Silk peptide:
- 产品简介
Enzymatic degradation of silk fibroin to form a water-soluble polypeptide substance. The average molecular weight is generally between 500 and 30,000, with good water solubility, white or light yellow powder, and the ninhydrin reaction is po
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详情介绍
Enzymatic degradation of silk fibroin to form a water-soluble polypeptide substance. The average molecular weight is generally between 500 and 30,000, with good water solubility, white or light yellow powder, and the ninhydrin reaction is positive. Generally used in skin moisturizing and hair care products.
Properties: white or off-white powder
PH value: 4.5-6.5
Total nitrogen (%): ≥14.5
Loss on drying (%): ≤5.0
Ignition residue (%): ≤3.0