Table 5 Inhibition zone diameter (mm) produced by alginate extracted from S. algini MNE ON864447 against Gram-negative and Gram-positive bacteria
Bacterial strains | Cyanobacterial alginate concentrations | ||
|---|---|---|---|
10Â mg/ml | 5Â mg/ml | 2.5Â mg/ml | |
Klebsiella pneumoniae | 28.5 ± 0.15 | 14.9 ± .01 | 11 ± 0.1 |
Vibro cholera (NCTC 8021) | 22.5 ± .05 | 16 ± 0.1 | 10.53 ± 0.03 |
Escherichia coli (ATCC 25922) | 28.5 ± 0.15 | 21.5 ± 0.15 | 11 ± 0.08 |
Bacillus subtilis (NCTC 10400) | 23 ± .05 | 17.5 ± 0.15 | 10.7 ± 0.15 |
Salmonella typhi (ATCC 19430) | 31.5 ± 0.15 | 18.5 ± 0.15 | 11.5 ± 0.1 |
Streptococcus mutants (NCTC10449) | 34 ± 0.1 | 26.5 ± .05 | 21.5 ± 0.15 |
Staphylococcus aureus (ATCC25923) | 24.3 ± 0.2 | 21.2 ± 1 | 12.1 ± 0.13 |
MRSA | 28.5 ± 0.15 | 21.5 ± 0.15 | 11.1 ± .02 |