项目 Items | 指标 Parameters |
壳寡糖含量 Oligosaccharide Content | 原浆 Concentrated Liquid≥5%、10% 原粉 Dried Powder≥90% |
脱乙酰基 Deacetylation Degree(DD) | ≥92% |
2-8个糖单位聚合度寡糖比率 2-8 Unit Oligosaccharide Ratio | ≥82% |
平均分子量(道尔顿) Average Molecular Weight(Dalton=Da) | ≤2000 |
水分(原粉) Moisture(Dried Powder) | ≤8.1% |
灰分 Ash | ≤0.5% |
水不溶物 Insolubles In Water | ≤0.05% |
pH范围(1%水溶液) pH Range(1%Sol.) | 5.0-7.0 |
气味 Odor | 略有酸味 Slightly Sour |
外观 Appearance | 红棕色液体 Reddish Brown Liquid 红黄色粉末 Reddish Yellow Powder |