TABLE 3.
Maximum thicknesses observed for E. coli ATCC 12806 adapted and/or exposed to subinhibitory concentrations of food-grade biocidesa
| Culture exposed to: | Maximum thickness (μm) of biofilms of culture previously adapted to: |
|||
|---|---|---|---|---|
| NC | TSP | SNI | SHY | |
| NC | 19.7 ± 0.6ABa | 17.3 ± 1.5Aa | 36.0 ± 2.0Ca | 20.3 ± 0.6Bab |
| TSP | 21.0 ± 2.7Aa | 21.3 ± 1.5Aa | 14.3 ± 3.2Bb | 21.0 ± 1.0Aab |
| SNI | 20.7 ± 4.0Aa | 8.0 ± 1.0Bb | 20.0 ± 1.0Ac | 18.3 ± 2.3Aa |
| SHY | 23.0 ± 1.0Aa | 19.0 ± 1.0Ba | 23.0 ± 2.0Ac | 23.3 ± 2.1Ab |
a
For information on interpretation, see the footnotes to Table 1.