highly significantp < 0.01
A highly significant (p < 0.01) correlation of IC 50 was observed with TPC (R 2 = 0.988***, p < 0.001) and TFC (R 2 = 0.9494***, p < 0.001) (Table 5 ). β-Carotene scavenging activity The BPA of B. populneus showed the lowest IC 50 value (40.04 ± 3.1 μg/ml) as compared to other fractions viz.