Description
Quality standard
(1) Sensory index
Items | Requirements |
Morphology | Powder, no clumping |
Color | Light yellow or milky white powder |
Odor | Inherent smell of the product, no other peculiar smell |
Impurity | No normal visible extraneous impurity |
(2) Physicochemical index
Items | Soya Peptone | ||
Industrial grade | Pharmaceutical grade | ||
Total nitrogen
(on DM) % |
≥8.0 |
||
Ash
(on DM) % |
≤15.0 | ||
Amino nitrogen
(on DM) % |
≥2.0 |
||
Loss on Drying % | ≤7.0 | ||
PH (2% solution) | 5.0—7.0 | ||
Acid solution &
alkalescence high-pressure test |
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|
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Solubility,(2% solution) | Slightly Soluble | Complete |