Table 2.
Effect of 0.5x MIC of antibiotics on biofilm formation. Results are the mean ODs for 5 selected E. coli strains.
| Time of incubation [h] | Biofilm formation | |||||||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Control | CIP | AN | CL | |||||
|
|
|
|
|
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| OD(± SD) | [%] | OD(± SD) | [%] | OD(± SD) | [%] | OD(± SD) | [%] | |
| 24 | 0.0048 (± 0.0001) | 100 | 0.0036 (± 0.0001) | 75 | 0.0012 (± 0.0001) | 25 | 0.0035 (± 0.0001) | 73 |
| 48 | 0.0061 (± 0.0001) | 100 | 0.0023 (± 0.0001) | 38 | 0.0016 (± 0.0002) | 26 | 0.0015 (± 0.0001) | 24 |
| 72 | 0.0086 (± 0.0002) | 100 | 0.0022 (± 0.0003) | 25 | 0.0023 (± 0.0001) | 27 | 0.0009 (± 0.0001) | 10 |
CIP: ciprofloxacin; AN: amikacin; CL: colistin.