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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.