|
ITEMS |
SPECIFICATION |
| Appearance | White, white-like or light yellow powder |
| Solubility | Slightly soluble in water |
| Identification | UV:Ratio of absorbance at 260 and 280nm 1.5-2.0 |
| Loss on Drying | 20.0% max. |
| pH Value (1% aqueous solution) | 5.0~9.0 |
| Assay | 95.0% min |
| Average molecular weight | 1000 KDa min |
| Protein content (Foline-phenol method) | <1.0% |
| Heavy metal content | ≦10ug/g |
| Transmittance(0.5%solution,550nm ) | ≧96.0% |
| Ethanol Residue | <0.5% |
| Bacterial endotoxin | <0.5EU/mg |
| Total aerobic bacteria count | ≦100cfu/g |
| Mold and Yeast count | ≦100cfu/g |
| Escherichia coli | Negative/g |
| Staphylococcus aureus | Negative/g |
| Pseudomonas aeruginosa | Negative/g |