Table 3.
Bacterial counts in the biofilms of E. faecalis R612-Z1 grown on 24-well flat-bottom polystyrene plates at 37°C for 3 D after treated with thyme oils at different concentrations for 5, 15, 30, and 60 min.
| Treatment time | The bacterial counts in biofilms (log CFU/mL) |
||||
|---|---|---|---|---|---|
| Control | 512 μg/mL | 1,024 μg/mL | 2,048 μg/mL | 4,096 μg/mL | |
| 5 min | 9.39 ± 0.19A,a | 9.29 ± 0.15 | 9.55 ± 0.20A,a | 9.32 ± 0.03A,a | 9.29 ± 0.07A,a |
| 15 min | 9.28 ± 0.28A,a | 9.06 ± 0.17A,a | 9.42 ± 0.15A,a | 5.91 ± 0.82B,b | 5.38 ± 0.21B,b |
| 30 min | 9.33 ± 0.16A,a | 9.12 ± 0.24A,a | 7.78 ± 0.59B,b | 3.57 ± 0.38C,c | 2.09 ± 0.13C,d |
| 60 min | 9.15 ± 0.09A,a | 9.25 ± 0.11A,a | 7.54 ± 0.35B,b | 3.63 ± 0.21C,c | 2.54 ± 0.15C,d |
The different capital letters in the figures indicate that the different treatments had significant differences (P < 0.05). The different small letters in the figures indicate significant differences in the treatments (P < 0.05).