Product Description
The product is an off-white powder prepared by taking casein and hydrochloric acid reaction under high temperature and pressure to neutralize the hydrolysate with sodium hydroxide and then discolor. Amino acids of it have appeared in their original form and are highly available for use in various media.
Quality Standards
1. Sensory Index
Items | Requirements |
Morphology | Powder, no caking |
Color | Light yellow or brown powder |
Odor | Endemic taste and odor of product, no other peculiar smell |
Impurity | No normal visible extraneous impurity |
2. Physicochemical Index
Item | Reagent grade |
Total nitrogen (on DM) % | ≥8.3% |
Amino nitrogen (on DM) % | ≥3.0% |
Ash (on DM) % | ≤27.0% |
Moisture % | ≤6.0% |
Acidsolution & alkalescence high-pressure | Pellucid |
Solubility (2% solution) | Pellucid |
Note: The physicochemical index is general specification but we can customize product according to the requirements of customer.
Application
It is suitable for the culture medium of drug resistance test and the culture of salt-tolerant microorganism culture.
In sterility test, it is used as the medium component of casein tryptone in fermentation process to produce antibiotic, extracellular protein, interferon,diphtheria toxoid, etc.
Usage
Fully dissolved and sterilized before use.
Packaging
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).