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1. Product Description
The yeast extract powder is made from fresh beer or bread yeast by autolysate of modern biotechnology or enzymatic hydrolysis, which is a powder to be formed by separation, refinement and concentrated spray drying. And it is a mixture of amino acids, peptides, water-soluble vitamins and sugars (mainly mean oligosaccharides and trehalose).
2. Product Standard
1) Sensory Index
Items |
Requirements |
Morphology |
Powder |
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
Industrial grade |
Reagent grade |
||
Total nitrogen (on DM) % |
≥7.5% |
≥8.0% |
≥8.0% |
Amino nitrogen (on DM) % |
≥2.5% |
≥3.0% |
≥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 |
||
Acidsolution & alkalescence high-pressure |
—— |
Pellucid |
|
Solubility (2% solution) |
Slightly soluble |
Complete lysis |
|
Note: The physicochemical index is general specification but we can customize product according to the requirements of customer.
3. Application
It is widely used in the fermentation industry of new biomedicine, amino acid, vitamin, organic acid, enzyme preparation, probiotic fermentation, biological preservative, biological pesticide, microecologics, etc.
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