ABDEX

What is ABDEX?

ABDEX is a thermostable enzyme, with excellent stability at low pH, which catalyzes the hydrolysis of alpha – 1, 4 glycosidic linkages to quickly reduce the viscosity of gelatinized starch to yield dextrin and oligosaccharides under a variety of process conditions. ABDEX is an endo amylase derived from selected strains of Bacillus sp

CHARACTERISTICS :

Activity 150,000 BAA u/g
Form Light brown liquid
Odour Slight fermentation
Solubility Miscible in water
PH 5.0 – 6.7
Specific Gravity 1.00 – 1.20

BENEFITS :

ABDEX provides the following benefits to the grain processors

  • Quick reduction in viscosities and higher solid throughput
  • Liquefaction at lower pH
  • Flexibility in process control

APPLICATION GUIDELINES:

ABDEX is suitable for use in a variety of liquefaction process designs:
Recommended conditions
PH Range Light brown liquid
Optimum PH 5.7 – 6.0
Time 90 – 140 minutes
Temperature  >850 degree C

EFFECT OF TEMPERATURE

The optimal temperature range is from 83 º C to 85º C (182 to 185º F), the stability being maintained over a temperature range from 77 º C to 86º C (170 to 187º F).

EFFECT OF PH

The Optimal pH for liquefaction enzyme is in the range of 5.7 to 5.8. The operational pH range is from 5.2 to 5.9 

Effect of PH

DE Profile

The DE studies have been done at a dosage of 0.6 kg/ MT of starch of ABDEX and at an optimum pH of 5.5. The DE development was best observed at 85 Degree C.

DOSAGE:

The optimum dosage of ABDEX in the slurry and liquefaction vessels depends on the processing parameters like source of raw material used, dry substance used, pH,
temperature and time. ABDEX works on starch derived from a range of raw materials like corn, rice, wheat, cassava etc. A dosage of 0.2 – 0.6 kg/MT of starch is recommended. The actual dosage and the dosages in the slurry and liquefaction vessels have to be determined in actual plant conditions.

CONDITIONS TO CEASE ENZYME REACTION

Enzymes are active only at specific conditions like pH and Temperature. Their activity can be ceased by varying the optimum temperature and optimum pH conditions. For ABDEX, this would be either increasing the temperature beyond its optimum that is 90 °C or reducing it below 50°C and simultaneously reducing the pH below 4.5.

PACKING

ABDEX is available in 25 Kg HDPE drums.

STORAGE AND SHELF LIFE

ABDEX should be stored in cool and dry environment. ABDEX is stable for 6 months under these conditions.