Table 2.

Decimal reductiona of the numbers of different microbial parameters after 168 h in the in situ inactivation experiments

Experiment no.Decimal reduction of the no. of:
E. colib CFUE. coli O157:H7c CFUSomatic coliphages (PFU)Phages infecting O157:H7 (PFU)Phages infecting O157:H7 and carrying the Stx2 gene (MPN)
  • a Decimal reduction calculated as the decrease in log units.

  • b Naturally occurring E. coli.

  • c Seeded E. coli O157:H7.