Table 2.
MIC, MBIC, and MBEC values for penicillin, tetracycline, and gentamicin against the twelve strains tested
| Penicillin | Tetracycline | Gentamicin | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Biofilm | Strain | Species | MIC | MBIC | MBEC | MIC | MBIC | MBEC | MIC | MBIC | MBEC |
| µg/mL | µg/mL | µg/mL | |||||||||
| WEAK | 15.6.2 | S. haemolyticus | < 1 | > 512 | > 512 | < 1 | > 512 | > 512 | < 1 | > 512 | > 512 |
| 25.4.2 | S. aureus | 64 | > 512 | > 512 | < 1 | 32 | 256 | < 1 | > 512 | > 512 | |
| 7.9.4 | B. cereus | 128 | > 512 | > 512 | < 1 | 4 | 256 | < 1 | 16 | > 512 | |
| 23.1.2 | B. pumilus | < 1 | 64 | 64 | < 1 | 1 | 512 | < 1 | 1 | 256 | |
| MODERATE | 27.13.4 | S. epidermidis | 16 | > 512 | > 512 | < 1 | 2 | 256 | < 1 | 1 | > 512 |
| 32.4.2 | S. lugdunensis | 32 | > 512 | > 512 | 1 | 2 | 64 | 16 | 1 | > 512 | |
| 8.4.2 | B. cereus | 128 | > 512 | > 512 | < 1 | 1 | 128 | < 1 | 2 | > 512 | |
| 16.7.2 | B. subtilis | 4 | > 512 | > 512 | 1 | > 512 | 512 | 1 | > 512 | 128 | |
| STRONG | 14.8.2 | S. capitis | 32 | > 512 | > 512 | < 1 | > 512 | 256 | 8 | > 512 | > 512 |
| 18.7.2 | S. saprophyticus | < 1 | > 512 | > 512 | < 1 | > 512 | 256 | < 1 | > 512 | > 512 | |
| 3.12.2 | B. subtilis | < 1 | 256 | > 512 | 4 | 32 | > 512 | < 1 | < 1 | 128 | |
| 36.10.2 | B. subtilis | < 1 | 64 | 64 | 4 | 8 | 32 | < 1 | < 1 | 64 | |
MIC minimum inhibitory concentration, MBIC minimum biofilm inhibitory concentration, MBEC minimum biofilm eradication concentration.