Table 1.
Antibacterial activity evaluated through the inhibition zone test of the three polyphenol (PF) extracts of Ogliariola, Ravece and Ruvea antica EVOOs, against different pathogens. The test was performed using 2.5 and 4.9 µg of extract. Data are expressed in mm. Results are shown as mean (± SD) (n = 3). For details, see Materials and Methods.
| ‘Ogliarola’ | ‘Ravece’ | ‘Ruvea Antica’ | Tetracycline | ||||
|---|---|---|---|---|---|---|---|
| 2.5 µg | 4.9 µg | 2.5 µg | 4.9 µg | 2.5 µg | 4.9 µg | 7 µg | |
| E. coli | 7.30 (±0.57) | 13.30 (±0.57) | 7.00 (±0.57) | 13.67 (±0.28) | 5.30 (±0.52) | 10.00 (±0.00) | 12.67 (±0.57) |
| L. innocua | 5.67 (±0.57) | 10.67 (±0.57) | 6.67 (0.57) | 13.33 (±0.57) | 4.30 (±0.57) | 9.30 (±0.57) | 10.33 (±0.50) |
| S. aureus | 7.30 (±0.57) | 11.67 (±0.57) | 0.00 (±0.00) | 0.00 (±0.00) | 6.67 (±0.57) | 12.67 (±0.57) | 6.67 (±0.57) |
| B. cereus 4313 | 10.67 (±1.14) | 18.33 (±0.57) | 9.67 (±0.57) | 17.33 (±1.15) | 6.33 (±0.57) | 11.67 (±0.57) | 9.67 (±0.57) |
| B. cereus 4384 | 7.67 (±0.57) | 13.67 (±0.57) | 7.67 (±0.57) | 17.30 (±1.14) | 0.00 (±0.00) | 0.00 (±0.00) | 8.30 (±1.05) |
| P. aeruginosa | 6.33 (±0.57) | 11.33 (±0.57) | 8.67 (±0.57) | 16.33 (±0.57) | 4.33 (0.57) | 6.67 (±0.57) | 10.00 (±0.00) |
| E. faecalis | 5.67 (±0.57) | 11.33 (±0.57) | 7.67 (±0.57) | 17.33 (±1.14) | 0 00 (±0.00) | 0.00 (±0.00) | 12.33 (±0.57) |