الوصف
High temperature alpha amylase
enzyme,
food additive, wine making.
Brief
introduction
GR-M**4 is a fungal α*-â€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.**-â€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
***-â€*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
***-â€*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.
| بلد: |
China |
| نموذج رقم: |
GR-M304
|
| سعر فوب: |
2 ~ 8 / Kilogram ( Negotiable ) (قابل للتفاوض)
أحصل على آخر سعر
|
| الموقع: |
china |
| سعر الحد الأدنى للطلب: |
2 per Kilogram |
| الحد الأدني للطلب: |
10 Piece |
| تفاصيل التغليف: |
standard export packaging |
| موعد التسليم: |
within 7-20 days after sign contract |
| القدرة على التوريد: |
30 Ton per Month |
| نوع الدفع: |
T/T |
| مجموعة المنتج : |
Textile chemicals
|
