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Reduction and inhibition of Listeria monocytogenes in cold-smoked salmon by Verdad N6, a buffered vinegar fermentate, and UV-C treatments.

Heir E, Liland KH, Carlehög M, Holck AL.

Int J Food Microbiol. 2019 Feb 16;291:48-58. doi: 10.1016/j.ijfoodmicro.2018.10.026. Epub 2018 Nov 1.


Listeria monocytogenes strains show large variations in competitive growth in mixed culture biofilms and suspensions with bacteria from food processing environments.

Heir E, Møretrø T, Simensen A, Langsrud S.

Int J Food Microbiol. 2018 Jun 20;275:46-55. doi: 10.1016/j.ijfoodmicro.2018.03.026. Epub 2018 Mar 28.


Complete Genome Sequences of Six Listeria monocytogenes Sequence Type 9 Isolates from Meat Processing Plants in Norway.

Fagerlund A, Langsrud S, Moen B, Heir E, Møretrø T.

Genome Announc. 2018 Feb 15;6(7). pii: e00016-18. doi: 10.1128/genomeA.00016-18.


Survival of Five Strains of Shiga Toxigenic Escherichia coli in a Sausage Fermentation Model and Subsequent Sensitivity to Stress from Gastric Acid and Intestinal Fluid.

Rode TM, McLeod A, Måge I, Heir E, Axelsson L, Holck AL.

Int J Microbiol. 2017;2017:5176384. doi: 10.1155/2017/5176384. Epub 2017 Oct 29.


Cleaning and Disinfection of Biofilms Composed of Listeria monocytogenes and Background Microbiota from Meat Processing Surfaces.

Fagerlund A, Møretrø T, Heir E, Briandet R, Langsrud S.

Appl Environ Microbiol. 2017 Aug 17;83(17). pii: e01046-17. doi: 10.1128/AEM.01046-17. Print 2017 Sep 1.


Transfer Potential of Plasmids Conferring Extended-Spectrum-Cephalosporin Resistance in Escherichia coli from Poultry.

Mo SS, Sunde M, Ilag HK, Langsrud S, Heir E.

Appl Environ Microbiol. 2017 May 31;83(12). pii: e00654-17. doi: 10.1128/AEM.00654-17. Print 2017 Jun 15.


Tolerance to quaternary ammonium compound disinfectants may enhance growth of Listeria monocytogenes in the food industry.

Møretrø T, Schirmer BCT, Heir E, Fagerlund A, Hjemli P, Langsrud S.

Int J Food Microbiol. 2017 Jan 16;241:215-224. doi: 10.1016/j.ijfoodmicro.2016.10.025. Epub 2016 Oct 21.


Contamination of salmon fillets and processing plants with spoilage bacteria.

Møretrø T, Moen B, Heir E, Hansen AÅ, Langsrud S.

Int J Food Microbiol. 2016 Nov 21;237:98-108. doi: 10.1016/j.ijfoodmicro.2016.08.016. Epub 2016 Aug 12.


Biofilm Matrix Composition Affects the Susceptibility of Food Associated Staphylococci to Cleaning and Disinfection Agents.

Fagerlund A, Langsrud S, Heir E, Mikkelsen MI, Møretrø T.

Front Microbiol. 2016 Jun 6;7:856. doi: 10.3389/fmicb.2016.00856. eCollection 2016.


Effect of relevant environmental stresses on survival of enterohemorrhagic Escherichia coli in dry-fermented sausage.

McLeod A, Måge I, Heir E, Axelsson L, Holck AL.

Int J Food Microbiol. 2016 Jul 16;229:15-23. doi: 10.1016/j.ijfoodmicro.2016.04.005. Epub 2016 Apr 12.


Genome Analysis of Listeria monocytogenes Sequence Type 8 Strains Persisting in Salmon and Poultry Processing Environments and Comparison with Related Strains.

Fagerlund A, Langsrud S, Schirmer BC, Møretrø T, Heir E.

PLoS One. 2016 Mar 8;11(3):e0151117. doi: 10.1371/journal.pone.0151117. eCollection 2016.


