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  • 1 USDA Food Safety Laboratory 10300 Baltimore Avenue Beltsville Maryland 20705-2350 USA
  • 2 USDA Produce Quality and Safety Laboratory, Agricultural Research Service 10300 Baltimore Avenue Beltsville Maryland 20705-2350 USA
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A real-time PCR assay was evaluated for the rapid detection (10 h) of Salmonella in meats using molecular beacon probes available as a commercial kit (iQ-Check, Bio-Rad laboratories). Raw (chicken, pork) and ready-to-eat (RTE) meats were artificially contaminated with Salmonella enterica serovar Typhimurium at the estimated level of 2 to 4 cells per 25 g. After 8 h of pre-enrichment in buffered peptone water, a molecular beacon-based PCR assay was performed to detect contamination in raw and RTE meats. The sensitivity and accuracy of the assay were compared with the conventional USDA microbiological procedure. Comparative evaluation of the USDA procedure with the rapid PCR assay for meat samples (n = 63) revealed 1 false negative pork sample with the PCR assay. All uninoculated controls (n = 34) but one sample were negative by both the 10-h PCR assay and the USDA procedure. Developing rapid pathogen detection methods with shorter pre-enrichment times (8-h) and real-time data monitoring capabilities will benefit the industry in preventing recall of contaminated meats by stopping the contaminated products from being introduced into the marketplace.

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Editor(s)-in-Chief: Benkő, Mária

Managing Editor(s): Székely, András

Editorial Board

      Dénes, Béla
      Eszterbauer, Edit
      Fébel, Hedvig
      Fodor, László
      Harrach, Balázs
      Andras Komaromy (USA)
      Peter Massanyi (Slovak Republic)
      Nagy, Béla
      Németh, Tibor
      Neogrády, Zsuzsanna
      Kurt Pfister (Germany)
      Solti, László
      Szabó, József
      Vajdovich, Péter
      Varga, János
      Štefan, Vilĉek (Slovak Republic)
      Vörös, Károly
      Herbert Weissenböck (Austria)
      Zsarnovszky, Attila

ACTA VETERINARIA HUNGARICA
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Centre for Agricultural Research
Hungarian Academy of Sciences
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