Microbiological analysis of bovine lymph nodes for the detection of Salmonella enterica

Journal of Food Protection
Dayna M Brichta-HarhayT L Wheeler

Abstract

Bovine peripheral lymph nodes (LNs) have been identified as a potential source of Salmonella when trim containing these nodes is incorporated into ground beef. Studies examining the prevalence of Salmonella in peripheral LNs of cattle are few in number, and the microbiological methods used for these analyses have not been validated. Given that Salmonella contamination may be found on postintervention carcasses, it is important to understand the extent to which Salmonella contamination from surrounding adipose tissue is transferred to LN samples during sample preparation. To better understand the potential for crosscontamination, 906 LN samples were collected from postintervention carcasses and these, along with the corresponding adipose trim (AT), were analyzed for the presence of Salmonella. The results showed that the Salmonella prevalence in LNs and on AT was 0.8 and 5 % , respectively, but that it was possible to find AT positive for Salmonella contamination while the corresponding LNs were negative and vice versa. In order to examine the dynamics of cross-contamination between surface adipose tissue and LNs in the trimming process, inoculation studies were performed. The efficacy of LN submersion in boiling water as a mean...Continue Reading

References

Sep 7, 2006·Journal of Clinical Microbiology·Daniele M NuceraRonald M Weigel
Aug 30, 2008·Journal of Food Protection·Terrance M ArthurMohammad Koohmaraie
Feb 10, 2009·Applied and Environmental Microbiology·Joseph M BosilevacMohammad Koohmaraie
Jan 5, 2011·Emerging Infectious Diseases·Elaine ScallanPatricia M Griffin
Jan 18, 2011·Applied and Environmental Microbiology·Dayna M Brichta-HarhayMohammad Koohmaraie

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Citations

May 22, 2013·Meat Science·Sava BuncicDragan Antic
Oct 1, 2015·Epidemiology and Infection·D L HansonT S Edrington
Nov 28, 2014·Epidemiology and Infection·A S LauferL H Gould
Jul 1, 2016·Journal of Food Protection·Pia Untalan OlafsonThomas S Edrington
Feb 27, 2015·Journal of Food Protection·T R BrownD J Nisbet
Mar 8, 2018·Journal of Food Protection·A D BelkK B Gehring
Nov 25, 2017·Frontiers in Microbiology·Hattie E WebbGuy H Loneragan
Apr 16, 2019·Journal of Food Protection·Joseph M BosilevacMohammad Koohmaraie
May 2, 2019·Poultry Science·Amie M Jones-IbarraT Matthew Taylor
May 28, 2019·Microbiology Resource Announcements·Selma GonzalezKeri N Norman
Mar 28, 2019·Journal of Food Protection·Diego CasasAlejandro Echeverry
Aug 15, 2020·Frontiers in Microbiology·Bo Kyoung HwangBong-Soo Kim
Jan 27, 2019·Journal of Food Protection·Kathryn J NickelsonAshley N Arnold
May 6, 2019·Applied and Environmental Microbiology·Rafaela G FerrariCarlos A Conte-Junior
Aug 28, 2020·Journal of Food Protection·Brogan C HortonAshley N Arnold
Oct 23, 2020·Therapeutic Advances in Vaccines and Immunotherapy·Thomas S EdringtonDavid J Nisbet

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