详情
High temperature alpha
amylase enzyme,
food additive, wine making.
Brief
introduction
GR-M**4 is a fungal α*-‐amylase, which is produced by Aspergillus
oryzae var fermentation action, via purification and refine. The
enzyme can be not only used for gelatinization (liquidation) of
starch, but for saccharity (produce malt syrup).
The amylase is called incision enzyme, which can hydrolyse α*1,4
glucoside bond of gelatinized starch, amylose, branch-chain
starch solution, to produce soluble dextrin, meanwhile a small
number of maltose and glucose. If proceed hydrolysis reaction use
GR-M**4 for long time, there will produce syrup containing high
maltose and a bit glucose. The syrup have low-hygroscopicity,
difficult to crystal and high level fermentability.starch
molecular, reduce viscosity of gelatinized starch, to produce
soluble dextrin and oligosaccharide.
Typical
properties
|
Appearance
|
amber to brown solution
|
|
Activity
|
≥*9,**0 u/ml
|
|
pH
|
5.**6.5
|
|
Proportion
|
about 1.*1g/ml
|
Enzyme activity unit
definition:
Under specific analyze conditions, 1 g solid enzyme ( or 1 ml
liquid enzyme) can liquify 1.0g definitive soluble starch
substrate in one hour. Assay method is on the basis of QB
*********1.
Application
Effect of PH
- Optimum PH range: 4.**5.4
- Effective PH range: 4.**6.6
- GR-M**4 will be the most stable at PH6.**-‐8.0.
- If the stability of enzyme is an important factor in
operation, reaction should be done above PH 5.5, and
below PH 5.5 if improved reaction rate.
Effect of temperature
GR-M**4 can be effectively hydrolyse starch in a range of
***-‐*5℃ with the optimum temperature of *0℃. If the
concentration of starch is too high, operating temperature can be
increased to *5℃. The optimum temperature will be changed at
***-‐*5℃ affected by PH.
Dosage
Dosage is determined by technology conditions generally. Under
normal conditions, reaction rate will be improved with the
increase of enzyme concentration.
Dosage of GR**0 is 0.***0.*5% of dry materials which can liquify
and saccharify starch under optimized condition. Recommended
dosage is *******0ml/t drys.
Enzyme inactivation
- Increase temperature to ******0℃, and keep ****0 minutes.
- Decrease PH value to below 4.0, adjust temperature and PH.
Enzyme inhibitor
- Heavy metal ion can inhibit activity of GR-M**4, particularly
is copper and lead.
- Zinc, nickel and ferric ion also can play inhibiting effect
in high concentration.
Packaging
The product is packed in *0kg food grade polyethylene drum. Large
package also can be provided.
Security & usage of
enzyme
Avoid inhaling enzyme dust and enzyme fog. Please rinse with
water more than *5 minutes if splash to hands or eyes carelessly.
For details, please see individual security data.
Technical
services
My company has comprehensive customer service network, timely and
thoughtful provide all necessary technical services.
| 国家: |
China |
| 型号: |
GR-M304
|
| 离岸价格: |
2 ~ 8 / Kilogram ( Negotiable ) （面議）
获取最新报价
|
| 位置: |
china |
| 最小订单价格: |
2 per Kilogram |
| 最小订单: |
10 Piece |
| 包装细节: |
standard export packaging |
| 交货时间: |
within 7-20 days after sign contract |
| 供应能力: |
30 Ton per Month |
| 付款方式: |
T/T |
| 產品組 : |
Textile chemicals
|
