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Silk Amino Acid

Other name: Sericin powder
Specification: Total protein 90% MIN
CAS No.: 60650-89-7

Sericin is a pure natural protein extracted from silkworm cocoon (cocoon shell, cocoon coat) and silk by biological technology. It contains 18 amino acids, among which serine and aspartic acid are the most abundant. In addition the human body essential eight kinds of amino acids complete. Sericin contains about 80% amino acids of hydrophilic side groups.

White to yellowish powder
Soluble in water
Polar amino acids account for 70% of the total amino acids >
Total nitrogen 14% or higher
Dry weight loss is 5.0%
Burning residue 4.0%
PH 5.0 to 7.0
Heavy metal (Pb meter) ≤5ppm

Application features:
1. As sericin contains about 80% amino acids of hydrophilic side groups, sericin, as a cosmetic raw material, has excellent moisture control and moisture retention effects. Sericin also has special film-forming property, which can produce silky, glossy and elastic film on the attachment, which can make the skin and hair surface form protective film, keep moisture, prevent damage to the skin cuticle, prevent ultraviolet radiation, make the skin smooth and tender, and increase the elasticity of the hair.
2. Serine content in sericin accounts for nearly 1/3, so it is widely used in the coating materials of cotton, linen, underwear and clothing as well as chemical fiber fabrics, which can increase the air permeability of chemical fiber fabrics and have the health care functions such as anti-bacterial and preventing skin prurticant.

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