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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. [95]
Diprogulic acid (also known as dikegulac) is a precursor used in commercial ascorbic acid production. [1] In agriculture, its sodium salt , dikegulac sodium , is used as a plant growth regulator , primarily used as a branching agent.
Vitamin C (ascorbic acid) is a water-soluble compound that fulfills several roles in living systems. Sources include citrus fruits (such as oranges , sweet lime , etc.), green peppers , broccoli , green leafy vegetables , black currants , strawberries , blueberries , seabuckthorn , raw cabbage and tomatoes .
And that can include everything from ascorbic acid (aka vitamin C), which helps keep foods fresh, to iodine, which was added to salt in the 1920s to help combat iodine deficiency in the general ...
Additives are used for many purposes but the main uses are: Acids Food acids are added to make flavors "sharper", and also act as preservatives and antioxidants. Common food acids include vinegar, citric acid, tartaric acid, malic acid, folic acid, fumaric acid, and lactic acid. Acidity regulators
[71] [72] In addition to its direct antioxidant effects, ascorbic acid is also a substrate for the redox enzyme ascorbate peroxidase, a function that is used in stress resistance in plants. [73] Ascorbic acid is present at high levels in all parts of plants and can reach concentrations of 20 millimolar in chloroplasts. [74]
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] Sodium ascorbate normally provides 131 mg of sodium per 1,000 mg of ascorbic acid (1,000 mg of sodium ascorbate contains 889 mg of ascorbic acid and 111 mg of sodium).
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). Ascorbate salts may be better tolerated by the human body than the corresponding weakly acidic ascorbic acid.