TABLE 1

E. coli MICs and MBCs before and after 10 and 20 passages in residual concentrations of BACa

TreatmentMIC (μg/ml)MBC (μg/ml)
P0P10P20P0P10P20
Controlb505050505050
100 ng/liter BAC5050505050100
1,000 ng/liter BAC5050505050100
  • a Data are the mean MICs and minimum bactericidal concentrations of bacteria before and after BAC exposure and represent samples taken from two separate experiments each with three technical replicates (values did not vary between replicates). Bold text indicates ≥2-fold changes when comparing P0 to P10 or P20. P0, before passages; P10, after 10 passages; P20, after 20 passages.

  • b Control refers to the unpassaged bacterium.