Microbial dynamics in mixed culture biofilms of bacteria surviving sanitation of conveyor belts in salmon-processing plants.

Langsrud S, Moen B, Møretrø T, Løype M, Heir E.

J Appl Microbiol. 2016 Feb;120(2):366-78. doi: 10.1111/jam.13013.


Intra- and inter-species interactions within biofilms of important foodborne bacterial pathogens.

Giaouris E, Heir E, Desvaux M, Hébraud M, Møretrø T, Langsrud S, Doulgeraki A, Nychas GJ, Kačániová M, Czaczyk K, Ölmez H, Simões M.

Front Microbiol. 2015 Aug 20;6:841. doi: 10.3389/fmicb.2015.00841. eCollection 2015. Review.


Coaggregation between Rhodococcus and Acinetobacter strains isolated from the food industry.

Møretrø T, Sharifzadeh S, Langsrud S, Heir E, Rickard AH.

Can J Microbiol. 2015 Jul;61(7):503-12. doi: 10.1139/cjm-2015-0210. Epub 2015 May 20.


The effects of different hygiene procedures in reducing bacterial contamination in a model domestic kitchen.

Røssvoll E, Langsrud S, Bloomfield S, Moen B, Heir E, Møretrø T.

J Appl Microbiol. 2015 Aug;119(2):582-93. doi: 10.1111/jam.12869. Epub 2015 Jun 30.


The persistence of Salmonella following desiccation under feed processing environmental conditions: a subject of relevance.

Habimana O, Nesse LL, Møretrø T, Berg K, Heir E, Vestby LK, Langsrud S.

Lett Appl Microbiol. 2014 Nov;59(5):464-70. doi: 10.1111/lam.12308. Epub 2014 Aug 14.


Predicting the concentration of verotoxin-producing Escherichia coli bacteria during processing and storage of fermented raw-meat sausages.

Quinto EJ, Arinder P, Axelsson L, Heir E, Holck A, Lindqvist R, Lindblad M, Andreou P, Lauzon HL, Marteinsson VÞ, Pin C.

Appl Environ Microbiol. 2014 May;80(9):2715-27. doi: 10.1128/AEM.03791-13. Epub 2014 Feb 21.


Use of used vs. fresh cheese brines and the effect of pH and salt concentration on the survival of Listeria monocytogenes.

Schirmer BC, Heir E, Lindstedt BA, Møretrø T, Langsrud S.

J Dairy Res. 2014 Feb;81(1):113-9. doi: 10.1017/S0022029913000666.


Consumer preferences, internal color and reduction of shigatoxigenic Escherichia coli in cooked hamburgers.

Røssvoll E, Sørheim O, Heir E, Møretrø T, Olsen NV, Langsrud S.

Meat Sci. 2014 Feb;96(2 Pt A):695-703. doi: 10.1016/j.meatsci.2013.09.009. Epub 2013 Sep 17.


Survival of Shiga toxin-producing Escherichia coli and Stx bacteriophages in moisture enhanced beef.

Langsrud S, Heir E, Rode TM.

Meat Sci. 2014 Jul;97(3):339-46. doi: 10.1016/j.meatsci.2013.09.022. Epub 2013 Oct 3. Review.


Microbial background flora in small-scale cheese production facilities does not inhibit growth and surface attachment of Listeria monocytogenes.

Schirmer BC, Heir E, Møretrø T, Skaar I, Langsrud S.

J Dairy Sci. 2013 Oct;96(10):6161-71. doi: 10.3168/jds.2012-6395. Epub 2013 Jul 25.


Attachment and biofilm formation by foodborne bacteria in meat processing environments: causes, implications, role of bacterial interactions and control by alternative novel methods.

Giaouris E, Heir E, Hébraud M, Chorianopoulos N, Langsrud S, Møretrø T, Habimana O, Desvaux M, Renier S, Nychas GJ.

Meat Sci. 2014 Jul;97(3):298-309. doi: 10.1016/j.meatsci.2013.05.023. Epub 2013 May 23. Review.


