. 2010 Jul 16;15(7):4934–4946. doi: 10.3390/molecules15074934

Table 2.

Free radical scavenging abilityof the extracts and fractions from AST by the DPPH and ABTS assays.

Extracts/fractions	Free radical scavenging ability
Extracts/fractions	DPPH ^a	ABTS ^b
WE	1081.7 ± 59.7	886.9 ± 3.3
70% ethanol extract	823.8 ± 33.4	583.3 ± 2.5
95% ethanol extract	477.7 ± 15.5	244.4 ± 2.5
PEE	15.8 ± 0.8	4.5 ± 0.3
EA	208.5 ± 4.6	99.6 ± 0.9
BU	143.6 ± 2.6	79.0 ± 1.1
WT	536.6 ± 16.9	362.1 ± 1.1

^a DPPH expressed in μM ascorbic acid/100 g dry weight of AST; ^b ABTS expressed in μM trolox /100 g dry weight of AST. Each value is the mean ± SD of triplicate measurements.