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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]
Ascorbic acid is a furan-based lactone of 2-ketogluconic acid. It contains an adjacent enediol adjacent to the carbonyl . This −C(OH)=C(OH)−C(=O)− structural pattern is characteristic of reductones , and increases the acidity of one of the enol hydroxyl groups .
Redoxon is the brand name of the first artificially synthesized ascorbic acid . [1] [failed verification] Redoxon was first marketed to the general public by Roche in 1934, making it the first mass-manufactured synthetic vitamin in history.
Vitamin C (Ascorbic acid) Citrus, most fresh foods 1920: Vitamin D (Calciferol) Cod liver oil 1920: Vitamin B 2 (Riboflavin) Meat, dairy products, eggs: 1922: Vitamin E (Tocopherol) Wheat germ oil, unrefined vegetable oils 1929: Vitamin K 1 (Phylloquinone) Leaf vegetables: 1931: Vitamin B 5 (Pantothenic acid) Meat, whole grains, in many foods ...
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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The orange juice must have a Brix reading of at least 9.7, excluding the sweetening ingredients, and contain between 0.5 and 1.8 percent of acid by weight calculated as anhydrous citric acid. [31] Added orange essences, orange oils and orange pulp adjusted in accordance with good manufacturing practice is permitted.
Intravenous Ascorbic Acid or PAA, pharmacologic ascorbic acid [1] (also known as vitamin C or L-ascorbic acid), is a process that delivers soluble ascorbic acid directly into the bloodstream. It is not approved for use to treat any medical condition.