Skip to main content
. 2014 May 5;21(5):427–435. doi: 10.1016/j.sjbs.2014.04.003

Table 1.

Total phenolic content, DPPH and ABTS radical scavenging activities of crude extract and its sub-fractions of Ulmus pumila stem bark.

Sample Total phenolics (mg GAE/g extract) IC50 of DPPH (μg/mL) ABTS (TEAC)
UCE 138.95 ± 3.270c 35.87 ± 0.490d 0.1773 ± 0.002c
UEF 756.93 ± 10.190a 5.6 ± 0.140b 0.9703 ± 0.009a
UBF 537.53 ± 10.300b 13.76 ± 0.260c 0.5752 ± 0.006b
UWF 95.35 ± 3.780d 118.81 ± 1.600e 0.0958 ± 0.001d
AA – 1.72 ± 0.010a –

UCE, crude hot water extract; UEF, ethyl acetate fraction; UBF, n-butanol fraction; UWF, water fraction; AA, ascorbic acid.

Values are mean of three replicate determinations (n = 3) ± standard deviation. Mean values followed by different superscripts (a–e) in a column are significantly different (P < 0.05).