Table 2.
Inactivation of S. aureus biofilm cells by different treatments.
| Treatments | S. aureus biofilm cells (lg CFU/mL) at min: | ||||
|---|---|---|---|---|---|
| 5 | 10 | 20 | 30 | 60 | |
| Control | 9.43 ± 0.02A | 9.42 ± 0.04A | 9.42 ± 0.08A | 9.43 ± 0.05A | 9.42 ± 0.10A |
| US | 9.35 ± 0.04B | 9.31 ± 0.02B | 9.28 ± 0.01B | 9.21 ± 0.04B | 9.00 ± 0.05B |
| 0.5% CA | 9.30 ± 0.04B | 9.21 ± 0.11C | 9.08 ± 0.06C | 8.35 ± 0.04C | 6.75 ± 0.10C |
| 1% CA | 9.25 ± 0.06C | 9.12 ± 0.02C | 8.34 ± 0.10D | 7.63 ± 0.16E | 4.60 ± 0.12D |
| 2% CA | 9.09 ± 0.03D | 8.95 ± 0.02D | 6.99 ± 0.09F | 6.68 ± 0.05F | 4.21 ± 0.06E |
| US plus 0.5% CACA | 9.03 ± 0.03D | 8.85 ± 0.04E | 8.20 ± 0.02E | 8.03 ± 0.20D | 3.83 ± 0.15F |
| US plus 1% CA | 8.98 ± 0.05E | 8.69 ± 0.05F | 6.90 ± 0.13F | 5.02 ± 0.07G | 3.57 ± 0.08G |
| US plus 2% CA | 8.86 ± 0.08F | 8.55 ± 0.06G | 6.06 ± 0.06G | 3.90 ± 0.23H | 3.10 ± 0.11H |
Different lower cases indicate significant differences among treatments (p < 0.05).