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Effect of Lactococcus sp. on the growth of Listeria sp. in the model UHT milk system

Author

Listed:
  • Eva ŠVIRÁKOVÁ

    (Department of Dairy and Fat Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

  • Ivana SLOŽILOVÁ

    (Department of Dairy and Fat Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

  • Petr TICHOVSKÝ

    (Department of Dairy and Fat Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

  • Milada Plocková

    (Department of Dairy and Fat Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

Abstract

The work was aimed at the growth suppression of cultured listerias strains by cultured lactococci strains or commercial mesophilic cheese cultures during common cultivations in the model UHT milk system (0.5% w/w of milk fat content) at 30°C during 18 h aerobically. Milk was primarily fermented by lactococci at the level of 108 CFU/ml and secondarily contaminated by listerias at the level of 103 CFU/ml. The most intensive growth suppressions of both Listeria innocua (CCM 5884 or Ln-03) strains were caused by Lactococcus lactis subsp. lactis (LCC 416 or CHCC 2281) strains or DELVO-ADD® 100-X DSF cheese culture; the listerias growth reductions was from the level of 103 CFU/ml to 100 CFU/ml. Obtained results should be applied to dairy industry provided that HACCP, GHP and GMP systems must be observed.

Suggested Citation

  • Eva ŠVIRÁKOVÁ & Ivana SLOŽILOVÁ & Petr TICHOVSKÝ & Milada Plocková, 2009. "Effect of Lactococcus sp. on the growth of Listeria sp. in the model UHT milk system," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 27(SpecialIs), pages 8-11.
    • Handle: RePEc:caa:jnlcjf:v:27:y:2009:i:specialissue2:id:672-cjfs
    DOI: 10.17221/672-CJFS
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    Cited by:

    1. Ivana SLOŽILOVÁ & Sabina PURKRTOVÁ & Michaela Kosová & Miroslava Mihulová & Eva ŠVIRÁKOVÁ & Kateřina DEMNEROVÁ, 2014. "Antilisterial activity of lactic acid bacteria against Listeria monocytogenes strains originating from different sources," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 32(2), pages 145-151.

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