Table 4.
Antimicrobial activity of aqueous and ethanol plant extracts against the reference strains.
| Bacterial Control Strains | A. cordifolia | J. flava | M. arboreus | M. charantia | P. guajava | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| ZoI (mm) | ZoI (mm) | ZoI (mm) | ZoI (mm) | ZoI (mm) | ||||||
| Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | Aqueous | Ethanol | |
| P. aeruginosa ATCC 27853 | 19 | 17 | 0 | 0 | 0 | 0 | 15 | 10 | 8 | 20 |
| E. coli ATCC 25922 | 29 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| S. typhi ATCC 33458 | 23 | 20 | 0 | 0 | 0 | 0 | 10 | 12 | 0 | 7 |
| MRSA | 21 | 24 | 15 | 13 | 15 | 12 | 18 | 26 | 22 | 21 |
| S. aureus ATCC 25923 | 28 | 27 | 18 | 16 | 0 | 12 | 18 | 13 | 26 | 21 |
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; MRSA: Methicillin-resistant Staphylococcus aureus.