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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

From: The antibacterial activity, antioxidant activity and selectivity index of leaf extracts of thirteen South African tree species used in ethnoveterinary medicine to treat helminth infections

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%