Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails.
Items
Standards
Appearance
Light yellow powder
Protein
Not less than 85.0%
pH (5% water solution)
4.5 ~ 6.5
Moisture
Not more than 6.0%
Total plate count
Not more than 1000 cfu/g
Coliforms
Not more than 30 MPN/100g
Pathogens
Negative
Pb
Not more than 1.0 mg/Kg
Hg
Not more than 0.5 mg/Kg
As
Spec-Chem Ind.
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