Table 1
Total phenolic contents and radical scavenging activity of Geranium thunbergii solvent-partitioned fractions

	TPC2) (mg/g)	DPPH radical scavenging activity (%, μg/mL)				ABTS radical scavenging activity (%, μg/mL)
		25	50	100	200	25	50	100	200
		HF1)	83.72±5.044)E5)	7.24±1.01Ec6)	13.43±0.67Ec	25.03±0.67Db	45.41±1.57Ea	0.50±1.09Ed	6.63±0.33Gc	19.65±1.36Db	42.76±0.91Da
CF	148.83±1.40C	12.60±0.67Dd	26.24±1.01Dc	42.27±1.07Cb	71.93±1.83Da	6.82±1.28Ed	21.36±1.90Ec	38.16±2.71Bb	74.33±1.22Ba
EF	604.28±1.95A	54.64±0.35Bc	80.88±1.34Bb	93.31±0.25Aa	93.98±0.10Ba	47.14±1.58Bc	80.12±2.41Cb	99.50±0.17Aa	99.99≥Aa
BF	465.65±4.88B	43.70±0.10Cc	73.48±1.15Cb	92.21±0.60Aa	92.76±0.10Ba	38.53±0.50Cd	70.72±1.28Dc	97.37±1.14Ab	99.99≥Aa
WF	98.52±1.18D	8.78±3.37DEc	13.76±3.80Ec	28.01±2.64Db	45.80±3.48Ea	10.43±7.19Dc	15.54±6.58Fc	33.66±5.68Cb	57.69±5.10Ca
BHA3)		9.94±3.39DEd	27.02±3.57Dc	64.86±2.23Bb	87.85±0.83Ca	54.87±4.02Ac	87.70±2.94Bb	99.99≥Aa	99.99≥Aa
AA3)		76.85±3.68Ab	96.52±0.29Aa	96.57±0.25Aa	96.91±0.25Aa	50.84±4.51ABb	99.05±0.92Aa	99.99≥Aa	99.99≥Aa

HF, n-hexane fraction; CF, chloroform fraction; EF, ethyl acetate fraction; BF, butanol fraction; WF, water fraction; BHA, butylated hydroxyl anisole; AA, ascorbic acid.
TPC was determined with reference to the standard curve of gallic acid content of samples using spectrophotometer.
Positive controls were used butylated hydroxyl anisole and ascorbic acid.
Data represent the means SD of 3 determinations.
^A-GMeans of the different superscripts within same column are significantly different at p<0.05.
^a-dMeans of the different superscripts within same row are significantly different at p<0.05.