endoplasmic reticulum of cells via glucose transporters. [ 1 ] It is trapped therein by reduction back to ascorbic acid by glutathione and other thiols . [ 2 ]
The Reichstein process in chemistry is a combined chemical and microbial method for the production of ascorbic acid from D-glucose that takes place in several steps. [1] This process was devised by Nobel Prize winner Tadeusz Reichstein and his colleagues in 1933 while working in the laboratory of the ETH in Zürich.
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“[This serum] combines 15% L-ascorbic acid, vitamin E, and ferulic acid to protect against free radicals, reduce oxidative damage by up to 41%, and improve fine lines, firmness, and skin tone ...
Ascorbic acid: GMP [1] Standard 1.3.1 - Food Additives (Australian) [2] Wine, sparkling wine and fortified wine 0.03% (w/w), or 0.02% (w/w) depending on the matrix [3] The Miscellaneous Food Additives Regulations 1995 [4] Fruit and vegetable-based drinks, juices and baby foods Fat-containing cereal-based foods including biscuits and rusks
Sodium ascorbate is one of a number of mineral salts of ascorbic acid (vitamin C). The molecular formula of this chemical compound is C 6 H 7 NaO 6. As the sodium salt of ascorbic acid, it is known as a mineral ascorbate. It has not been demonstrated to be more bioavailable than any other form of vitamin C supplement. [2]