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Viability of multi-strain mixtures of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 inoculated into the batter or onto the surface of a soudjouk-style fermented semi-dry sausage.
Food Microbiol. 2008 Sep; 25(6):793-801.FM

Abstract

The fate of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 were separately monitored both in and on soudjouk. Fermentation and drying alone reduced numbers of L. monocytogenes by 0.07 and 0.74 log(10)CFU/g for sausages fermented to pH 5.3 and 4.8, respectively, whereas numbers of S. typhimurium and E. coli O157:H7 were reduced by 1.52 and 3.51 log(10)CFU/g and 0.03 and 1.11 log(10)CFU/g, respectively. When sausages fermented to pH 5.3 or 4.8 were stored at 4, 10, or 21 degrees C, numbers of L. monocytogenes, S. typhimurium, and E. coli O157:H7 decreased by an additional 0.08-1.80, 0.88-3.74, and 0.68-3.17 log(10)CFU/g, respectively, within 30 days. Storage for 90 days of commercially manufactured soudjouk that was sliced and then surface inoculated with L. monocytogenes, S. typhimurium, and E. coli O157:H7 generated average D-values of ca. 10.1, 7.6, and 5.9 days at 4 degrees C; 6.4, 4.3, and 2.9 days at 10 degrees C; 1.4, 0.9, and 1.6 days at 21 degrees C; and 0.9, 1.4, and 0.25 days at 30 degrees C. Overall, fermentation to pH 4.8 and storage at 21 degrees C was the most effective treatment for reducing numbers of L. monocytogenes (2.54 log(10)CFU/g reduction), S. typhimurium (> or =5.23 log(10)CFU/g reduction), and E. coli O157:H7 (3.48 log(10)CFU/g reduction). In summary, soudjouk-style sausage does not provide a favorable environment for outgrowth/survival of these three pathogens.

Authors+Show Affiliations

Microbial Food Safety Research Unit, US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18620971

Citation

Porto-Fett, A C S., et al. "Viability of Multi-strain Mixtures of Listeria Monocytogenes, Salmonella Typhimurium, or Escherichia Coli O157:H7 Inoculated Into the Batter or Onto the Surface of a Soudjouk-style Fermented Semi-dry Sausage." Food Microbiology, vol. 25, no. 6, 2008, pp. 793-801.
Porto-Fett AC, Hwang CA, Call JE, et al. Viability of multi-strain mixtures of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 inoculated into the batter or onto the surface of a soudjouk-style fermented semi-dry sausage. Food Microbiol. 2008;25(6):793-801.
Porto-Fett, A. C., Hwang, C. A., Call, J. E., Juneja, V. K., Ingham, S. C., Ingham, B. H., & Luchansky, J. B. (2008). Viability of multi-strain mixtures of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 inoculated into the batter or onto the surface of a soudjouk-style fermented semi-dry sausage. Food Microbiology, 25(6), 793-801. https://doi.org/10.1016/j.fm.2008.04.012
Porto-Fett AC, et al. Viability of Multi-strain Mixtures of Listeria Monocytogenes, Salmonella Typhimurium, or Escherichia Coli O157:H7 Inoculated Into the Batter or Onto the Surface of a Soudjouk-style Fermented Semi-dry Sausage. Food Microbiol. 2008;25(6):793-801. PubMed PMID: 18620971.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Viability of multi-strain mixtures of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 inoculated into the batter or onto the surface of a soudjouk-style fermented semi-dry sausage. AU - Porto-Fett,A C S, AU - Hwang,C-A, AU - Call,J E, AU - Juneja,V K, AU - Ingham,S C, AU - Ingham,B H, AU - Luchansky,J B, Y1 - 2008/05/07/ PY - 2008/01/07/received PY - 2008/04/25/revised PY - 2008/04/27/accepted PY - 2008/7/16/pubmed PY - 2008/10/22/medline PY - 2008/7/16/entrez SP - 793 EP - 801 JF - Food microbiology JO - Food Microbiol VL - 25 IS - 6 N2 - The fate of Listeria monocytogenes, Salmonella typhimurium, or Escherichia coli O157:H7 were separately monitored both in and on soudjouk. Fermentation and drying alone reduced numbers of L. monocytogenes by 0.07 and 0.74 log(10)CFU/g for sausages fermented to pH 5.3 and 4.8, respectively, whereas numbers of S. typhimurium and E. coli O157:H7 were reduced by 1.52 and 3.51 log(10)CFU/g and 0.03 and 1.11 log(10)CFU/g, respectively. When sausages fermented to pH 5.3 or 4.8 were stored at 4, 10, or 21 degrees C, numbers of L. monocytogenes, S. typhimurium, and E. coli O157:H7 decreased by an additional 0.08-1.80, 0.88-3.74, and 0.68-3.17 log(10)CFU/g, respectively, within 30 days. Storage for 90 days of commercially manufactured soudjouk that was sliced and then surface inoculated with L. monocytogenes, S. typhimurium, and E. coli O157:H7 generated average D-values of ca. 10.1, 7.6, and 5.9 days at 4 degrees C; 6.4, 4.3, and 2.9 days at 10 degrees C; 1.4, 0.9, and 1.6 days at 21 degrees C; and 0.9, 1.4, and 0.25 days at 30 degrees C. Overall, fermentation to pH 4.8 and storage at 21 degrees C was the most effective treatment for reducing numbers of L. monocytogenes (2.54 log(10)CFU/g reduction), S. typhimurium (> or =5.23 log(10)CFU/g reduction), and E. coli O157:H7 (3.48 log(10)CFU/g reduction). In summary, soudjouk-style sausage does not provide a favorable environment for outgrowth/survival of these three pathogens. SN - 1095-9998 UR - https://www.unboundmedicine.com/medline/citation/18620971/Viability_of_multi_strain_mixtures_of_Listeria_monocytogenes_Salmonella_typhimurium_or_Escherichia_coli_O157:H7_inoculated_into_the_batter_or_onto_the_surface_of_a_soudjouk_style_fermented_semi_dry_sausage_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0740-0020(08)00081-6 DB - PRIME DP - Unbound Medicine ER -