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Biography Trond Møretrø

Research work I belong to the microbiology group at Nofima at Ås where I mainly work with projects focusing on understanding how microorganisms grow and survive in food and in the food industry. More specifically I work with stress responses to acid, disinfectants, etc. and biofilm formation of food associated bacteria. For this purpose we are using both general microbiological methods and molecular methods, recently including whole genome sequencing. I am also involved in work using spectroscopy (FT-IR) for classification and identification of microorganisms. Much of my work involves applied projects together with food industry with focus on food quality and food safety. Examples are industry project with Listeria monocytogenes, Salmonella, foodborne viruses and quality reducing bacteria and moulds. We work with suppliers of cleaning agents and disinfectants to improve the hygiene in the food industry.Education MS in general microbiology from University of Bergen, Norway (1995) and PhD in microbiology/biotechnology (studies on bacteriocins from lactic acid bacteria) from Norwegian University of Life Sciences, Norway (2000).

Trond has 69 scientific publications in Cristin:

Møretrø, Trond; Schirmer, Bjørn Christian; Heir, Even; Fagerlund, Annette; Hjemli, Pernille; Hjemli, Pernille; Langsrud, Solveig; 2017: Tolerance to quaternary ammonium compound disinfectants may enhance growth of Listeria monocytogenes in the food industry

Fagerlund, Annette; Møretrø, Trond; Heir, Even; Briandet, Romain; Langsrud, Solveig; 2017: Cleaning and disinfection of biofilms composed of Listeria monocytogenes and background microbiota from meat processing surfaces

Møretrø, Trond; Schirmer, Bjørn Christian; Heir, Even; Langsrud, Solveig; 2017: In situ evaluation of citric acid powder to control Listeria monocytogenes on floors in meat processing plants

Møretrø, Trond; Langsrud, Solveig; 2017: Residential Bacteria on Surfaces in the Food Industry and Their Implications for Food Safety and Quality

Shapaval, Volha; Møretrø, Trond; Åsli, Anette Wold; Suso, Henri-Pierre; Schmitt, J; Lillehaug, D.; Kohler, Achim; 2017: A novel library-independent approach based on high-throughput cultivation in Bioscreen and fingerprinting by FTIR spectroscopy for microbial source tracking in food industry

Langsrud, Solveig; Moen, Birgitte; Møretrø, Trond; Løype, Marie; Løype, Marie; Heir, Even; 2016: Microbial dynamics in mixed culture biofilms of bacteria surviving sanitation of conveyor belts in salmon-processing plants

Fagerlund, Annette; Langsrud, Solveig; Schirmer, Bjørn Christian; Møretrø, Trond; Heir, Even; 2016: Genome Analysis of Listeria monocytogenes Sequence Type 8 Strains Persisting in Salmon and Poultry Processing Environments and Comparison with Related Strains

Fagerlund, Annette; Langsrud, Solveig; Heir, Even; Mikkelsen, Maria Ingeborg; Mikkelsen, Maria Ingeborg; Møretrø, Trond; 2016: Biofilm matrix composition affects the susceptibility of food associated staphylococci to cleaning and disinfection agents

Møretrø, Trond; Moen, Birgitte; Heir, Even; Hansen, Anlaug Ådland; Langsrud, Solveig; 2016: Contamination of salmon fillets and processing plants with spoilage bacteria

Moen, Birgitte; Røssvoll, Elin Halbach; Måge, Ingrid; Møretrø, Trond; Langsrud, Solveig; 2016: Microbiota formed on attached stainless steel coupons correlates with the natural biofilm of the sink surface in domestic kitchens

Møretrø, Trond; Sharifzadeh, Shahab; Sharifzadeh, Shahab; Langsrud, Solveig; Heir, Even; Rickard, A.H.; 2015: Coaggregation between Rhodococcus and Acinetobacter strains isolated from the food industry

