Table 2.
Antimicrobial activity of the extracts
| Microorganisms | Zone of inhibition (mm) | MIC (mg/ml) | ||||
|---|---|---|---|---|---|---|
| CH2Cl2 extract | MeOH extract | Tet | CyX | CH2Cl2 extract | MeOH extract | |
| Bs | 11.33 ± 0.58 | 10.33 ± 0.58 | 11.0 ± 0.0 | ND | 0.156 | 0.625 |
| Ml | 17.67 ± 0.58 | 17.33 ± 0.58 | 35.0 ± 0.0 | ND | 0.156 | 1.25 |
| Sa | 9.0 ± 0.0 | 10.33 ± 0.58 | 16.0 ± 0.0 | ND | 1.25 | 1.25 |
| Sf | 14.0 ± 0.0 | 10.33 ± 0.58 | 15.0 ± 0.0 | ND | 0.156 | 1.25 |
| Pm | 11.33 ± 0.58 | 12.0 ± 1.0 | 16.0 ± 1.0 | ND | 0.3125 | 1.25 |
| Se | NA | NA | NA | ND | >5 | >5 |
| Ea | 8.67 ± 0.58 | 9.67 ± 0.58 | 10.0 ± 0.0 | ND | 0.625 | 1.25 |
| Ec | 9.0 ± 0.0 | 9.0 ± 0.0 | 11.67 ± 0.58 | ND | 0.3125 | 0.3125 |
| Pa | 7.67 ± 0.58 | 8.0 ± 0.0 | NA | ND | >5 | >5 |
| Ca | 8.0 ± 0.0 | NA | ND | NA | >5 | >5 |
| Af | 9.0 ± 0.0 | NA | ND | 14.0 ± 3.61 | >5 | >5 |
NA, No antimicrobial activity. ND, Not determined, Tet, Tetracycline, CyX, Cycloheximide, Inhibition zones including the disc diameter (6 mm); <8.0 mm, weak activity; 8.0-9.0 mm, slight low activity; 9.1-10.0 mm, middle activity; 10.1-11.0 mm, slight high activity; 11.1-12.0 mm, moderate high activity; over 12.0 mm, very high activity.