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Sericin (364619)
Details:
Sericin is the colloid protein wrapping outer layer of silk.
Yellowish powder, soluble in water, ninhydrin reaction is positive.
Items Specifications
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


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