Table 2.

Antioxidant activities of compounds 1–5.

Compound	ORAC (U/mol) a
1	7.90 ± 0.52
2	6.44 ± 0.48
3	2.16 ± 0.21
4	4.60 ± 0.30
5	4.80 ± 0.25
Quercetin b	2.59 ± 0.21

Note: U was equivalent Trolox of 1 mol. ^a Mean ORAC values ± SD (n = 10) are shown. ^b Used as positive control.