Views: 9 Author: Site Editor Publish Time: 2023-03-24 Origin: Site
Sodium ascorbate is one of many mineral salts of ascorbic acid (vitamin C).The molecular formula of this compound is C6H7NaO6. As the sodium salt of ascorbic acid, it is known as mineral ascorbate.It has not been shown to be more bioavailable than any other form of vitamin C supplementation.Sodium ascorbate typically 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).As a food additive, the E number is E301, which is used as an antioxidant and acidity regulator.It is approved as a food additive in the European Union,United States,Australia and New Zealand.In in vitro studies, sodium ascorbate has been found to produce cytotoxic effects in various malignant cell lines, including particularly susceptible melanoma cells.
Sodium ascorbate is prepared by dissolving ascorbic acid in water and adding an equal amount of sodium bicarbonate.After bubbling stops, add isopropanol to precipitate sodium ascorbate.
Mineral ascorbates are a group of ascorbates (vitamin C).They consist of mineral cations bonded to ascorbic acid (the anion of ascorbic acid).Mineral ascorbate is a powder prepared by reacting ascorbic acid with mineral carbonate in aqueous solution, expelling carbon dioxide, drying the reaction product, and then grinding the dried product to the desired particle size.Mineral carbonates of choice can be calcium carbonate, potassium carbonate, sodium bicarbonate, magnesium carbonate or many other mineral forms.
The mineral ascorbate is used as a dietary supplement and food additive.Ascorbate may be better tolerated by the body than the corresponding weakly acidic ascorbic acid.Ascorbate is a highly reactive antioxidant used as a food preservative.
Examples of mineral ascorbates are:
Sodium Ascorbate (E301)
Calcium Ascorbate (E302)
Potassium Ascorbate (E303)
Ascorbyl Palmitate is an ester formed from ascorbic acid and palmitic acid to form 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).It is approved as a food additive in the European Union,United States,Canada,Australia and New Zealand. Ascorbyl palmitate is also marketed as "vitamin C ester".It is synthesized by acylation of vitamin C using a different acyl donor.
Ascorbyl stearate (C24H42O7) is an ester formed from ascorbic acid and stearic acid.In addition to its use as a source of vitamin C, it is also used as an antioxidant food additive in margarine (E number E305).The USDA limits its use alone or in combination with other antioxidants to 0.02%.