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 |