Details:
Sericin is the colloid protein wrapping outer layer of silk.
Yellowish powder, soluble in water, ninhydrin reaction is positive.
| Characters |
White to light yellow powder, easy deliquescence. Soluble in water. |
| Total Nitrogen (%) |
≥14 |
| Percentage of Polarized Side Amino Acids in Total Amino Acids (%) |
>70 |
| Loss on Drying (%) |
5.0 |
| Residue on Ignition (%) |
4.0 |
| pH Value |
5.0-7.0 |
| Heavy Metal (Pb) (mg/kg) |
≤5 |
| Arsenic (mg/kg) |
≤0.5 |
| Total Bacterial Count (CFU/g) |
≤3000 |
| Coliform (MPN/100g) |
≤90 |
| Pathogenic Bacteria (Salmonella, Shigella, Staphylococcus Aureus) |
Not Detectable |
