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Antimicrobial activity of ursolic acid (UA), oleanolic acid (OA) and ampicillin (AMP) on MRSA strains and FIC index (FICI; Fractional Inhibitory Concentration Indices) of their combinations. N = 3.
| S. aureus | MICs (mg/L) | FICI | |||
|---|---|---|---|---|---|
| UA | OA | AMP | AMP-UA | AMP-OA | |
| ATCC33591 | 16 | 32 | 64 | 0.38–1.00 | 0.31–1.00 |
| COL | 8 | 16 | 32 | 0.38–1.00 | 0.25–1.00 |
