Development of unique bacterial strains for use as positive controls in the food microbiology testing laboratory.

@article{Blais2008DevelopmentOU,
  title={Development of unique bacterial strains for use as positive controls in the food microbiology testing laboratory.},
  author={Burton W. Blais and Amalia Martinez-Perez and Martine E Gauthier and Raymond Allain and Franco Pagotto and Kevin Daniel Tyler},
  journal={Journal of food protection},
  year={2008},
  volume={71 11},
  pages={
          2301-6
        }
}
Nalidixic acid-resistant (NalR) mutants of Salmonella enterica serovar Berta and Escherichia coli O157:H7 were derived from wild-type laboratory cultures to serve as distinguishable control strains for routine use in food microbiology testing programs. The prevalence of the NalR phenotype among different bacteria was verified using panels of related and unrelated strains with the ability to grow vigorously on plating media containing nalidixic acid, being restricted to the NalR mutants. The… CONTINUE READING
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