Seaweed

Solvent

Zone of inhibition (mm)

Gram positive bacteria

Gram negative bacteria

S. aureus

E. coli

Klebsiella sp.

Pseudomonas sp.

Salmonella sp.

H. musciformis

Ethanol

12 ± 0.28

14 ± 0.57

16 ± 0.25

13 ± 0.56

14 ± 0.45

Methanol

13 ± 0.89

12 ± 0.76

15 ± 0.23

12 ± 0.43

10 ± 0.27

Acetone

11 ± 0.48

12 ± 0.37

13 ± 0.65

13 ± 0.39

10 ± 0.43

Distilled water

12 ± 0.38

13 ± 0.46

14 ± 0.28

12 ± 0.67

11 ± 0.19

E. intestinalis

Ethanol

11 ± 0.77

12 ± 0.45

11 ± 0.66

10 ± 0.89

11 ± 0.52

Methanol

10 ± 0.35

12 ± 0.83

10 ± 0.64

12 ± 0.86

08 ± 0.56

Acetone

10 ± 0.47

11 ± 0.67

12 ± 0.84

12 ± 0.11

10 ± 0.66

Distilled water

09 ± 0.43

10 ± 0.56

10 ± 0.34

11 ± 0.24

12 ± 0.50

Gentamicin

(Control)

18 ± 0.25

19 ± 0.50

15 ± 0.41

17 ± 0.34

18 ± 0.40