Table 7.
Antibacterial effects of dichloromethane and chloroform fractions of Psychotria silhetensis.
|
Test Organism |
P. silhetensis (zone of inhibition, mm) |
Standard drug (ciprofloxacin) | |
|---|---|---|---|
| Dichloromethane fraction | Chloroform fraction | ||
| Bacillus cereus | 8 | 8 | 40 |
| Bacillus megaterium | 8 | 10 | 42 |
| Bacillus subtilis | 0 | 8 | 38 |
| Staphylococcus aureus | 0 | 8 | 41 |
| Sarcina lutea | 8 | 12 | 37 |
| Escherichia coli | 0 | 0 | 38 |
| Pseudomonas aeruginosa | 8 | 8 | 45 |
| Salmonella paratyphi | 0 | 0 | 43 |
| Salmonella typhi | 0 | 8 | 39 |
| Shigella boydii | 10 | 0 | 42 |
| Shigella dysenteriae | 8 | 12 | 40 |
| Vibrio mimicus | 8 | 10 | 40 |
| Vibrio parahemolyticus | 0 | 0 | 47 |