EC 3.2.1.1 CAZY Family: GH13 From Aspergillus oryzae. Electrophoretically homogeneous. In 3.2 M ammonium sulphate. Specific activity: approx. 126 U/mg (40°C, pH 4.5, soluble starch as substrate). Contaminants: amyloglucosidase < 0.08%; xylanase 0.0001%; cellulase 0.02%. Stable at 4°C for > 4 years. As used in Megazyme Starch Damage method.