Appearance : Light blue amorphous powder, lyophilized
Activity : GradeⅢ　200U/mg-solid or more
Stabilizers : Bovine serum albumin, borate.
Stability : Store at －20℃
Molecular weight : Approx. 140,000
Michaelis constant : 2.7×10－4 M (Ascorbate)
Inhibitors : cyanide, Na2S, diethyldithiocarbamate (Na)
Optimum pH : 5.5 – 6.5
Optimum temperature : approx. 45℃
pH Stability : pH 6.0－10.0 (25℃, 20hr)
Thermal stability : below 45℃ (pH 7.0, 30min)
Substrate specificity : This enzyme oxidizes ascorbic acid and several ascorbic derivatives.