Røssvoll, Elin Halbach; Langsrud, Solveig; Bloomfield, S; Moen, Birgitte; Heir, Even; Møretrø, Trond; 2015: The effects of different hygiene procedures in reducing bacterial contamination in a model domestic kitchen

Giaouris, Efstathios; Heir, Even; Desvaux, Mickaël; Hébraud, Michel; Møretrø, Trond; Langsrud, Solveig; Doulgeraki, Agapi; Nychas, George-John; Ka?ániová, Miroslava; Czaczyk, Katarzyna; Ölmez, Hülya; Simões, Manuel; 2015: Intra- and inter-species interactions within biofilms of important foodborne bacterial pathogens

Stevens, Michael R. E.; Luo, Ting L.; Vornhagen, Jay; Jacubovics, Nick; Gilsdorf, Janet; Marrs, Carl; Møretrø, Trond; Rickhard, Alexander H.; 2015: Coaggregation occurs between microorganisms isolated from different environments

Moen, Birgitte; Røssvoll, Elin Halbach; Måge, Ingrid; Møretrø, Trond; Langsrud, Solveig; 2015: Microbiota formed on attached stainless steel coupons correlates with the natural biofilm of the sink surface in domestic kitchens

Stevens, Michael R. E.; Ting, L. Luo; Vornhagen, Jay; Jakubovics, Nicholas S.; Gilsdorf, Janet; Marrs, Carl; Møretrø, Trond; Rickard, A.H.; 2015: Coaggregation occurs between microorganisms isolated from different environments

Giaouris, E. D.; Heir, Even; Hébraud, M.; Chorianopoulos, N.; Langsrud, Solveig; Møretrø, Trond; Habimana, Olivier; Desvaux, M.; Renier, S.; Nychas, G.-J.; 2014: Attachment and biofilm formation by foodborne bacteria in meat processing environments: Causes, implications, role of bacterial interactions and control by alternative novel methods

Habimana, Olivier; Nesse, Live Lingaas; Møretrø, Trond; Berg, Kristin; Heir, Even; Vestby, Lene Karine; Langsrud, Solveig; 2014: The persistence of Salmonella following desiccation under feed processing environmental conditions: a subject of relevance

Røssvoll, Elin Halbach; Sørheim, Oddvin; Heir, Even; Møretrø, Trond; Olsen, Nina Veflen; Langsrud, Solveig; 2014: Consumer preferences, internal color and reduction of shigatoxigenic Escherichia coli in cooked hamburgers

Schirmer, Bjørn Christian; Heir, Even; Lindstedt, Bjørn Arne; Møretrø, Trond; Langsrud, Solveig; 2014: Use of used vs. fresh cheese brines and the effect of pH and salt concentration on the survival of Listeria monocytogenes

Larsen, Marianne Halberg; Dalmasso, Marion; Ingmer, Hanne; Langsrud, Solveig; Malakauskas, Mindaugas; Mader, Anneluise; Møretrø, Trond; Smole Možina, Sonja; Rychli, Kathrin; Wagner, Martin; Wallace, R. John; Zentek, Jurgen; Jordan, Kieran; 2014: Persistence of foodborne pathogens and their control in primary and secondary food production chains

Røssvoll, Elin Halbach; Rønning, Helene; Granum, Per Einar; Møretrø, Trond; Røine, Marianne; Langsrud, Solveig; 2014: Toxin production and growth of pathogens subjected to temperature fluctuations simulating consumer handling of cold cuts

Giaouris, E. D.; Heir, Even; Hébraud, M.; Chorianopoulos, Nikos; Langsrud, Solveig; Møretrø, Trond; Habimana, Olivier; Desvaux, Mickaël; Renier, S.; Nychas, George-John; 2014: Attachment and biofilm formation by foodborne bacteria in meat processing environments: Causes, implications, role of bacterial interactions and control by alternative novel methods

