Silk amino acids

Item

Standard

Appearance

Powder in light white or light yellow ,liable to deliquesee

PH Value

5-7

Loss on drying

≤5

Residue on lgnition

≤ 3.5

Nitrogen

≥14

Heavy Mental

≤10

Arsenic

≤2

Number of Acrobic Bactcrial

≤300

Pathogenic Bacteria

Can’t be dctccted