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Environmental prevalence and persistence of Listeria monocytogenes in cold-smoked trout processing plants

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Author(s): Dimitrijević Mirjana | Anderson R.C. | Karabasil N. | Pavlićević Nataša | Jovanović S. | Nedeljković-Trailović Jelena | Teodorović V. | Marković Maja | Dojčinović S.

Journal: Acta Veterinaria
ISSN 0567-8315

Volume: 61;
Issue: 4;
Start page: 429;
Date: 2011;
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Keywords: cold-smoked trout | Listeria monocytogenes | storage

ABSTRACT
The presence of Listeria monocytogenes on the surfaces of equipment and worker’s hands during different production stages, as well as on fish skin and meat during processing and storage of cold-smoked trout, was investigated. Listeria monocytogenes was recovered from 10 (6.06%) of a total 165 cotton-swabbed samples collected from the surfaces of equipment and worker’s hands at two separate processing facilities. Of 105 samples collected from fish skin and meat during various production steps in both processing plants, 14 (13.33%) were confirmed culture-positive for L. monocytogenes, with recovery being most frequently in samples collected in the area before vacuum packaging. Recovery rates at two different Serbian processing plants did not differ (p
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