| ≥1 piece | 3 |
1. Product Description
The yeast extract is made from fresh beer or bread yeast by autolysate of modern biotechnology or enzymatic hydrolysis, which is a paste to be formed by separation, concentration, spray and 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 |
Paste |
|
Color |
Light yellow or brown |
|
Odor |
Endemic taste and odor of product, no other peculiar smell |
|
Impurity |
No normal visible extraneous impurity |
2)Physicochemical Index
|
Item |
Industrial grade |
Pharmaceutical grade |
Reagent grade |
|
Total nitrogen (on DM) % |
≥6.5% |
≥7.0% |
≥7.0% |
|
Amino nitrogen (on DM) % |
≥2.0% |
≥2.5% |
≥2.5% |
|
Solid content % |
≥60.0% |
≥65.0% |
≥70.0% |
|
Chloride % |
≤1.8% |
≤1.5% |
≤1.5% |
|
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.