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International Journal of Phytomedicine and Phytotherapy

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Table 2 In vitro antioxidant activities of the ethanolic extract of T. indica leaf

From: Antioxidant-rich Tamarindus indica L. leaf extract reduced high-fat diet-induced obesity in rat through modulation of gene expression

  Polyphenol content
(mg GAE/g)
Flavonoid content
(mg QE/g)
DPPH radical scavenging activity, IC50
(μg/ml)
ABTS radical scavenging activity
(mmole Trolox/g)
Ferric reducing activity (μmole/g)
T. indica leaf extract 287.20 ± 9.21 107.52 ± 11.12 26.54 ± 3.18a 1.61 ± 0.12a 593.06 ± 8.57a
BHT NA NA 29.17 ± 2.34a 1.79 ± 0.08a 575.04 ± 9.35 a
Ascorbic acid NA NA 11.02 ± 0.82b 5.07 ± 0.05b 1293.32 ± 18.21b
Quercetin NA NA 9.81 ± 0.61b 4.27 ± 0.18c 1375.87 ± 22.51c
  1. Polyhenol and flavonoid content and in vitro radical scavenging and antioxidant activities of the ethanolic extract of T. indica L. leaf. Data was analyzed by one way ANOVA followed by Newman-Keuls’s post-hoc test and expressed as mean ± SEM (n = 3). Values with different superscript letters within the same column are significantly different at p < 0.05. NA, not applicable