Table 1.
Antibacterial activity (MIC and MBC in μg/mL) of extracts and isolated compounds against pathogenic bacteria.
| Extracts/compounds | Inhibition parameters | Staphylococcus aureus ATCC 25923 | Enterococcus faecalis ATCC 29212 | Pseudomonas aeruginosa ATCC 76110 | Escherichia coli ATCC 25922 | Klebsiella pneumoniae 22 |
|---|---|---|---|---|---|---|
| MeOH extract | MIC | 32 | 64 | 64 | 128 | 32 |
| MBC | 64 | 64 | 128 | 256 | 64 | |
| MBC/MIC | 2 | 1 | 2 | 2 | 2 | |
|
| ||||||
| EtOAc extract | MIC | 64 | 32 | 64 | 64 | 64 |
| MBC | 64 | 64 | 64 | 64 | 64 | |
| MBC/MIC | 1 | 2 | 1 | 1 | 1 | |
|
| ||||||
| 1 | MIC | >256 | >256 | >256 | >256 | >256 |
| MBC | nd | nd | nd | nd | nd | |
| MBC/MIC | nd | nd | nd | nd | nd | |
|
| ||||||
| 2 | MIC | 8 | 8 | 16 | 16 | 32 |
| MBC | 16 | 8 | 32 | 16 | 32 | |
| MBC/MIC | 2 | 1 | 2 | 1 | 1 | |
|
| ||||||
| 3 | MIC | 32 | 64 | 64 | 64 | 32 |
| MBC | 64 | 64 | 128 | 128 | 64 | |
| MBC/MIC | 2 | 1 | 2 | 2 | 2 | |
|
| ||||||
| 4 | MIC | >256 | 128 | 128 | 256 | >256 |
| MBC | nd | >256 | >256 | >256 | nd | |
| MBC/MIC | nd | nd | nd | nd | nd | |
|
| ||||||
| 6 | MIC | >256 | 128 | 128 | 128 | >256 |
| MBC | nd | >256 | >256 | >256 | nd | |
| MBC/MIC | nd | nd | nd | nd | nd | |
|
| ||||||
| 3 + 7 | MIC | 32 | 64 | 32 | 32 | 32 |
| MBC | 64 | 64 | 64 | 64 | 64 | |
| MBC/MIC | 2 | 1 | 2 | 2 | 2 | |
|
| ||||||
| Ciprofloxacin | MIC | 4 | 2 | 4 | 8 | 2 |
| MBC | 8 | 4 | 8 | 8 | 4 | |
| MBC/MIC | 2 | 2 | 2 | 1 | 2 | |
MIC, minimum inhibitory concentrations; MBC, minimum bactericidal concentrations; nd, not determined.