Description
Quality standard
(1) Sensory index
| Items | Requirements |
| Morphology | Powder, no clumping |
| Color | Light yellow or light brown powder |
| Odor | Inherent smell of the product, no other peculiar smell |
| Impurity | No visible impurity |
(2) Physicochemical index
| Items | Industrial grade | Pharmaceutic grade |
| Protein
(on DM ) % |
≥4.0 | |
| Loss on Drying % | ≤7.0 | |
| Ash
(on DM ) % |
≤3.0 | |
| PH (2% solution) | 5.0—7.0 | |
| Acid solution &
alkalescence high-pressure test |
__ |
|
| Solubility,(2% water) | Soluble | Complete |
