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Table 4 IC50 values of different antioxidant activities of BPM and its fractions

From: Estimation of phytochemical constituents and in vitro antioxidant potencies of Brachychiton populneus (Schott & Endl.) R.Br.

Sample DPPH scavenging Hydroxyl radical scavenging Nitric oxide scavenging activity β-carotene bleaching inhibition activity Iron chelating activity
  IC50 (μg/ml)
BPM 143.7 ± 2.7c 345.6 ± 2.1c 130 ± 2.9c 148.8 ± 2.3c 761.5 ± 1.9c
BPH 461.7 ± 1.5a 618.3 ± 4.0b 180.4 ± 3.3a 347.3 ± 3.6a > 1000
BPC 259.6 ± 3.3b 764.8 ± 2.5a 165.5 ± 2.7b 244.8 ± 2.8b > 1000
BPE 48.32 ± 2.1e 180.5 ± 3.6e 82.7 ± 3.08d 77.9 ± 1.5e 336.7 ± 1.8e
BPB 63.38 ± 3.4d 255.0 ± 2.2d 121.2 ± 2.5c 115.3 ± 2.1d 605.4 ± 2.3d
BPA 46.51 ± 2.1e 144.3 ± 3.2f 46.49 ± 2.7e 40.04 ± 3.1g 249.8 ± 2.8f
Rutin 110.7 ± 1.7g
Ascorbic acid 29.57 ± 1.1f 16.4 ± 1.6f
Catechin 58.4 ± 2.8f
EDTA 177.2 ± 2.8g
  1. Values are presented as mean ± SD (n = 3). Means with different superscript (a–g) letters in the rows are significantly (p < 0.01) different from each other
  2. BPM: B. populneus methanol extract; BPH: B. populneus n-hexane fraction; BPC: B. populneus chloroform fraction; BPE: B. populneus ethyl acetate fraction; BPB: B. populneus butanol fraction; BPA: B. populneus aqueous fraction