Use of pediocin (ALTA-™2341) for control of Listeria monocytogenes on frankfurters

Frankfurters were surfaced-inoculated with a 5-strain mixture of Listeria monocytogenes (3.40 or 5.20 log CFU/g) and vacuum packaged (as one link, 5 links or 10 links per package) after treatments with 3, 000 AU or 6, 000 AU of pediocin (in ALTA(TM)2341) per link. Treatments were evaluated for L. monocytogenes counts initially and during storage (4C, 10C and 25C) for up to 12 weeks. The populations of L. monocytogenes were reduced by addition of pediocin but were unaffected by the number of frankfurters per package. Treatments stored at 4C with pediocin effectively prolonged the time prior to growth of L. monocytogenes for 7 weeks and reduced the growth of L. monocytogenes for up to 12 weeks.