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mesophilic alpha-amylase
mesophilic alpha amylase
Mesophilic α-amylase is an amylase preparation refined by Bacillus subtilis through fermentation and post-extraction technology. It can hydrolyze starch into long and short glutinous essence and a small amount of low-molecular-weight carbohydrates, glucose and maltose endonuclease, so that the viscosity of starch glutinous rice can drop rapidly.
◆Widely used in starch sugar, alcohol, monosodium glutamate, beer, feed, textile printing and dyeing desizing and other industries.
◆Quality index
| project | index |
| Exterior | Solid as light yellow powder |
| Enzyme activity u/g(ml) | 2000-20000 |
| PH Scope of application | 5.8-7.0, the optimum pH value is 6.0 |
| proper temperature | It is more stable below 60, and the optimum temperature is 60-70℃ |
| The influence of metal ions | To improve the stability of enzyme activity, the calcium ion concentration should be 50-70ppm |
| Product Standards | GB8275-2009 |
◆Definition of enzyme activity: 1g of solid enzyme powder, liquefaction of 1g of soluble starch in 1h under the condition of 60℃ and PH6.0
The amount of enzyme is a unit of enzyme activity, expressed in u/g (ml).
◆Application:
1. Textile industry:
Use refined amylase as desizing agent, suitable for silk, chemical fiber, cotton and wool fabrics that are not resistant to high temperature
In the desizing process, the amount of enzyme added is about 0.2% (2000u/g), and the water bath is 50-80 ℃ for 20-40 minutes.
2. Fermentation industry:
The concentration of starch slurry is 16-17Be, adjust the pH to 6.2-6.4, and add 0.2% calcium chloride (according to the weight of raw materials)
amount), and then add amylase to the starch slurry (6-8 units of enzyme per gram of raw material), fully
After mixing, heat to 85-90°C and liquefy for about 30 minutes.
3. Beer production:
When using rice and corn as auxiliary materials, first grind the powder through a sieve hole of 40 mesh or more, and add it after mixing in the gelatinization pot.
Amylase, the amount of enzyme added is about 6 units per gram of raw material, and it is liquefied at 85-90 ° C for 30 minutes.
◆Notes:
1. This product is completely soluble in water and is safe and reliable to use. When operating, be careful not to directly contact the enzyme preparation
Contact, if there is contact, rinse with water in time.
2. Use it as soon as possible after opening the original package, and keep the rest of the package closed.
3. This product should avoid rain and sun exposure during storage and transportation, and it is forbidden to mix and store it with toxic and harmful substances.
◆Product packaging and storage
1. The liquid type of this product uses 25kg/200kg non-toxic plastic barrels; the standard packaging of the solid type uses film bags
Packing, 1kg per bag. It can also be packaged according to customer requirements.
2. This product should be stored in a cool and dry place below 25°C, avoid high temperature and direct sunlight, and store for half a year.
Online Message
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