title: Effect of combining nisin with modified atmosphere packaging on inhibition of Listeria monocytogenes in ready-to-eat turkey bologna.
abstract: ABSTRACT The objective of this study was to evaluate the effect of nisin in combination with different types of packaging on the survival of Listeria monocytogenes in ready-to-eat low-fat turkey bologna. Bologna was inoculated with L. monocytogenes exposed to 1 of 6 treatments: 3 packaging treatments (100% CO2, air, vacuum), each with and without nisin. Bologna was refrigerated and sampled 9 times over 42 d. Nisin reduced initial L. monocytogenes populations by 1.5 to 2 log cycles and 100% CO2 packaging prevented outgrowth throughout 42 d of storage, whereas non-CO2 packaging displayed a 2-log increase in population during storage. Nisin (500 IU/mL) combined with 100% CO2 was effective in reducing Listeria and preventing outgrowth on bologna over 42 d of refrigerated storage.
authors.affiliation: Department of Food Hygiene, University of Tripoli, Tripoli, Libya.
authors.forename: Hesham
authors.initials: H
authors.lastname: Naas
authors.forename: Rose
authors.initials: R
authors.lastname: Martinez-Dawson
authors.forename: Inyee
authors.initials: I
authors.lastname: Han
authors.forename: Paul
authors.initials: P
authors.lastname: Dawson
mesh_terms: D000818:Animals; D001272:Atmosphere; D005516:Food Microbiology; D018857:Food Packaging / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008089:Listeria monocytogenes / Q000187:drug effects* / Q000302:isolation & purification; D008461:Meat Products / Q000382:microbiology*; D009561:Nisin / Q000494:pharmacology*; D012034:Refrigeration; D014422:Turkeys
chemical_list: D009561:Nisin