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Table 2 IC 50 values of different antioxidant assays of extract and various fractions of S. cordata

From: Investigation on flavonoid composition and anti free radical potential of Sida cordata

Activity

IC50(μg/ml)

 

SCME

SCHE

SCEE

SCBE

SCAE

Standarda

DPPH scavenging activity

235±1.4c

795±5.3a

135±1.2e

147±1.4d

275±3.2b

25±1.1f

Hydrogen peroxide scavenging activity

272±1.8c

469±2.7b

154±2.3e

223±2.1d

622±3.7a

99±2.2f

Hydroxyl radical scavenging activity

298±2.1c

578±4.2a

189±1.5d

206±1.3e

455±4.1b

32±0.9f

ABTS scavenging activity

259±0.9a

260±2.1a

143±0.8d

224±1.4c

236±2.2b

55±1.3e

Anti lipid per oxidation activity

212±3.1c

276±2.6b

119±1.0e

153±1.1d

314±2.8a

31±0.8f

β -carotene bleaching activity

221±1.7c

647±3.9a

153±1.1d

156±1.7d

249±1.6b

35±1.7e

Superoxide radical scavenging activity

139±2.0c

197±2.3b

114±1.3d

136±2.1c

242±3.1a

41±2.3e

  1. Values are expressed as mean±SD (N=3), a=Ascorbic acid. Means with superscripts with different letters in the rows are significantly (P<0.05) different from each other. (SCHE); n-hexane fraction, (SCEE); ethyl acetate fraction, (SCBE); n-butanol fraction, (SCAE), aqueous fraction.