Background
Methods
Collection of plant material, drying and storage
Extraction
Bacterial isolation
Test organisms
Microdilution assay
Cytotoxic activity
Results and Discussion
Activity of the nine acetone leaf extracts against the six egg Enterobacteriaceae isolates
Stenotrophomonas maltophilia
Stenotrophomonas maltophilia
|
Klebsiella pneumoniae
|
Salmonella ser. Typhimurium (AJ 33) | |||||||
---|---|---|---|---|---|---|---|---|---|
Plants | MIC (mg/ml) | TAA (ml/g) | SI | MIC (mg/ml) | TAA (ml/g) | SI | MIC (mg/ml) | TAA (ml/g) | SI |
H. roeperianum
| 0.16 | 749.8 | 0.41 | 0.16 | 749.8 | 0.41 | 0.31 | 387.0 | 0.21 |
C. triflora
|
0.08
| 252.1 | 0.72 |
0.08
| 252.1 | 0.72 |
0.08
| 252.1 | 0.72 |
H. arborescens
|
0.08
| 325.4 | 1.01 | 0.16 | 162.7 | 0.51 | 0.16 | 162.7 | 0.51 |
P. viridiflorum
|
0.08
| 339.6 | 0.68 | 0.16 | 169.8 | 0.34 | 0.16 | 169.8 | 0.34 |
B. speciosus
| 0.31 | 74.3 | 0.17 | 0.16 | 144.0 | 0.33 | 0.63 | 36.6 | 0.08 |
C. aurea
| 0.16 | 179.0 | 0.09 |
0.08
| 357.9 | 0.17 | 0.16 | 179.0 | 0.09 |
M. lanceolata
|
0.08
| 1390.4 | 0.03 | 0.63 | 176.6 | 0*
| 0.16 | 695.2 | 0.01 |
E. croceum
|
0.08
| 1124.6 | 0.07 | 0.31 | 290.2 | 0.02 | 0.31 | 290.2 | 0.02 |
M. mesozygia
| 0.16 | 115.4 | 0.25 |
0.08
| 230.8 | 0.51 | 0.31 | 59.6 | 0.13 |
Mean | 0.13 | NA | NA | 0.2 | NA | NA | 0.25 | NA | NA |
SD | 0.07 | NA | NA | 0.17 | NA | NA | 0.16 | NA | NA |
Gentamicin | 0.0008 | NA | NA | 0.0008 | NA | NA | 0.006 | NA | NA |
Klebsiella pneumoniae
Salmonella serotype Typhimurium
Proteus mirabilis
Proteus mirabilis
|
Enterobacter cloacae
|
Escherichia coli
| |||||||
---|---|---|---|---|---|---|---|---|---|
Plants | MIC (mg/ml) | TAA (ml/g) | SI | MIC (mg/ml) | TAA (ml/g) | SI | MIC (mg/ml) | TAA (ml/g) | SI |
H. roeperianum
| 0.63 | 190.4 | 0.11 | 0.31 | 387.0 | 0.21 |
0.08
| 1499.6 | 0.83 |
C. triflora
| 0.63 | 32.0 | 0.09 |
0.08
| 252.1 | 0.72 |
0.08
| 252.1 | 0.72 |
H. arborescens
| 0.31 | 84.0 | 0.26 | 0.16 | 162.7 | 0.51 |
0.08
| 325.4 | 1.01 |
P. viridiflorum
| 0.31 | 87.6 | 0.18 | 0.16 | 169.8 | 0.34 |
0.08
| 339.6 | 0.68 |
B. speciosus
| 0.63 | 36.6 | 0.08 |
0.08
| 287.9 | 0.66 |
0.08
| 287.9 | 0.66 |
C. aurea
| 0.31 | 92.7 | 0.04 |
0.08
| 357.9 | 0.17 |
0.04
| 715.8 | 0.34 |
M. lanceolata
|
0.02
| 5561.7 | 0.12 |
0.08
| 1390.4 | 0.03 | 0.16 | 695.2 | 0.01 |
E. croceum
|
0.08
| 1124.6 | 0.07 |
0.08
| 1124.6 | 0.07 |
0.08
| 1124.6 | 0.07 |
M. mesozygia
| 1.25 | 14.8 | 0.03 | 0.16 | 115.4 | 0.25 |
0.08
| 230.8 | 0.51 |
Mean | 0.46 | NA | NA | 0.13 | NA | NA | 0.08 | NA | NA |
SD | 0.35 | NA | NA | 0.07 | NA | NA | 0.03 | NA | NA |
Gentamicin | 0.0008 | NA | NA | 0.0002 | NA | NA | 0.006 | NA | NA |