Effects of post-processing treatments on sensory quality and Shiga toxigenic Escherichia coli reductions in dry-fermented sausages.

Heir E, Holck AL, Omer MK, Alvseike O, Måge I, Høy M, Rode TM, Sidhu MS, Axelsson L.

Meat Sci. 2013 May;94(1):47-54. doi: 10.1016/j.meatsci.2012.12.020. Epub 2013 Jan 11.


Heterogeneity in resistance to food-related stresses and biofilm formation ability among verocytotoxigenic Escherichia coli strains.

Alvarez-Ordóñez A, Alvseike O, Omer MK, Heir E, Axelsson L, Holck A, Prieto M.

Int J Food Microbiol. 2013 Feb 15;161(3):220-30. doi: 10.1016/j.ijfoodmicro.2012.12.008. Epub 2012 Dec 28.


Performance of two commercial rapid methods for sampling and detection of Listeria in small-scale cheese producing and salmon processing environments.

Schirmer BC, Langsrud S, Møretrø T, Hagtvedt T, Heir E.

J Microbiol Methods. 2012 Nov;91(2):295-300. doi: 10.1016/j.mimet.2012.08.013. Epub 2012 Sep 2.


Microarray-based transcriptome of Listeria monocytogenes adapted to sublethal concentrations of acetic acid, lactic acid, and hydrochloric acid.

Tessema GT, Møretrø T, Snipen L, Heir E, Holck A, Naterstad K, Axelsson L.

Can J Microbiol. 2012 Sep;58(9):1112-23. doi: 10.1139/w2012-091. Epub 2012 Aug 22.


Shiga toxigenic Escherichia coli show strain dependent reductions under dry-fermented sausage production and post-processing conditions.

Rode TM, Holck A, Axelsson L, Høy M, Heir E.

Int J Food Microbiol. 2012 Apr 16;155(3):227-33. doi: 10.1016/j.ijfoodmicro.2012.02.011. Epub 2012 Feb 23.


High stability of Stx2 phage in food and under food-processing conditions.

Rode TM, Axelsson L, Granum PE, Heir E, Holck A, L'abée-Lund TM.

Appl Environ Microbiol. 2011 Aug;77(15):5336-41. doi: 10.1128/AEM.00180-11. Epub 2011 Jun 17.


Reduction of verotoxigenic Escherichia coli in production of fermented sausages.

Holck AL, Axelsson L, Rode TM, Høy M, Måge I, Alvseike O, L'abée-Lund TM, Omer MK, Granum PE, Heir E.

Meat Sci. 2011 Nov;89(3):286-95. doi: 10.1016/j.meatsci.2011.04.031. Epub 2011 May 9. Review.


Assessment of the antibacterial activity of a triclosan-containing cutting board.

Møretrø T, Høiby-Pettersen GS, Habimana O, Heir E, Langsrud S.

Int J Food Microbiol. 2011 Mar 30;146(2):157-62. doi: 10.1016/j.ijfoodmicro.2011.02.017. Epub 2011 Feb 24.


Micro ecosystems from feed industry surfaces: a survival and biofilm study of Salmonella versus host resident flora strains.

Habimana O, Møretrø T, Langsrud S, Vestby LK, Nesse LL, Heir E.

BMC Vet Res. 2010 Nov 2;6:48. doi: 10.1186/1746-6148-6-48.


Reduction of verotoxigenic Escherichia coli by process and recipe optimisation in dry-fermented sausages.

Heir E, Holck AL, Omer MK, Alvseike O, Høy M, Måge I, Axelsson L.

Int J Food Microbiol. 2010 May 24. [Epub ahead of print]


Application of high pressure processing to reduce verotoxigenic E. coli in two types of dry-fermented sausage.

Omer MK, Alvseike O, Holck A, Axelsson L, Prieto M, Skjerve E, Heir E.

Meat Sci. 2010 Dec;86(4):1005-9. doi: 10.1016/j.meatsci.2010.08.008. Epub 2010 Aug 24.


