Biofilm production |
* Average OD |
Average OD results |
Number of isolates (%) |
Non- biofilm producer |
≤ ** ODc |
OD ≤ 0.163 |
3 (7.1) |
Weakly- biofilm producer |
ODc < ~ ≤ 2× ODc |
0.163 < OD ≤ 0.326 |
9 (21.4) |
Moderately- biofilm producer |
2× ODc < ~ ≤ 4× ODc |
0.326 < OD ≤ 0.652 |
12 (28.6) |
Strongly- biofilm producer |
> 4× ODc |
> 0.652 |
18 (42.9) |
* Stepanovic et al. (2007) parameters [22]
** Optical density cut-off value (ODc) = average OD of negative control + 3SD of negative control.
|