TABLE 1.
Biofilm production by test strains in presence of capsaicin sub-MICs.
| OD690 at capsaicin sub-MICs (µg/mL) | ||||
|---|---|---|---|---|
| GAS strains | Control | 1/16 (8) | 1/8 (16) | 1/4 (32) |
| 9408 | 0.25 ± 0.06 | 0.41 ± 0.06* (+64%) | 0.44 ± 0.13* (+76%) | 0.40 ± 0.05* (+60%) |
| 68–006 | 0.26 ± 0.04 | 0.32 ± 0.03* (+23%) | 0.33 ± 0.04* (+27%) | 0.36 ± 0.040* (+39%) |
| SP1070 | 0.34 ± 0.06 | 0.45 ± 0.04*(+32%) | 0.52 ± 0.05* (+53%) | 0.42 ± 0.03* (+24%) |
| SP114 | 0.48 ± 0.16 | 0.80 ± 0.25 (+67%) | 0.96 ± 0.09* (+100%) | 0.73 ± 0.14* (+52%) |
| SP55 | 0.72 ± 0.23 | 0.92 ± 0.19* (+28%) | 0.78 ± 0.18 (+8%) | 0.81 ± 0.19 (+13%) |
| 9713 | 0.97 ± 0.18 | 3.44 ± 0.14* (+255%) | 2.92 ± 0.55* (+201%) | 2.08 ± 0.20* (+114%) |
| 152–006 | 1.00 ± 0.17 | 1.34 ± 0.34 (+34%) | 2.14 ± 0.44* (+114%) | 1.12 ± 0.16 (+12%) |
| 1814 | 1.43 ± 0.31 | 3.85 ± 1.11* (+170%) | 3.28 ± 1.11* (+129%) | 1.74 ± 0.14* (+22%) |
Each value represents mean OD690 ± SD of three experiments. The percent increases of biofilm formation also reported. Asterisks denote significant values with respect to the control (p ≤ 0.05). *p ≤ 0.05 with respect to the control.