Table 3 Minimal inhibitory concentrations (MIC) (lowest concentration that inhibits the growth of the pathogen) in mg/ml of the leaf extracts of 13 plant species evaluated for antibacterial activity using four bacteria organisms
Plant species | S. aureus | E. coli | E. faecalis | P. aeruginosa |
|---|---|---|---|---|
Brachylaena discolor | 1.25 | 0.63 | 0.16 | 0.31 |
Zanthoxylum capense | 1.25 | 2.50 | 0.31 | 0.31 |
Clerodendrum glabrum | 1.25 | 0.31 | 1.25 | 0.63 |
Heteromorpha trifoliata | 1.25 | 0.63 | 1.25 | 0.63 |
Apodytes dimidiata | 0.31 | 2.50 | 1.25 | 0.31 |
Strychnos mitis | 0.31 | 0.04 | 0.63 | 0.16 |
Maesa lanceolata | 0.08 | 0.04 | 0.04 | 0.02 |
Indigofera frutescens | 0.16 | 0.16 | 0.08 | 0.31 |
Leucosidea sericea | 0.08 | 0.08 | 0.02 | 0.02 |
Melia azedarach | 0.63 | 0.31 | 0.16 | 0.63 |
Clausena anisata | 0.16 | 0.31 | 0.31 | 0.31 |
Cyathea dregei | 0.31 | 0.31 | 1.25 | 0.31 |
Milletia grandis | 0.31 | 0.31 | 0.31 | 0.31 |
Gentamicin | <0.02 | <0.02 | <0.02 | <0.02 |
Acetone | >25% | >25% | >25% | >25% |