| | 1.sericin powder---main use: cosmetic
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.
2. Silk Amino Acids---main use: healthfood
made from degummed silk( fibroin) by biotechnology method,
molecular weight of 90Da, It' ' s soluble, PH value between 5 to 7, positive ninhydrin reaction.
3.Silk protein powder( fibroin powder) -main use: cosmetic
after special treatment silk, Using physical methods to smash, average size have 4 kinds : 2micron, 5micron, 10micron, 40 micron
molecular weight: 300, 000Da
4.Silk Peptide--main use: cosmetic
It' s hydrolyzed silk protein ( fibroin) with average molecular weight between 500-10000Da, white powder, soluble in water, its PH value between 5 to 7, positive ninhydrin reaction. | | |
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