| CAS No.: | 9000-90-2 |
|---|---|
| EINECS: | 9000-90-2 |
| Environmental Protection: | Yes |
| Color: | Brown |
| Kind: | Desizing Agent |
| Appearance: | Powder |
| Samples: |
|---|
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Alpha-Amylase is made of Bacillus Subtilis in the Fermentation and extraction method, is widely used in the liquefaction of starch sugar, alcohol, beer, monosodium glutamate, Fermentation industries and textile, printing & dyeing, desizing and etc.
1. Heat stability: Stable at 60 oC or below; Optimum operational temperature 0 -70 oC; Applicable to the liquefaction process of 90oC (highest).
2. PH Stability: More stable at PH6.0-7.0; Optimum operational PH below PH6.0; Serious inactive in PH5.0
3. Calcium ion concentration effects on activity enzyme: Calcium ion can improve the stability of enzyme activity; Enzyme activity completely lost without Calcium ion.
1. Specifications:
Industry grade 2000, 3000, 3500, 4000u/g;
2. Definition of enzyme activity: The amount of enzyme needed to hydrolyze 1mg of starch in one hour at pH6.0, 60 oC.
3, Industrial Standard: QB1805.1-93.
Brewing industry:
In beer-making process 0.3L of 20000u/ml is added into one ton of additive materials. mix well with water, then heat up to 95 to 97ºC and maintain at 100ºC for 30minutes until the liquefaction is completed with iodine test.
Alcohol industry:
In distilling process, raw material should be milled and pass through 1.5mm sieve. Mix well with in the ratio of 1 to 3.5 or 4. The temperature water of water is 45 to 55ºC with PH.6.5 to 7.0. Then 0.6L of enzyme is added into one ton of materials. heat in the container and maintain at 100±5ºCfor 100 minutes, cool down for saccherification.
MSG, Maltose and Glucose industry:
Mix raw Materials with water, adjust PH value and Then 0.6L of enzyme is added into one ton of materials. In batch liquefaction raise the temperature up to 95-100ºCrapidly, maintain for 30 minutes. In steam jet process, the temperature at outlet may reach 105ºC and maintain at 95ºC for 30 minutes until the required DE is obtained.
1. Manufacture in Maltose, monosodium glutamate: 6-8 u/g of material.
2. Beer brewing: add 6 u/g of the enzyme and keep at 85-90°C for 30 mins.
3. Textile desizing: 0.2% (2000 u/g) and and keep at 85-90°C for 30 mins. (It is suitable for the material which can not withstand high temperature such as the silk, chemical fiber, woven fabric of cotton, wool and etc.)
4. Other Industries: 6-8 u/g per gram of starch and the concentration of calcium ion is 150ppm
1. As the product has biological activity, please store in cool and dry place and avoid direct sunlight, heat and dampness; avoid storing with poisonous and harmful material
2. Direct sunlight and drenching should be avoided during transportation;
3. 20 kg per plastic woven bag or as your requirements.
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