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.
产品名称 Product Name | 维生素B12/甲钴胺 Vitamin B12//Methylcobalamin | 保存方法 Storage Condition | 存放于阴凉干燥处，远离强光和高温。 Store in cool & dry place, Keep away from strong light and heat. |
检测项目Item | 标准Specification | 结果Result | 依据Method | 产品基础信息 Basic Product Information |
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| 产地Country of Origin | 中国China | 符合Conform | / | 含量检测Marker Compounds |
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| 含量Content | 98% | 98.56 | HPLC | 氮溶解指数NSI | ≥99% | 99.5% | / | 溶解率Solubility | 100% | 符合Conform | / | 脂肪Fat | ≤0.1% | 0.03% | 酸水解法 | 感官指标Organoleptic Data |
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| 外观Appearance | 粉末Powder | 符合Conform | NLS-QCS-1008 | 颜色Color | 红色Red | 符合Conform | GB/T 5492-2008 | 气味Odor | 特有Characteristic | 符合Conform | GB/T 5492-2008 | 味道Taste | 特有Characteristic | 符合Conform | GB/T 5492-2008 | 加工工艺Process Data |
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| 生产方式Method of Processing | 发酵Ferment | 符合Conform | / | 提取溶剂Solvent(s) Used | 水Water | 符合Conform | / | 干燥方式Drying Method | 喷雾干燥Spray drying | 符合Conform | / | 物理性质 Physical Characteristics |
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| 水分Moisture | <5% | 0.21% | GB 5009.3-2016 | 灰分Ash Content | <5% | 0.16% | GB 5009.4-2016 | 溶剂残留Solvent Residue | 欧洲药典Eur Pharm | 符合Conform | NLS-QCS-1007 | 重金属Heavy Metals |
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| 重金属总量 Total Heavy Metals | <10 ppm | 符合Conform | USP <231>, method II | 砷Arsenic | <2.0 ppm | 符合Conform | AOAC 986.15, 18th | 铅Lead | <2.0 ppm | 符合Conform | AOAC 986.15, 18th | 汞Mercury | <0.5 ppm | 符合Conform | AOAC 971.21, 18th | 农药残留Pesticide Residue |
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| 666 | <0.2ppm | 符合Conform | GB/T5009.19-1996 | DDT | <0.2ppm | 符合Conform | GB/T5009.19-1996 | 微生物Microbiology |
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| 总菌落Total Plate Count | <1,000cfu/g | 符合Conform | AOAC 990.12, 18th | 酵母菌和霉菌 Total Yeast & Mold | <1,000cfu/g | 符合Conform | FDA (BAM) Chapter 18, 8th Ed. | 大肠杆菌E. Coli | 阴性Negative | 阴性Negative | AOAC 997.11, 18th | 沙门氏菌Salmonella | 阴性Negative | 阴性Negative | FDA (BAM) Chapter 5, 8th Ed. |
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