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Table 5 Concentration-dependent ABTS.+free radical scavenging activity of Rhus pentaphyllum aqueous extracts and standard antioxidant Trolox

From: Correlation between antibutyrylcholinesterasic and antioxidant activities of three aqueous extracts from Tunisian Rhus pentaphyllum

Extracts Concentration (mg/ml) Inhibition (%) TEAC (mM) IC50 (mg/ml)
Seeds aqueous extract 0.5 76.4 ± 3.50* 2.19 0.25
  2.5 86.12 ± 4.25**   
  4.5 98.77 ± 6.50**   
  7.5 100 ± 1.00***   
  9.5 100 ± 1.50***   
Leaves aqueous extract 0.5 61.7 ± 3.50* 1.54 0.37
  2.5 87.8 ± 4.40**   
  4.5 89 ± 1.00**   
  7.5 98 ± 0.50**   
  9.5 100 ± 2.50***   
Roots aqueous extract 0.5 44.1 ± 0.35 1.32 2.31
  2.5 54 ± 1.10*   
  4.5 67.13 ± 3.10*   
  7.5 78.61 ± 5.10*   
  9.5 86.50 ± 2.35**   
(a) Trolox 0.5 22.07 ± 0.25 - 0.76
  0.625 32.21 ± 0.50   
  0.833 53.84 ± 1.50   
  1.25 65 ± 2.50   
  2.5 96.85 ± 2.80**   
  1. TEAC: Trolox equivalent antioxidant capacity
  2. Significant difference obtained with: *P < 0.05; **P < 0.01; ***P < 0.001
  3. The reported comparisons concern: Seeds aqueous extract versus roots aqueous extract, leaves aqueous extract versus roots aqueous extract and control(a) versus roots aqueous extract. Every concentration is compared with its equivalent in the other extract.