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.
Used in In Vitro Diagnostic tests and Life Sciences, Research & Development
L-Ascorbic acid + 1/2 O2 —-> Dehydroascorbic acid + H2O. This enzyme is used for enzymatic determination of ascorbic acid and for eliminating the interferences of ascorbic acid in clinical analysis.
Armazenar a < -20ºC