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Silk Amino Acids

　　It is also called the " Silk Essence " or “Silk 90”, which the main composition are free amino acids and less amount of di-peptide and tri-peptide with the average molecular weight of 90, It’s soluble, PH value between 5 to 7, positive ninhydrin reaction.

　　·Quality Index

Items	Index (Food Grade)	Index (Common Grade)
Property	White or jasmine powder, soluble in water, sweet taste.	White or jasmine powder, soluble in water, sweet taste.
Differentiation	positive ninhydrin reaction	positive ninhydrin reaction
Total nitrogen	≥14.5%	≥14%
Weight Loss on drying	≤2.5%	≤4%
Residue on ignition	≤1.0%	≤4%
PH value	5.0-7.0	5.0-7.0
Total Glysin, L-alanine, L-senine	≥85%	≥80%
Heavy Metal ( as Pb)	≤10ppm	≤20ppm
As	≤0.5ppm	≤1ppm
Bacteria	≤100	≤100
Coli group (MPN)（个/100g）	≤30	≤30
Pathogenic Bacteria	Not detected	Not detected

·Utilizable Character：
1. It is made from degummed silk by biotechnology, the total content of alanine, glycin and serine is above 85%. It’s high nutritional material of obvious function.
2. Not only can glycin and serine be used as the essential materials of synthesizing protein in organism, but also as the predecessor of synthesizing the glutathione (GSH, SSG), which plays a certain preventive function for heart disease and cancer. Meanwhile, the glycin also has the detoxication effects for some aromatics which can cause cancer. Its rich alanine also help promoting the metabolism of alcohol in human body and protecting liver. Tyrosine also have

obvious effect on preventing the old from Alzheimer disease.
3. Silk amino acid is very easy to permeate the derma layer of skin and absorbed easily, nurturing skin very well. Due to its action in the enzyme metabolism, silk amino acid can keep and adjust wet, prevent skin from ultraviolet radiation, restrain splash generation, anti-aging for skin.

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