Møretrø, Trond; Langsrud, Solveig; Heir, Even; 2013: Bacteria on meat abattoir meat production process surfaces after sanitation: Characterisation of survival properties of Listeria monocytogenes and the commensal bacterial flora

Røssvoll, Elin Halbach; Sørheim, Oddvin; Heir, Even; Møretrø, Trond; Olsen, Nina Veflen; Langsrud, Solveig; 2013: Cooking hamburgers at home - consumer preferences, internal color and survival of shigatoxigenic Eschericia coli

Schirmer, Bjørn Christian; Heir, Even; Møretrø, Trond; Skaar, Ida; Langsrud, Solveig; 2013: Microbial background flora in small-scale cheese production facilities does not inhibit growth and surface attachment of Listeria monocytogenes

Shapaval, Volha; Schmitt, J.; Møretrø, Trond; Suso, Henri-Pierre; Skaar, Ida; Åsli, Anette Wold; Lillehaug, Dag; Kohler, Achim; 2013: Characterization of food spoilage fungi by FTIR spectroscopy

Shapaval, Volha; Walczak, Beata; Gognies, Sabine; Møretrø, Trond; Suso, Henri-Pierre; Åsli, Anette Wold; Belarbi, Abdelkader; Kohler, Achim; 2013: FTIR spectroscopic characterization of differently cultivated food related yeasts

Tessema, Girum Tadesse; Møretrø, Trond; Snipen, Lars; Heir, Even; Holck, Askild Lorentz; Naterstad, Kristine; Axelsson, Lars; 2012: Microarray-based transcriptome of Listeria monocytogenes adapted to sublethal concentrations of acetic acid, lactic acid, and hydrochloric acid

Schirmer, Bjørn Christian; Langsrud, Solveig; Møretrø, Trond; Hagtvedt, Therese; Heir, Even; 2012: Performance of two commercial rapid methods for sampling and detection of Listeria in small-scale cheese producing and salmon processing environments

Møretrø, Trond; Heir, Even; Nesse, Live Lingaas; Vestby, Lene Karine; Langsrud, Solveig; 2012: Control of Salmonella in food related environments by chemical disinfection

Rode, Tone Mari; Møretrø, Trond; Langsrud, Solveig; Holck, Askild Lorentz; 2012: Responses of Staphylococcus Aureus to Environmental Stresses

Møretrø, Trond; Høiby-Pettersen, Gunn Sigrid; Halvorsen, Catherine Kjølberg; Langsrud, Solveig; 2012: Antibacterial activity of cutting boards containing silver

Møretrø, Trond; Høiby-Pettersen, Gunn Sigrid; Habimana, Olivier; Heir, Even; Langsrud, Solveig; 2011: Assessment of the antibacterial activity of a triclosan-containing cutting board

Møretrø, Trond; Langsrud, Solveig; 2011: Effects of Materials Containing Antimicrobial Compounds on Food Hygiene

Tessema, Girum Tadesse; Møretrø, Trond; Snipen, Lars; Axelsson, Lars; Naterstad, Kristine; 2011: Global Transcriptional Analysis of Spontaneous Sakacin P-Resistant Mutant Strains of Listeria monocytogenes during Growth on Different Sugars

Habimana, Olivier; Heir, Even; Langsrud, Solveig; Åsli, Anette Wold; Møretrø, Trond; 2010: Enhanced Surface Colonization by Escherichia coli O157:H7 in Biofilms Formed by an Acinetobacter calcoaceticus Isolate from Meat-Processing Environments

Habimana, Olivier; Møretrø, Trond; Langsrud, Solveig; Vestby, Lene Karine; Nesse, Live Lingaas; Heir, Even; 2010: Micro ecosystems from feed industry surfaces: a survival and biofilm study of Salmonella versus host resident flora strains

