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Address: No.266 Tianshan Street Hi-Tech Park Shijiazhuang City, China
Contact name:Yoyo
Pioneer Technology Co.,ltd |
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Vitamin B12, vitamin B12 or vitamin B-12, also called cobalamin, is a water-soluble vitamin with a key role in the normal functioning of the brain and nervous system, and for the formation of blood. It is one of the eight B vitamins. It is normally involved in the metabolism of every cell of the human body, especially affecting DNA synthesis and regulation, but also fatty acid synthesis and energy production. Neither fungi, plants, nor animals are capable of producing vitamin B12. Only bacteria and archaea have the enzymes required for its synthesis, although many foods are a natural source of B12 because of bacterial symbiosis. The vitamin is the largest and most structurally complicated vitamin and can be produced industrially only through bacterial fermentation-synthesis.
Test Items | Specifications | Test Result | Items Conclusion |
Description | Dark red crystalline powder, Have no smelly and tasteless; Hygroscopicity. | Dark red crystalline powder, Have no smelly and tasteless; Hygroscopicity. | Complies |
Identification | Positive | Positive | Complies |
Ratio Absorbances | A361nm/A278nm:1.70-1.90 A361nm/A550nm:3.15-3.40 | 1.83 3.22 | Complies |
Pseudo Cyanocobalamin | Complies | Complies | Complies |
Loss on Drying | ≤12.0% | 3.4% | Complies |
Assay on dried | 96.0%-100.5% | 98.3% | Complies |
Bacteria | ≤1000cfu/g | 700cfu/g | Complies |
Mould,yeasts | ≤100cfu/g | No found | Complies |
E Coli | No found | No found | Complies |
Limit of residual solvents | Acetone≤0.5% | 0.28% | Complies |
Conclusion | Conform to Complies with USP32. | ||
