Table 3.

Antioxidant activity of isolated compounds. Each value represents IC₅₀ of average of three repeated experiments ± standard error (S.E.).

Ser. No.	Compounds	DPPH (IC50) mM
1	F9	02.17 ± 0.49
2	CB18	02.93 ± 0.51
3	Vitamin C	0.029 ± 0.47

All isolates exhibited IC₅₀ in millimolar (mM) range. Their results were not promising as compared to vitamin C. This effect could stem from the absence of any functional groups capable of reduction.