Table 5.
Antimicrobial activity of aqueous and ethanol plant extracts against the clinical isolates.
| Isolate | N | A. cordifolia | J. flava | M. arboreus | M. charantia | P. guajava | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | |||
| E. coli | 25 | Mean ZoI (mm) | 9.2 | 23.0 | 0.7 | 0.0 | 0.0 | 0.4 | 0.3 | 1.0 | 0.0 | 0.3 |
| STD | 7.1 | 3.1 | 2.6 | 0.0 | 0.0 | 2.2 | 1.6 | 2.9 | 0.0 | 1.6 | ||
| SEM | 1.4 | 0.6 | 0.5 | 0.0 | 0.0 | 0.4 | 0.3 | 0.6 | 0.0 | 0.3 | ||
| P. aeruginosa | 20 | Mean ZoI (mm) | 14.2 | 16.1 | 0.4 | 0.0 | 0.6 | 0.0 | 4.14 | 4.4 | 2.4 | 9.2 |
| STD | 5.3 | 4.8 | 1.6 | 0.0 | 1.9 | 0.0 | 6.0 | 5.9 | 4.5 | 6.9 | ||
| SEM | 1.2 | 1.1 | 0.4 | 0.0 | 0.4 | 0.0 | 1.3 | 1.3 | 1.0 | 1.5 | ||
| S. aureus | 16 | Mean ZoI (mm) | 21.4 | 23.4 | 6.4 | 1.6 | 1.3 | 0.6 | 9.9 | 11.1 | 16.1 | 17.6 |
| STD | 7.0 | 1.6 | 7.3 | 4.4 | 3.4 | 2.3 | 4.6 | 4.6 | 3.4 | 1.8 | ||
| SEM | 1.7 | 0.4 | 1.8 | 1.0 | 0.8 | 0.6 | 1.1 | 1.1 | 0.9 | 0.4 | ||
N represents total number, STD = standard deviation; SEM = standard error of mean; ZoI (mm) represents mean zones of inhibition measured in millimeters (mm); P. guajava: Psidium guajava, M. charantia: Momordica charantia, A. cordifolia: Alchornea cordifolia, M. arboreus: Myrianthus arboreus, J. flava: Justicia flava.