α-Amylase(Bacilus subtilis)；1,4-α-D-Glucan-glucanohydrolase CAS 9000-90-2

Other names: Medium temperature amylase; Liquefied amylase; Liquefiable enzyme; α- 1,4 dextrinase; Bacterial amylase; α- Starch enzyme; Dextrinase

CAS number: 9000-90-2

Grade: BR

Vitality: ≥ 5u/mg

Definition of activity: 1ml of enzyme solution liquefies 1 gram of soluble starch in 1 hour at 60 ℃ and pH 6.0, which is a unit of enzyme activity expressed in u/ml

Moisture content: ≤ 8%

Thermal stability: Stable below 60 ℃, with an optimal operating temperature of 60-70 ℃, suitable for liquefaction processes up to 90 ℃

PH stability: It is relatively stable between pH 6.0 and 7.0, with an optimal pH of 6.0. Severe inactivation occurs below pH 5.0

The effect of calcium ion concentration on enzyme activity: Calcium ions have an increasing effect on the stability of enzyme activity. Without calcium ions, enzyme activity is completely lost

Character: Yellowish brown or almost white powder. Extracted from Bacillus subtilis, soluble in water. Under moderate temperature conditions, this enzyme can rapidly hydrolyze the refining of starch molecules α- 1,4 glucosidic bonds arbitrarily cut off starch molecules from the inside to form short bond dextrins with varying lengths and a small amount of low molecular sugars. Both linear and branched starch decompose in an irregular form, resulting in a rapid decrease in the viscosity of starch slurry (i.e. liquefaction, also known as liquifying enzymes). When the storage temperature is not greater than 25 ℃, the enzyme activity shall not be less than 90% of the labeled enzyme activity within six months; To improve enzyme activity stability, the calcium ion concentration should not be less than 50-70PPM; Metal ions such as iron, copper, mercury, zinc, and certain surfactants have a certain impact on enzyme activity. When the liquefaction temperature is low or the material concentration is too high, it is necessary to increase the amount of enzyme used appropriately; When the pH of the material is greater than 8.0 or less than 5.0, it will cause a loss of enzyme activity

Purpose: Biochemical research. It can quickly liquefy starch and generate low molecules.

Storage: 2-8 ℃

Company Information

Nanjing Duly Biotech Co.,Ltd 

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