Antioxidant responses of some common medicinal plants grown in copper mining areas

► Effect of high bioaccumulated Cu on antioxidant activities in medicinal plants. ► Phenolic, DPPH scavenge, Fe3+ reducing, Fe2+ chelating, anti-lipid peroxidation assay. ► Anti-lipid peroxidation was less for medicinal plants with high Cu levels. ► High Cu levels correlated with low inhibition of lipid peroxidation activity.