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Table 2 Antimicrobial activity of T. brownii stem wood extracts

From: Antimicrobial activity and brine shrimp toxicity of extracts of Terminalia brownii roots and stem

Extracts/drugs

Organisms tested

  

S. aureus

P. mirabilis

S. typhi

E. coli

P. aeruginosa

B. anthracis

B. cereus

K. pneumoniae

C. albicans

C. neoformans

PE

IZ

-

-

-

-

-

-

-

-

-

-

 

AI

-

-

-

-

-

-

-

-

-

-

DM

IZ

-

-

3.7 ± 1.5

7.3 ± 0.6

4.3 ± 0.6

3.3 ± 0.6

-

-

3.0 ± 1.0

-

 

AI

-

-

0.34

0.46

0.29

0.21

-

-

0.19

-

DM:M (1:1)

IZ

12.0 ± 0.0

-

-

8.3 ± 0.6

-

14.7 ± 0.6

8.0 ± 0.0

-

13.3 ± 0.6

8.3 ± 0.6

 

AI

0.80

-

-

0.54

-

0.92

0.63

-

0.83

0.73

M

IZ

11.3 ± 0.6

-

-

-

-

15.5 ± 0.7

11.5 ± 0.7

-

14.3 ± 0.6

10.3 ± 0.6

 

AI

0.79

-

-

-

-

0.97

0.79

-

0.89

0.88

Aqua

IZ

12.0 ± 1.0

-

-

-

9.3 ± 1.5

11.7 ± 1.5

7.0 ± 1.0

6.7 ± 2.1

12.3 ± 1.5

9.7 ± 1.1

 

AI

0.84

-

-

-

0.63

0.73

0.49

0.44

0.77

0.83

Gent

IZ

14.3 ± 1.5

13.0 ± 1.0

11.3 ± 0.6

15.7 ± 0.6

14.7 ± 0.6

16.0 ± 1.0

14.3 ± 0.6

15.3 ± 1.1

-

-

 

AI

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

-

-

Clotr

IZ

-

-

-

-

-

-

-

-

16.0 ± 1.0

11.7 ± 0.6

 

AI

-

-

-

-

-

-

-

-

1.00

1.00

  1. The results are presented as inhibition zone diameters in mm. Each value represents mean ± SD (n = 3). Key: PE = petroleum ether extract; DM = dicloromethane extract; 1:1 D:M = 1:1 dicloromethane:methanol extract; M = methanol extract; Aqua = aqueous extract; Gent = gentamicin; Clotr = Clotrimazole.