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Sericin Powder Sericin is a kind of protein surrounding fibroin (silk protein), it’s yellowy powder, soluble in water, PH value between 5 to 7, and positive ninhydrin reaction. 　　·Quality Index Items Index Property White or light jasmine powder Solubility Soluble in water Polarity Collateral Amino Acid/Total Amino Acids ＞70% Total Nitrogen ≥13.5% Weight loss on drying ≤5.0% Residue on Ignition ≤4.0% PH Value 5.0-7.0 Heavry Metal（As Pb） ≤10ppm Arsenic ≤1ppm Bacteria/g ≤100 Coli Group（MPN）（个/100g） ≤30 Pathogenic Bacteria Not detected ·Utilizable Character： 1. Because in sericin, about 80% amino acid has hydrophilic lateral group, about 1/3 of which is serine which water absorption is 50 times high than that of glycerin. Sericin, as the raw material of cosmetic, has excellent moisture absorption and Anti-microbe ability. 2. Sericin protein can generate membrane on hair surface, the membrane has nice luster, fell well and spring it benefits for the shaping of hair. Further more, it will not adhere to hair. Meanwhile the harms to hair can be avoided. 3. Sericin has good ability of Anti-oxidation, it restrain the activity of polyhphenol oxidase (PPO) in food, it a nature anti-oxidant especially for rich grease food, cream and milk products. 4. Sericin has been widely applied in fibre coating, such as under-dress, bedsheet and leather, due to its skin caring, anti-microbe, and comfort.

Huzhou Xintiansi Bio-tech Co, Ltd　 Add：318#,Chuangye Road,Huzhou,Zhejiang,China Tel：86-572-2123171 E-mail:info@chinatiansi.com