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Table 2 Antibacterial activity of the extract and fractions of the methanol stem bark extract of T. orientalis on different bacterial isolates

From: In vitro antiplasmodial activity and prophylactic potentials of extract and fractions of Trema orientalis (Linn.) stem bark

Test Organisms Extract/Fraction Concentrations (mg/mL)
50.000 25.000 12.500 6.250 3.125 1.563
Enterobacter cloaca ATCC 13047 Ethylacetate fraction 35.54 ± 8.34 18.62 ± 3.54 0.00 0.00 0.00 0.00
Dichloromethane fraction 58.24 ± 12.40 38.50 ± 11.74 3.14 ± 1.01 0.00 0.00 0.00
Methanol Extract 102.14 ± 23.45 54.29 ± 10.81 7.07 ± 1.45 3.14 ± 1.32 0.00 0.00
Methanol Fraction 48.69 ± 6.01 50.29 ± 9.33 12.57 ± 4.30 0.00 0.00 0.00
Gentamicin (10 μg/mL) 211.13 ± 9.25
Escherichia coli ATCC 8739 Ethylacetate fraction 50.29 ± 12.37 56.30 ± 11.80 28.29 ± 3.72 7.07 ± 3.23 0.00 0.00
Dichloromethane fraction 66.24 ± 8.26 48.19 ± 9.83 32.73 ± 2.92 22.29 ± 1.56 0.00 0.00
Methanol Extract 52.21 ± 9.36 35.50 ± 10.10 28.40 ± 3.30 12.57 ± 3.84 3.14 ± 0.44 0.00
Methanol Fraction 71.53 ± 32.23 44.92 ± 8.54 19.14 ± 1.95 19.34 ± 0.85 3.14 ± 1.93 0.00
Gentamicin (10 μ/ml) 144.52 ± 3.87
Serratiamercescens ATCC 9986 Ethylacetate fraction 93.07 ± 6.12 73.12 ± 5.27 78.57 ± 16.34 7.07 ± 2.56 0.00 0.00
Dichloromethane fraction 142.09 ± 15.28 95.07 ± 7.23 78.57 ± 10.67 52.21 ± 3.83 12.57 ± 3.45 3.14 ± 0.45
Methanol Extract 63.6410.46± 63.64 ± 9.34 0.00 0.00 0.00 0.00
Methanol Fraction 79.57 ± 8.10 96.07 ± 15.28 63.64 ± 3.67 61.45 ± 6.44 0.00 0.00
Gentamicin (10 μ/ml) 111.13 ± 3.16
Pseudomonas aeruginosa ATCC 19582 Ethylacetate fraction 64.31 ± 4.19 58.64 ± 7.28 53.29 ± 5.23 19.64 ± 2.45 3.83 ± 0.45 0.00
Dichloromethane fraction 65.07 ± 24.34 28.29 ± 6.26 3.14 ± 0.34 0.00 0.00 0.00
Methanol Extract 73.57 ± 12.33 50.29 ± 9.28 38.50 ± 11.36 4.56 ± 1.04 0.00 0.00
Methanol Fraction 113.14 ± 23.12 63.64 ± 7.29 19.645.23 3.14 ± 0.77 0.00 0.00
Gentamicin (10 μg/mL) 356.50 ± 12.07
Enterococcus faecalis ATCC 29212 Ethylacetate fraction 122.79 ± 13.60 50.29 ± 13.92 19.64 3.36 ± 1.35 3.19 ± 0.31 0.00
Dichloromethane fraction 38.50 ± 7.27 32.50 ± 4.65 12.57 0.00 0.00 0.00
Methanol Extract 81.81 ± 5.73 28.29 ± 7.12 19.64 3.14 ± 0.25 0.00 0.00
Methanol Fraction 52.19 ± 7.45 38.50 ± 3.71 38.50 0.00 0.00 0.00
Gentamicin (10 μg/mL) 165.20 ± 14.02
Staphylococcus aureus ATCC 6538 Ethylacetate fraction 52.19 ± 9.15 28.29 ± 3.27 29.29 ± 3.18 19.84 ± 3.23 3.18 ± 0.31 3.11 ± 0.23
Dichloromethane fraction 53.82 ± 9.38 24.23 ± 3.55 0.00 0.00 0.00 0.00
Methanol Extract 50.29 ± 18.39 28.49 ± 7.23 19.64 ± 3.91 0.00 0.00 0.00
Methanol Fraction 53.23 ± 7.14 0.00 0.00 0.00 0.00 0.00
Gentamicin (10 μg/mL) 50.29 ± 4.45