1.Product Description
The product is also known as pancreatic digest of casein, which is used in the formulas need the casein pancreatin or trypsin digest. It is a kind of light yellow powder made from casein( a highly nutritional kind of protein extracted from milk), and a material which contains the amino acid and highly tryptophon as well. It is a basic material of various microbial culture medium to be used as the basic materials of biological fermentation, bio-pharmaceuticals and culture medium industries and so on.
2.Quality Standard
1）Sensory index
Items Requirements
Morphology Powder, no caking
Color Light yellow or milky white powder
Odor Endemic taste and odor of product, no other peculiar smell
Impurity No normal visible extraneous impurity
2)Physicochemical Index
Item                                             Pharmaceutical grade      Reagent grade
Total nitrogen (on DM) %    ≥8.0%                                       ≥12.0%
Amino nitrogen (on DM) % ≥2.5%                                       ≥3.0%
Ash (on DM) %                          ≤10.0%                                    ≤10.0%
Moisture %                                 ≤6.0%                                      ≤6.0%
pH (2% solution)                      5.0-8.0
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.
3.Application
Using for sterility test, it is used as the medium component of casein tryptone in fermentation process to produce antibiotic, extracellular protein, interferon,diphtheria toxoid, etc.
4.Usage：Fully dissolved and sterilized before use.
5.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).