Møretrø, Trond; Heir, Even; Mo, Karin Rangøy; Habimana, Olivier; Abdelghani, Ahmed Moheyeldin; Langsrud, Solveig; 2010: Factors affecting survival of Shigatoxin-producing Escherichia coli on abiotic surfaces

Rode, Tone Mari; Møretrø, Trond; Langsrud, Solveig; Langsrud, Øyvind; Vogt, Kjell Gjermund; Holck, Askild Lorentz; 2010: Responses of Staphylococcus aureus exposed to HCl and organic acid stress

Shapaval, Volha; Møretrø, Trond; Suso, Henri-Pierre; Åsli, Anette Wold; Schmitt, Jurgen; Lillehaug, Dag; Martens, Harald; Böcker, Ulrike; Kohler, Achim; 2010: A high-throughput microcultivation protocol for FTIR spectroscopic characterization and identification of fungi

Vestby, Lene Karine; Lönn-Stensrud, Jessica; Møretrø, Trond; Langsrud, Solveig; Scheie, Anne A.; Benneche, Tore; Nesse, Live Lingaas; 2010: A synthetic furanone potentiates the effect of disinfectants on Salmonella in biofilm

Asefa, Dereje; Møretrø, Trond; Gjerde, Ragnhild O.; Langsrud, Solveig; Kure, Cathrine F.; Sidhu, Maan Singh; Nesbakken, Truls; Skaar, Ida; 2009: Yeast diversity and dynamics in the production processes of Norwegian dry-cured meat products

Møretrø, Trond; Vestby, Lene Karine; Nesse, Live Lingaas; Storheim, Sigrun; Kotlarz, Katrine; Langsrud, Solveig; 2009: Evaluation of efficacy of disinfectants against Salmonella from the feed industry

Rode, Tone Mari; Berget, Ingunn; Langsrud, Solveig; Møretrø, Trond; Holck, Askild Lorentz; 2009: MALDI-TOF mass spectrometry for quantitative gene expression analysis of acid responses in Staphylococcus aureus

Schirmer, Bjørn Christian; Heiberg, Ragnhild; Eie, Thomas; Møretrø, Trond; Maugesten, Tove; Maugesten, Tove; Carlehøg, Mats; Langsrud, Solveig; 2009: A novel packaging method with a dissolving CO2 headspace combined with organic acids prolongs the shelf life of fresh salmon

Tessema, Girum Tadesse; Møretrø, Trond; Kohler, Achim; Axelsson, Lars; Naterstad, Kristine; 2009: Complex Phenotypic and Genotypic Responses of Listeria monocytogenes Strains Exposed to the Class IIa Bacteriocin Sakacin

Vestby, Lene Karine; Møretrø, Trond; Ballance, Simon; Langsrud, Solveig; Nesse, Live Lingaas; 2009: Survival potential of wild type cellulose deficient Salmonella from the feed industry

Vestby, Lene Karine; Møretrø, Trond; Langsrud, Solveig; Heir, Even; Nesse, Live Lingaas; 2009: Biofilm forming abilities of Salmonella are correlated with persistence in fish meal- and feed factories

Janbu, Astrid Oust; Møretrø, Trond; Bertrand, Dominique; Kohler, Achim; 2008: FT-IR microspectroscopy: a promising method for the rapid identification of Listeria species

Andresen, Martin; Stenstad, Per Martin; Møretrø, Trond; Langsrud, Solveig; Syverud, Kristin; Johansson, Leena-Sisko; Stenius, Per; 2007: Nonleaching antimicrobial films prepared from surface modified microfibrillated cellulose

Bore, Erlend; Hebraud, Michel; Chafsey, Ingrid; Chambon, Christophe; Skjæret, Camilla; Moen, Birgitte; Møretrø, Trond; Langsrud, Øyvind; Rudi, Knut; Langsrud, Solveig; 2007: Adapted tolerance to benzalkonium chloride in Escherichia coli K-12 studied by transcriptome and proteome analyses

