Culture time/ optical density value (hours) | Control | 1 ng/mL | 5 ng/mL | 20 ng/mL | 100 ng/mL |
24 | 0.860±0.025 | 0.843±0.056 | 0.805±0.033 | 0.790±0.142 | 0.613±0.137* |
48 | 0.812±0.053 | 0.805±0.123 | 0.773±0.152 | 0.734±0.045 | 0.547±0.173** |
72 | 0.787±0.104 | 0.810±0.089 | 0.750±0.063 | 0.587±0.245** | 0.398±0.067** |
*p<0.05, **p<0.01.