Antioxidant activities of Lampaya medicinalis extracts and their main chemical constituents

Table 1 Total phenolics, flavonoids contents and antioxidant activities of diferent fractions from HEE of L. medicinalis

Extract	Total phenolics^a	Total flavonoids^b	IC₅₀ABTS^c	IC₅₀DPPH^c	FRAP^d	IC₅₀β-carotene^c	IC₅₀molybdate^c	IC₅₀Hexacyanoferrate (III)^c
HEE	49.18 ± 0.86^e	60.04 ± 6.13^e	11.59 ± 1.21^e	13.79 ± 0.76 ^{e, f}	38.29 ± 1.79^e	189.07 ± 3.13	48.31 ± 3.13	61.56 ± 5.13
HF	----	11.14 ± 2.24	56.32 ± 1.70	27.17 ± 0.64	----	-----	-----	-----
DF	27.64 ± 0.39	29.29 ± 3.58^{f, g}	19.74 ± 1.17^f	20.35 ± 0.98	56.90 ± 4.57	252.60 ± 4.87	26.93 ± 2.09	110.5 ± 3.13
EAF	101.26 ± 1.07	66.26 ± 3.3^e	5.16 ± 1,09	9.94 ± 0.18	158.18 ± 5.79	65.41 ± 3.56	41.86 ± 1.56^e	40.23 ± 3.89
BF	36.10 ± 0.37	31.64 ± 2.99^f	14.12 ± 1.45^e	15.09 ± 1.05^e	109.36 ± 5.90	117.69 ± 2.98	37.33 ± 2.19^f	141.62 ± 4.23
RWF	48.41 ± 0.9^e	23.39 ± 1.77^g	22.27 ± 2.10^f	12.49 ± 0.97^f	31.79 ± 4.56^e	370.96 ± 3.67	40.47 ± 1.86^e,f	162.45 ± 5.11

HEE (crude hydroethanolic extract), HF (hexane fraction), DF (dichlorometane fraction), EAF (ethyl acetate fraction), BF (n-butanol fraction), RWF (residual water fraction).
All values were expressed as Means ± SD (n = 3).
^aexpressed in mg Gallic acid equivalent/g extract.
^bexpressed in μg Quercetin/mg extract.
^cexpressed in μg/mL extract.
^dexpressed in mg Trolox equivalent/g.
^{e, f, g}extract in the same column followed by different letter are not significantly different (p < 0.05).

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