| Test pathogen |
Concentration of compound (μg/disc) |
Compound (cemb) |
Standard drug |
| Streptomycin sulphate |
Chloramphenicol |
| Salmonella typhi |
10 |
- |
2.0 |
2.4 |
| 20 |
- |
2.2 |
2.5 |
| 40 |
- |
2.4 |
2.6 |
| 60 |
0.9 |
2.8 |
2.9 |
| 80 |
1.2 |
3.1 |
3.2 |
| 100 |
1.3 |
3.5 |
3.7 |
| Shigella flexneri |
10 |
0.6 |
2.0 |
2.6 |
| 20 |
0.8 |
2.4 |
2.9 |
| 40 |
0.9 |
2.6 |
3.0 |
| 60 |
1.1 |
3.0 |
3.3 |
| 80 |
1.3 |
3.3 |
3.5 |
| 100 |
1.5 |
3.6 |
3.7 |
| Staphylococcus aureus |
10 |
1.8 |
2.0 |
2.2 |
| 20 |
2.0 |
2.1 |
2.4 |
| 40 |
2.4 |
2.3 |
2.5 |
| 60 |
2.7 |
2.6 |
2.8 |
| 80 |
2.8 |
2.9 |
3.2 |
| 100 |
3.5 |
3.6 |
3.8 |
| Enterococcus faecalis |
10 |
- |
2.2 |
1.6 |
| 20 |
- |
2.3 |
1.9 |
| 40 |
- |
2.5 |
2.0 |
| 60 |
0.7 |
2.6 |
2.1 |
| 80 |
0.9 |
3.0 |
2.3 |
| 100 |
1.2 |
3.2 |
2.5 |
|
| No zone was observed *inhibition zone is the average of the diameter of zone from
two sides in cm. (A. Hydrophila, E. coli does not show activity). |
| Table 6: Antibacterial assay of the cemb and standard drugs against human
bacterial pathogens. |
