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| Items | Requirements |
| Morphology | Powder and no caking phenomenon |
| Color | Light white or white |
| Odor | Endemic taste and odor of product, no other peculiar smell |
| Impurity | No normal visible extraneous impurity |
| Item | Industrial Grade | Pharmaceutical Grade | Reagent Grade |
| Total nitrogen (on DM) % | ≥7.5% | ≥7.5% | ≥7.5% |
| Amino nitrogen (on DM) % | ≥3.5% | ≥3.5% | ≥3.5% |
| Ash (on DM) % | ≤15.0% | ≤15.0% | ≤15.0% |
| Moisture % | ≤6.0% | ≤6.0% | ≤6.0% |
| PH (2% solution) | 4.5–7.5 | ||
| Acid solution & alkalescence high-pressure | —— | Pellucid | |
| Solubility (2% solution) | Slightly soluble | Complete lysis | |
Yeast peptone is suitable for microbial culture and provides comprehensive nutrition for bacterial growth.
Fully dissolved and sterilized before use.
Compound Paper Bag with 25kg/bag or Cardboard Bucket. Reagent-grade products are packaged with 250g plastic bottle (or be packed according to the measurement requirements of customer and OEM Package as well).