Details:
Water-soluble mixed amino acids, acquired from hydrolysis of silk fibroin;
Average molecular weight about 90, thus also called Fibroin-90;
White or creamy white powder;
Ninhydrin reaction is positive.
| Characters |
Easily dissolves in water and has sweet taste |
| Identify |
Ninhydrin reaction is positive |
| Total Nitrogen (%) |
≥15 |
| Drying Loss (%) |
≤4 |
| Residue on Ignition (%) |
≤3 |
| Total Content of Glycine, L-Alanine, L-Serine (%) |
≥83 |
| Heavy Metal (as Pb) /(mg/kg) |
≤5 |
| Arsenic (mg/kg) |
≤0.5 |
| Total Bacterial Count (CFU/g) |
≤100 |
| Coliform (MPN) (entity/100g) |
≤30 |
| Pathogenic Bacteria (Salmonella, Shigella, Staphylococcus Aureus) |
Not Detectable |
