Table 1.
The MIC value of conventional antibiotic and synergistic effect of TCA combined with an antibiotic.
| Antibiotics | ATCC 33591 | DPS-1 | DPS-3 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| MIC (μg/mL) | Fold | FICI | MIC (μg/mL) | Fold | FICI | MIC (μg/mL) | Fold | FICI | |
| Ampicillin | 62.5 | 2 | 1 | 31.3 | 4 | 0.75 | 62.5 | 4 | 0.75 |
| Oxacillin | 62.5 | 4 | 0.75 | 500 | 2 | 1 | 500 | 8 | 0.25 |
| Gentamicin | 3.9 | 4 | 0.75 | 125 | 4 | 0.37 | 250 | 4 | 0.5 |
| Vancomycin | 250 | 8 | 0.25 | 250 | 2 | 1 | 500 | 2 | 1 |
| Amoxicillin | 62.5 | 8 | 0.63 | 125 | 4 | 0.5 | 125 | 8 | 0.25 |
| Ceftazidine | 125 | 2 | 1 | 125 | 2 | 1 | 250 | 4 | 0.75 |
| Amikacin | 31.2 | 4 | 0.38 | 31.2 | 8 | 0.25 | 62.5 | 16 | 0.19 |
| Cefoxitin | 31.2 | 4 | 0.75 | 62.5 | 8 | 0.62 | 250 | 4 | 0.5 |
TCA, trans-cinnamaldehyde; MIC, minimal inhibitory concentration; Fold, Fold reduction of the MIC of antibiotics. FICI, The fractional inhibitory concentrations index.