. 2014 Aug 3;23(2):303–309. doi: 10.1016/j.jfda.2014.07.005

Table 3.

DPPH scavenging activities (IC₅₀ values) of the CE, EAF, AQF, and pure compounds as well as the control compound (gallic acid).

Test sample	IC₅₀ ± SD (μg/mL)
CE	96.09 ± 21.05^a
EAF	105.98 ± 8.32^a
AQF	224.21 ± 17.08^a
Gallic acid	32.53 ± 3.72^b
Rosmarinic acid	35.80 ± 3.79^b
Procyanidin dimer (B1)	27.59 ± 13.50^b

AQF = aqueous fraction; CE = crude extract; DPPH = 1,1-diphenyl-2-picrylhydrazyl-radical; EAF = ethyl acetate fraction; IC₅₀ = half maximal inhibitory concentration; SD = standard deviation.

IC₅₀ values of CE and fractions in μg equivalents of dry sample/mL.

IC₅₀ values in μg/mL of pure compounds.