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Table 5 Correlation between antioxidant activity of different extracts of selected Sudanese plants and the total content of flavonoids and phenolics in the extracts

From: Correlation of antiangiogenic, antioxidant and cytotoxic activities of some Sudanese medicinal plants with phenolic and flavonoid contents

Plants Part used Solvent used DPPH (IC50in μg/ml) Total flavonoids (mg/g) Total phenolics (mg/g)
Indgosfera spinosa Stem n-Hexane >1000 28.1 ± 0.00 ND
Ethanol 192.63 40.2 ± 0.04 115.4 ± 0.01
Methanol 140 36.6 ± 0.01 161.4 ± 0.03
Water >1000 13.3 ± 0.01 78.5 ± 0.001
Nicotiana gluaca Leaves n-Hexane >1000 88.1 ± 0.01 ND
Ethanol 54.76 77.1 ± 0.00 111.6 ± 0.01
Methanol 13.437 64.5 ± 0.002 139.9 ± 0.01
Water 30.05 57.6 ± 0.001 105.6 ± 0.01
Stem n-Hexane >1000 58.6 ± 0.02 3.46 ± 0.01
Ethanol 160.94 13.1 ± 0.01 ND
Methanol 119.45 17.9 ± 0.01 41.02 ± 0.003
Water 591.98 ND 12.5 ± 0.02
Tephrosia apollinea Aerial part n-Hexane >1000 66.9 ± 0.01 ND
Ethanol 120.22 78.1 ± 0.00 ND
Methanol 48.803 10.7 ± 0.01 25.7 ± 0.00
Water 2835.07 23.5 ± 0.02 23.5 ± 0.01
Tamarix nilotica Leaves n-Hexane >1000 67.8 ± 0.00 ND
Ethanol 880.70 13.1 ± 0.04 15.3 ± 0.04
Methanol 12.62 24.9 ± 0.02 333.9 ± 0.01
Water 67.53 22.6 ± 0.001 171.6 ± 0.02
Combretum hartmannianum Leaves n-Hexane >1000 42. ±0.002 ND
Ethanol 146.35 45.2 ± 0.001 169.2 ± 0.02
Methanol 14.067 57.7 ± 0.001 392.8 ± 0.01
Water 967.55 27.6 ± 0.02 268.2 ± 0.03
Bark n-Hexane >1000 42.1 ± 0.01 1.9 ± 0.01
Ethanol 9.47 28.1 ± 0.02 404.1 ± 0.06
Methanol 28.91 24.2 ± 0.02 96.5 ± 0.05
Water 22.47 29.7 ± 0.01 523.3 ± 0.01
Capparis decidua Stem n-Hexane 212.56 67.5 ± 0.02 85.2 ± 0.01
Ethanol 900.58 8.5 ± 0.02 19.9 ± 0.01
Methanol 76.38 4.6 ± 0.02 40.3 ± 0.2
   Water >1000 ND 335.7 ± 0.01
  1. ND = Not Detected. The results are presented as mean ± SEM. Each experiment was repeated three times; (n =3).