Peroxidases play a significant role in antioxidant defense system of living organisms. These enzymes are essential for maintaining cellular homeostasis, as they catalyze the degradation of harmful peroxides that would otherwise accumulate and induce oxidative damage.

BQC Peroxidase Activity Assay Kit relies on the ability of peroxidases to oxidize a specific substrate in the presence of hydrogen peroxide (H₂O₂), producing a colored substance with characteristic light absorption at 420 nm.

This kit is a sensitive and reproducible assay to measure peroxidase activity in biological samples such as plasma, tissue homogenates, cell lysates or plant extracts.