Ordinary Discount Vitamin E Collagen - Ascorbic acid (Vitamin C) – Toption Industry
Ordinary Discount Vitamin E Collagen - Ascorbic acid (Vitamin C) – Toption Industry Detail:
Ascorbic acid the biological activity of ascorbic acid compounds known, is a water-soluble vitamins, fruits and vegetables are abundant. In redox reactions regulate the metabolism of the lack of it can cause scurv. Ascorbic acid is widely used in different fields, is a bulk ingredients,naturally present in some foods, added to others, and available as a dietary supplement.
Specification of ascorbic acid
ITEM | STANDARD |
Appearance | White or almost white crystal or crystalline powder |
Identification | Positive |
Melting point | 191 ℃ ~ 192℃ |
pH (5%, w/v) | 2.2 ~ 2.5 |
pH (2%,w/v) | 2.4 ~ 2.8 |
Specific optical rotation | +20.5° ~ +21.5° |
Clarity of solution | Clear |
Heavy metals | =<0.0003% |
Assay (as C 6H 8O6, %) | 99.0 ~ 100.5 |
Copper | =<3 mg/kg |
Iron | =<2 mg/kg |
Mercury | =<1 mg/kg |
Arsenic | =<2 mg/kg |
Lead | =<2 mg/kg |
Oxalic acid | =<0.2% |
Loss on drying | =<0.1% |
Sulphated ash | =< 0.1% |
Residual solvents (as methanol) | =< 500 mg/kg |
Total plate count (cfu/g) | =< 1000 |
Yeasts & molds (cfu/g) | =< 100 |
Escherichia. Coli/g | Absence |
Salmonella/ 25g | Absence |
Staphylococcus aureus/ 25g | Absence |
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Ordinary Discount Vitamin E Collagen - Ascorbic acid (Vitamin C) – Toption Industry, The product will supply to all over the world, such as: , , ,
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