TABLE 6.
Preventol CMK (500 mg/liter) susceptibility of M. immunogenum strain ATCC 700505T cells grown for 4 weeks
| Duration of exposure (h) | Fraction surviving after biocide exposure under indicated growth conditionsa,b
|
|||
|---|---|---|---|---|
| Suspension | Glass biofilm | Copper biofilm | Galvanized bead biofilm | |
| 0 | 1.00 | 1.00 | 1.00 | 1.00 |
| 3 | 0.64 | 0.94 | 0.71 | 0.90 |
| 6 | 0.11 | 0.61 | 0.39 | 0.36 |
| 24 | <0.0014 | 0.008 | 0.005 | 0.004 |
a
Cells were suspended in D/E broth for 30 min following biocide exposure.
b
Calculated as biocide-exposed CFU divided by control CFU for the same exposure duration from an average of two independent experiments.