Table 1.
Antimicrobial and antibiofilm activity of H. siliquosa extract E3.
| Pathogenic Strain | MIC (mg/mL) | MBC (mg/mL) | MBEC (mg/mL) |
|---|---|---|---|
| S. aureus ATCC 29213 | 0.3125 | 0.3125 | NoA |
| S. aureus NCTC 12981 (ATCC 25923) | 0.1562 | 0.3125 | NT |
| S. aureus MRSA ATCC 33593 | 0.1562 | 0.1562 | 1.25 |
| S. aureus MRSA NCTC 10442 | 0.1562 | 0.3125 | 5 |
| S. aureus MRSA ATCC 43300 | 0.3125 | 0.3125 | NoA |
| S. epidermidis ATCC 35982 | 0.1562 | 0.3125 | NT |
| S. epidermidis NCTC 13360 (ATCC 12228) | 0.1562 | 0.3125 | NoA |
| S. epidermidis MRSE NCTC 11964 | 0.625 | 1.25 | NoA |
| S. haemolyticus NCTC 11042 | 0.1562 | 0.3125 | NoA |
| S. hominis NCTC 11320 | 0.3125 | 0.3125 | NoA |
| S. pyogenes NCTC 8306 (ATCC 12204) | 0.0391 | 0.0391 | NoA |
| S. agalactiae NCTC 8542 | 0.1562 | 0.1562 | NT |
| S. pneumoniae NCTC 7465 | 0.0391 | 0.0781 | NT |
| S. sanguinis NCTC 7863 | NoA | NoA | NoA |
| E. faecalis ATCC 779 | 0.3125 | 0.625 | NoA |
| P. mirabilis ATCC 7002 | 1.25 | NoA | NoA |
| P. aeruginosa PAO1 | 2.5 | 5 | NoA |
| P. aeruginosa NCTC 12903 (ATCC 27853) | 2.5 | 5 | NT |
| S. maltophilia NCTC 10257 (ATCC 13637) | 0.3125 | 0.625 | NoA |
| E. coli NCTC 12241 | 5 | 5 | NT |
| C. violaceum ATCC 12472 | 0.1562 | 0.3125 | NoA |
| C. albicans | NoA | NoA | NoA |
Minimum inhibitory concentration (MIC), Minimum bactericidal concentration (MBC) and Minimum biofilm eradication concentration (MBEC) of H. siliquosa extract E3. Values are expressed in mg/mL. NoA = no activity observed up to and including the highest concentration of extract tested (5 mg/mL). NT = not tested.