Table 2.

Percent values of DPPH, OH^•, O₂⁻, H₂O₂ and Concentrations (IC₅₀), which inhibit DPPH^• and OH^• radicals at the rate of 50% in methanol extracts of FESB flowers compared with a positive controls.

	DPPH•		OH•		O2-	H2O2
	% Inhib. X plusmn; SEM	IC50 (μg/mL) X ± SEM	% Inhib. X ± SEM	IC50 (μg/mL) X ± SEM	% SARSA X ± SEM	% HPSA X ± SEM
FESB	70.82 ± 0.76	67.34 ± 4.14	68.67 ± 1.39	64.87 ± 4.68	51.58 ± 5.65	34.37 ± 12.28
BHT	51.95 ± 6.04	137.1 ± 0.59	66.04 ± 0.89	89.91 ± 4.13	47.96 ± 2.83	32.00 ± 2.16
α-toc.	–	–	–	–	36.20 ± 9.07	24.51 ± 4.04