Table 3: Ferric reducing antioxidant potential and total phenol content of P. virgatus extracts. The data represents mean ± S.D. of six FRAP and three TPC experiments.

Extracts/reference FRAP value (μmol Fe(II)/g)TPC
(μg GA/mg extract)

n-hex0.442 ± 0.1262.61 ± 0.017
DCM0.924 ± 0.4191.92 ± 0.001
EtOAc1.255 ± 0.5337.42 ± 0.010
MeOH 28.61 ± 0.2.184176.68 ± 0.032
Water5.69 ± 9.767.766 ± 0.029
Ascorbic acid13.05 ± 3.131