Figure 2: Comparative antioxidant activity. A: Total antioxidant activity by phosphomolybdate assay and B: FRAP activity. CdME, CvME, SaME and TcME stands for methanolic extract of Cynodon dactylon, Clerodendrum viscosum, Spilanthes acmella and Terminalia chebula, respectively. Total antioxidant activity was expressed as |g ascorbic acid equivalent (AAE)/mg plant extract. FRAP values were expressed as |g Fe2+ equivalent (FE)/mg plant extract.