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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