(Zone of Inhibition in Mean ± STD µg/ml)

Isolates

Extract-Fractions

Standard

Bacterial strains

Methanol

n-Hexane

Chloroform

Ethyl acetate

n-butanol

Water

Az

Tetra

B. atrophoeus

19.1 ± 0.5

17.1 ± 1.0

12.0 ± 1.0

10.3 ± 1.0

00.0 ± 0.0

9.3 ± 0.5

23 ± 0.0

22 ± 00

B. subtlilis

15.0 ± 1.0

15.0 ± 1.0

11.0 ± 1.0

13.7 ± 1.5

00.0 ± 0.0

0.0 ± 0.0

20 ± 1.0

21 ± 05

K. pneumonia

17.3 ± 0.5

14.3 ± 0.5

120 ± 0.58

13.0 ± 1.0

00.0 ± 0.0

0.0 ± 0.0

25 ± 1.0

24 ± 00

P. aeruginosa

15.3 ± 1.0

16.7 ± 1.0

13.0 ± 1.00

10.0 ± 1.0

09.7 ± 1.0

0.0 ± 0.0

20.0.0

20 ± 01