One.Product presentation
Glucoamylase (Glucan 1, 4-α-glucosidase) is made from Aspergillus niger through cultivation and extraction technique. This product can be used in the industries of alcohol, distillate spirits, beer brewing, organic acid, sugar and the glycation of antibiotic industrial material.
Two. Product specification and quanlity index
Item Index Item Index
Appearance Light-brown liquid
Light-yellow powder Temperature 40-65 degrees
Activity u/g(ml) 100000、200000、260000 Best temperature 60 degrees
Smell No irritative smell Water concent ＜8%
pH range 3.0-5.5 40mesh sieve ≥90%
Best pH 4.0-4.5 Volume weight ≤1.25g/ml
Three.Define of enzyme activity
In the condition of 40 degrees, pH4.6, one gram enzyme powder or liquid decomposed soluble starch in one hour to produce 1mg Glucose, which is defined as one activity unit .it is showed by u/g or u/ml.
Four.Using methods
1. Beer brewing
This product can be added before fermentation and saccharification start, which can improve fermentation.Recommended using amount: 0.1-0.25L per ton malt.
2. Alcohol business
When the material is boiled and temperature is reduced to 60 centi grade, you can add glucoamylase.Recommended amount:0.4-0.6L unit per ton dry material.Temperature is kept about 30-60 mins, and after temperature of material get cold, you can ferment it.
3. Starch sugar business
After this material is liquefied, PH is adjusted to 4.2-4.5, and temperature is reduced to 60 centi grade, and then glucoamylase is added to start to sacharify. Recommended amount: 100-300 u per gram material.
4. Monosodium, Antibiotics business
After starch is liquefied and temperature is reduced to 60 centi grade, you can change PH to 4.5, and then add gulcoamylase.Recommended amount:100—300 unit per gram material.