Product name: Donor:hydrogen peroxidase oxidoreductase
Appearance: Reddish brown amorphous powder lyophilized
Contaminants: Phosphatase ≤ 1.0×10-3 %
Activity: Grade III, 110 Purpurogallin U/mg-solid or more (RZ ≥ 2.0, containing approx. 30 % of stabilizers)
Stability: Stable at – 20°C for at least one year
Molecular weight: Approx. 40,000
Structure: Glycoprotein with one mole of protohaemin IX
Inhibitors: Cyanide, sulphide, fluoride, azide
Optimum pH: 6.0 – 7.0
Optimum temperature: 45°C
pH Stability: pH 5.0 – 10.0 (25°C, 20hr)
Thermal stability: below 50°C (pH 6.0, 10min)
EC # 1.11.1.7