Food grade tannase enzyme additive prevent tea cream
The tannase is produced by submerged fermentation of a selected fungal strain followed by purification, formulation and drying. The enzyme finds wide applications in various industries including food and beverage, feed, cosmetics and leather, where the enzyme plays its role by modifying tannins in desirable ways.
MECHANISM
Tannin acyl hydrolase, commonly called tannase, catalyzes the hydrolysis of ester and depside bonds in such hydrolysable tannins as tannic acid, thereby releasing glucose and gallic acid in the end. By the catalysis with tannase, gallic acid glucose ester with tannic acid is successively hydrolyzed into 1,2,3,4,6-gallic acid tannin, 2,3,4,6-tetrapalic acid tannin and two monomers gallic acid-glucose, and finally gallic acid and glucose are produced. The process is illustrated as the following:
APPLICATIONS
The enzyme is used to improve taste and damage the haze sensitivity of phenols in tea, remove anti-nutritional effect of tannins in feed, and make tannin a better tanning agent for leather, and so on. It can also be used to produce non-galloylated catechins.
PRODUCT STANDARD
The product complies with GB1886.174.
|
No. |
ITEMS |
INDEX |
|
|
1 |
Particle size (%<40 mesh) |
≥80 |
|
|
2 |
≤8.0 |
||
|
3 |
Lead/(mg/kg) |
≤5.0 |
|
|
4 |
Arsenic/(mg/kg) |
≤3.0 |
|
|
5 |
Total viable count/(CFU/g) |
≤50000 |
|
|
6 |
Coliform Bacteria/(CFU/g) |
≤30 |
|
|
7 |
Escherichia coli |
(CFU/g) |
<10 |
|
(MPN/g) |
≤3.0 |
||
|
8 |
Salmonella/(25g) |
Not Detected |
|
PRODUCT SPECIFICATION
Light yellow powder. Color may vary from batch to batch. Color intensity is not an indication of enzyme activity.
APPLICATION RECOMMENDATION
The recommended dosage is 0.25-1kg/t DS. The dosage has to be optimized based on each application, the raw material specifications, product expectation and processing parameters. It is better to begin the test with the convenient volume.
SAFE HANDLING PRECAUTIONS
Enzyme preparations are proteins that may induce sensitization and cause allergic type of symptoms in susceptible individuals. Prolonged contact may cause minor irritation for skin, eyes or nasal mucosa. Any direct contact with human body should be avoided. If irritation or allergic response for skin or eyes develops, please consult a doctor.
WARNINGS
PACKAGE AND STORAGE
Ø Package： 25kg/drum.
Ø Storage： Keep sealed in a dry and cool place and avoid direct sunlight.
Ø Shelf life: 12 months in a dry and cool place.
| E-mail: sunson@chinaenzymes.com |
| Tel:86-20-86586087 86-10-58246891 |
| Fax:86-20-86586895 86-10-58246862 |
