PMID: 2118793Jan 1, 1990Paper

Growth of pathogenic Yersinia enterocolitica strains in minced meat with and without protective gas with consideration of the competitive background flora

International Journal of Food Microbiology
N Kleinlein, F Untermann

Abstract

The growth of two pathogenic Yersinia enterocolitica strains (O:3, O:9 at 1 degree C, 4 degrees C, 10 degrees C and 15 degrees C) in minced meat produced under sterile conditions and in minced meat with a normal background flora was investigated. In addition, the influence of treatment with a protective gas (20% CO2, 80% O2) was tested. In minced meat produced under sterile conditions and incubated under normal atmospheric conditions, Y. enterocolitica increased in numbers by only 1 log at 1 degree C and 3.5 logs at 4 degrees C within 14 days. At 10 and 15 degrees C, there was about a 5-log increase in cell numbers within 5 days. There was a marked inhibition of growth by the background flora on Y. enterocolitica. This effect was so marked that only a slight additional inhibition on the growth of Y. enterocolitica at 1, 4 and 10 degrees C was observed under the CO2:O2 modified atmosphere. This is in contrast to the situation where minced meat with a low total bacterial count was used, and the growth of Y. enterocolitica was adversely affected by the CO2:O2 environment. The significance of raw minced meat in the development of human Y. enterocolitica infections is also discussed.

References

Dec 1, 1988·International Journal of Food Microbiology·J K Andersen
Jan 1, 1987·Drugs·J M Hamilton-Miller
Feb 1, 1986·Nihon juigaku zasshi. The Japanese journal of veterinary science·H Fukushima

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Citations

Jul 1, 1991·International Journal of Food Microbiology·D A Mossel, C B Struijk
Jun 1, 1992·International Journal of Food Microbiology·J A HudsonA L Edridge
Feb 1, 1994·International Journal of Food Microbiology·J P Sutherland, A J Bayliss
Jan 1, 1996·International Journal of Food Microbiology·A DohertyD Harrington
Dec 1, 1995·International Journal of Food Microbiology·G D García de FernandoJ A Ordóñez
Apr 4, 2000·Journal of Applied Microbiology·C PinG G de Fernando
Jan 1, 1992·Society for Applied Bacteriology Symposium Series·D A Mossel, C B Struijk
Dec 1, 1995·Letters in Applied Microbiology·A R Davies, A Slade
Jan 1, 2011·Journal of Pathogens·Md Latiful BariDike Ukuku
Feb 18, 2012·International Journal of Food Microbiology·M Fredriksson-AhomaaJ Björkroth
Apr 16, 2005·Journal of Food Protection·Michael GürtlerKarsten Fehlhaber

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