| CAS No.: | 9000-90-2 |
|---|---|
| Formula: | No |
| EINECS: | 232-565-6 |
| Classification: | Biochemical Reagents |
| Grade: | Br |
| Specific Usage: | For Biological Purpose |
| Samples: |
|---|
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| Product Parameters | |
| Grouping | Enzyme |
| Keywords | Amylase(Bacilus subtilis) |
| Brand | NJDULY |
| Model | E0003 |
| Place of Origin | Nanjing, China (Mainland) |
| Payment | T/T |
| Port | Shanghai |
| Supply Capacity | 100 Piece/Pieces per Month |
| Packing | 250g/Piece |
| To Find Out More, Click Here | |
English Name: α - amylase (Bacilus subtilis); 1,4 - α - d-glucan-glucanohydrolase
Other names: medium temperature amylase; liquefying amylase; liquefying enzyme; α - 1,4 dextrinase; bacterial amylase; α - amylase; dextrinase
CAS No.: 9000-90-2
Grade: BR
Activity: ≥ 4000U / g or 50U / mg for protein
Activity definition: 1 gram of 1 ml enzyme solution liquefying soluble starch for 1 hour at 60 ºC and pH 6.0 is an enzyme activity unit, expressed in U / ml
Moisture content: ≤ 8%
Thermal stability: it is stable below 60 ºC, and the most suitable temperature is 60-70 ºC, which can be applied to the liquefaction process up to 90 ºC
PH stability: stable at pH 6.0-7.0, optimal pH 6.0, serious deactivation below pH 5.0
The effect of calcium ion concentration on enzyme activity: calcium ion can improve the stability of enzyme activity. Without calcium ion, enzyme activity is completely lost
Properties: yellowish brown or almost white powder. It is extracted from Bacillus subtilis and dissolved in water. Under the medium temperature condition, the enzyme can hydrolyze the refined α - 1,4 glucoside bond of starch molecule rapidly, cut off the short bond dextrins and a small amount of low molecular sugars randomly from the inside of starch molecule. Both amylose and amylopectin are decomposed in an irregular form, so that the viscosity of starch pulp drops rapidly (i.e. liquefaction, also called liquefying enzyme). When the storage temperature is no more than 25 ºC, the enzyme activity will be kept no less than 90% of the labeled enzyme activity within half a year; in order to improve the stability of enzyme activity, the concentration of calcium ion should be no less than 50-70ppm; metal ions such as iron, copper, zinc and a certain surfactant have certain influence on enzyme activity. When the liquefying temperature is too low or the material concentration is too high, the enzyme consumption must be increased properly; when the material pH is greater than 8.0 or lower than 5.0, the enzyme activity will be lost
Purpose: biochemical research. It can make starch liquefy rapidly and produce low molecular weight.
Storage: 2-8 ºC
Nanjing Duly Biotech Co.,Ltd
has been established for 11 years. It is mainly engaded in biological and chemical reagents,including enzyme reagents, proteins, nucleic acids, pigments, amino acids, vitamins,carbohydrates, buffers, surfactants,culture media and Separation of materials and kits.There are more than 10,000 products in total.
Our company's aim is to provide customers with the best quality products and the most intimate service.Personnel has been trained; every batch of material is checked; each procedure guarantees the quality; every bag of our products is top grade;service is thoughtful all the time.The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2009.
Q2:How to contact with us?
Answer:Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Can you give me a discount price?
Answer:Surely,It depend on your qty.
Q4: How can i get a sample?
Answer:Free sample is available,but freight charges will be at your account and the charges will be return to you dudect from your order in future.
Q5:What are the main categories of products sold by the company?
Answer: It is mainly engaded in biological and chemical reagents,including enzyme reagents, proteins, antibiotics, plant hormones, nucleic acids, pigments, amino acids, vitamins, carbohydrates, buffers, surfactants, culture media and Separation of materials and kits.
Q6:Is the company mainly engaged in small packaging or large packaging?
Answer: Mainly do small packaging reagents, large packaging also do, specific can ask customer service personnel.
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