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Table 3 Free radical scavenging activities of the Maytenus species expressed as EC 50 (μg/ml)

From: Evaluation of pharmacological activities, cytotoxicity and phenolic composition of four Maytenus species used in southern African traditional medicine to treat intestinal infections and diarrhoeal diseases

  Maytenus peduncularis
Assay Crude Hex DCM ETOAc But Water Trolox
DPPH 1.88 ± 0.02 113.13 ± 12.63 28.19 ± 4.14 2.33 ± 0.21 59.91 ± 8.01 153.40 ± 20.62 1.18 ± 0.06
ABTS 8.65 ± 0.13 114.64 ± 25.93 33.54 ± 1.29 6.35 ± 0.18 52.79 ± 14.44 74.89 ± 2.84  
OH 23.92 ± 2.28 110.54 ± 17.91 122.07 ± 20.50 70.86 ± 18.09 49.55 ± 5.7   
  Maytenus procumbens
DPPH 3.56 ± 0.16 110.70 ± 10.69 30.67 ± 4.54 1.22 ± 0.15 20.64 ± 0.90 189.00 ± 7.56 1.20 ± 0.06
ABTS 4.03 ± 0.19 277.80 ± 16.14 22.26 ± 1.36 1.71 ± 0.13 8.99 ± 2.86 130.70 ± 15.06  
OH 107.69 ± 12.32 179.70 ± 41.17 223.96 ± 42.04 76.70 ± 11.58 46.79 ± 12.42   
  Maytenus senegalensis
DPPH 6.71 ± 0.26 251.43 ± 29.54 121.27 ± 10.99 9.50 ± 0.11 48.10 ± 0.26 162.17 ± 22.77 1.28 ± 0.07
ABTS 5.34 ± 0.39 312.75 ± 43.83 139.90 ± 13.65 3.59 ± 0.06 7.78 ± 3.13 62.86 ± 3.97  
OH 146.30 ± 21.60 187.40 ± 55.56 356.80 ± 37.39 42.06 ± 12.90 30.81 ± 1.78   
  Maytenus undata
DPPH 3.48 ± 0.07 160.50 ± 31.40 42.91 ± 6.16 4.55 ± 0.31 15.86 ± 0.31 607.30 ± 7.57 1.31 ± 0.07
ABTS 7.89 ± 0.31 268.30 ± 7.78 55.30 ± 5.09 6.66 ± 1.54 5.74 ± 1.37 220.27 ± 30.15  
OH 80.68 ± 2.9 284.36 ± 27.04 311.90 ± 150.33 155.53 ± 35.85 51.19 ± 5.30   
  1. CrE = crude extract, Hex = hexane fraction, DCM = dichloromethane, ETOAc = ethyl acetate and But = n- Butanol, DPPH. = 2, 2-Diphenyl-1-picrylhydrazyl radical, ABTS = 2,2’-azino-bis 3-ethylbenzothiazoline-6-sulfonic acid, OH = hydroxyl radical.