resulting pellets were washed twice and resuspended in sterile 0.1% (w/v) peptone solution. Before testing, the concentration of each bacterium was adjusted to 107 CFU/ml with sterile peptone solution
resultingpellets were washed twice and resuspended in sterile 0.1% (w/v)peptone solution. Before testing, the concentration of each bacteriumwas adjusted to 107 CFU/ml with sterile peptone solution