Rode, Tone Mari; Langsrud, Solveig; Holck, Askild Lorentz; Møretrø, Trond; 2007: Different patterns of biofilm formation in Staphylococcus aureus under food-related stress conditions

Langsrud, Solveig; Seifert, Linn; Møretrø, Trond; 2006: Characterization of the Microbial Flora in Disinfecting Footbaths with Hypochlorite

Møretrø, Trond; Sonerud, Tonje; Mangelrød, Ellen; Langsrud, Solveig; 2006: Evaluation of the Antibacterial Effect of a Triclosan-Containing Floor Used in the Food Industry

Oust, Astrid; Møretrø, Trond; Naterstad, Kristine; Sockalingum, Ganesh D.; Adt, Isabelle; Manfait, Michel; Kohler, Achim; 2006: Fourier transform infrared and Raman spectroscopy for characterization of Listeria monocytogenes strains

Møretrø, Trond; Naterstad, Kristine; Wang, Ellen; Aasen, Inga Marie; Chaillou, Stephane; Zagorec, Monique; Axelsson, Lars; 2005: Sakacin P non-producing Lactobacillus sakei strains contain homologues of the sakacin P gene cluster

Møretrø, Trond; Daeschel, M. A.; 2004: Wine is bactericidal to foodborne pathogens

Møretrø, Trond; Langsrud, Solveig; 2004: Listeria monocytogenes: Biofilm formation and persistence in food processing environments

Oust, Astrid; Møretrø, Trond; Kirschner, Carolin; Narvhus, Judith; Kohler, Achim; 2004: Evaluation of the robustness of FT-IR spectra of lactobacilli towards changes in the bacterial growth conditions

Oust, Astrid; Møretrø, Trond; Kirschner, Carolin; Narvhus, Judith; Kohler, Achim; 2004: FT-IR spectroscopy for identification of closely related lactobacilli

Oust, Astrid; Møretrø, Trond; Møretrø, Trond; Kirschner, Carolin; Narvhus, Judith; Kohler, Achim; Kohler, Achim; 2004: FTIR spectroscopy for identification of closely related lactobacilli

Aasen, Inga Marie; Markussen, Sidsel; Møretrø, Trond; Katla, Tone; Axelsson, Lars; Naterstad, Kristine; 2003: Interactions of the bacteriocins sakacin P and nisin with food constituents

Langsrud, Solveig; Møretrø, Trond; Sundheim, G.; 2003: Characterization of serratia-marcescens strains surviving in disinfecting footbaths

Møretrø, Trond; Hermansen, Lene; Holck, Askild Lorentz; Sidhu, Maan S; Rudi, Knut; Langsrud, Solveig; 2003: Biofilm formation and presence of the intercellular adhesion locus ica among staphylococci from food and food processing environments

Møretrø, Trond; Midtgaard, Eiri S.; Nesse, Live Lingaas; Langsrud, Solveig; 2003: Susceptibility of Salmonella isolated from fish feed factories to disinfectants and air-drying at surfaces

Katla, Tone; Møretrø, Trond; Sveen, I; Aasen, Inga Marie; Axelsson, Lars; Rørvik, Liv Marit; Naterstad, Kristine; 2002: Inhibition of Listeria monocytogenes in chicken cold cuts by addition of sakacin P and sakacin P-producing Lactobacillus sakei

Rudi, Knut; Nogva, Hege Karin; Moen, Birgitte; Nissen, Hilde; Bredholt, Sylvia; Møretrø, Trond; Naterstad, Kristine; Holck, Askild Lorentz; 2002: Development and application of new nucleic acid-based technologies for microbial community analyses in foods

Katla, Tone; Møretrø, Trond; Aasen, Inga Marie; Holck, Askild Lorentz; Axelsson, Lars; Naterstad, Kristine; 2001: Inhibition of Listeria monocytogenes in cold smoked salmon by addition of sakacin P and/or live Lactobacillus sakei cultures