Reduction of verotoxigenic Escherichia coli by process and recipe optimisation in dry-fermented sausages.

Heir E, Holck AL, Omer MK, Alvseike O, Høy M, Måge I, Axelsson L.

Int J Food Microbiol. 2010 Jul 15;141(3):195-202.


Enhanced surface colonization by Escherichia coli O157:H7 in biofilms formed by an Acinetobacter calcoaceticus isolate from meat-processing environments.

Habimana O, Heir E, Langsrud S, Asli AW, Møretrø T.

Appl Environ Microbiol. 2010 Jul;76(13):4557-9. doi: 10.1128/AEM.02707-09. Epub 2010 May 7.


Factors affecting survival of Shigatoxin-producing Escherichia coli on abiotic surfaces.

Møretrø T, Heir E, Mo KR, Habimana O, Abdelgani A, Langsrud S.

Int J Food Microbiol. 2010 Mar 31;138(1-2):71-7. doi: 10.1016/j.ijfoodmicro.2010.01.002. Epub 2010 Jan 11.


Biofilm forming abilities of Salmonella are correlated with persistence in fish meal- and feed factories.

Vestby LK, Møretrø T, Langsrud S, Heir E, Nesse LL.

BMC Vet Res. 2009 May 27;5:20. doi: 10.1186/1746-6148-5-20.


Characterization of the bacterial spoilage flora in marinated pork products.

Schirmer BC, Heir E, Langsrud S.

J Appl Microbiol. 2009 Jun;106(6):2106-16. doi: 10.1111/j.1365-2672.2009.04183.x. Epub 2009 Feb 27.


Discriminatory power, typability, and accuracy of single nucleotide extension microarrays.

Berget I, Heir E, Petcovic J, Rudi K.

J AOAC Int. 2007 May-Jun;90(3):802-9.


Triclosan and antimicrobial resistance in bacteria: an overview.

Yazdankhah SP, Scheie AA, Høiby EA, Lunestad BT, Heir E, Fotland TØ, Naterstad K, Kruse H.

Microb Drug Resist. 2006 Summer;12(2):83-90. Review.


Deletion of pT181-like sequence in an smr-encoding mosaic plasmid harboured by a persistent bovine Staphylococcus warneri strain.

Bjorland J, Steinum T, Sunde M, Waage S, Sviland S, Oppegaard H, Heir E.

J Antimicrob Chemother. 2006 Jan;57(1):46-51. Epub 2005 Nov 12.


Widespread distribution of disinfectant resistance genes among staphylococci of bovine and caprine origin in Norway.

Bjorland J, Steinum T, Kvitle B, Waage S, Sunde M, Heir E.

J Clin Microbiol. 2005 Sep;43(9):4363-8.


Outbreak of Salmonella Livingstone infection in Norway and Sweden due to contaminated processed fish products.

Guerin PJ, De Jong B, Heir E, Hasseltvedt V, Kapperud G, Styrmo K, Gondrosen B, Lassen J, Andersson Y, Aavitsland P.

Epidemiol Infect. 2004 Oct;132(5):889-95.


Molecular epidemiology and disinfectant susceptibility of Listeria monocytogenes from meat processing plants and human infections.

Heir E, Lindstedt BA, Røtterud OJ, Vardund T, Kapperud G, Nesbakken T.

Int J Food Microbiol. 2004 Oct 1;96(1):85-96.


Molecular epidemiology and population genetics of Salmonella subspecies diarizonae in sheep in Norway and Sweden.

Alvseike O, Vardund T, Lindstedt B, Heir E, Eriksson E, Kapperud G.

Epidemiol Infect. 2004 Apr;132(2):253-61.


DNA fingerprinting of Shiga-toxin producing Escherichia coli O157 based on Multiple-Locus Variable-Number Tandem-Repeats Analysis (MLVA).

Lindstedt BA, Heir E, Gjernes E, Vardund T, Kapperud G.

Ann Clin Microbiol Antimicrob. 2003 Dec 10;2:12.


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