Biografi Even Heir
Jeg jobber som forsker innenfor Trygg og Holdbar mat i Divisjon Mat. Jeg jobber spesielt med Trygg mat problematikk for å forstå hvordan uønskede bakterier kan vokse og overleve i mat og matproduksjonsmiljøer innenfor både landbasert matproduksjon og sjømatproduksjon. Arbeidet inkluderer hele matkjeden fra råvarer til produkt hos forbruker. Jeg har jobbet mye med matbårne, sykdomsfremkallende bakterier (eks. Escherichia coli, Listeria monocytogenes, Salmonella), men jobber også med kvalitetsforringende bakterier. I arbeidet genererer vi kunnskap om bruk av nye teknologier for å drepe bakterier i mat og miljø, vaske- og desinfeksjonsstrategier og nye kombinerte strategier («hinderteknologi»). Kompetanseoverføring til næringen innen disse områdene er en viktig del av arbeidet som gir industrien økt grunnlag for produksjon av trygg og holdbar mat med høy kvalitet. Jeg er spesielt interessert i biofilmdannelse hos bakterier og hvordan bakterier kan tilpasse seg/adapteres til betingelser i mat og matproduksjonsmiljøer. Jeg er utdannet sivilingeniør fra NTH (NTNU) og ferdigstilte min Ph.D. i 1998 (Resistens mot desinfeksjonsmidler hos stafylokokker). I perioden 1998-2003 jobbet jeg ved Nasjonalt folkehelseinstitutt med bruk av molekylære metoder for karakterisering og typing av matbårne patogene bakterier.
Even har 61 vitenskapelige publikasjoner i Cristin:
Fagerlund, Annette; Langsrud, Solveig; Moen, Birgitte; Heir, Even; Møretrø, Trond; 2018: Complete genome sequences of six Listeria monocytogenes sequence type 9 isolates from meat processing plants in Norway
Heir, Even; Møretrø, Trond; Simensen, Andreas; Simensen, Andreas; Langsrud, Solveig; 2018: Listeria monocytogenes strains show large variations in competitive growth in mixed culture biofilms and suspensions with bacteria from food processing environments
Heir, Even; Liland, Kristian Hovde; Carlehög, Mats; Holck, Askild Lorentz; 2018: Reduction and inhibition of Listeria monocytogenes in cold-smoked salmon by Verdad N6, a buffered vinegar fermentate, and UV-C treatments
Holck, Askild Lorentz; Liland, Kristian Hovde; Carlehög, Mats; Heir, Even; 2018: Reductions of Listeria monocytogenes on cold-smoked and raw salmon fillets by UV-C and pulsed UV light
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
Mo, Solveig Sølverød; Sunde, Marianne; Ilag, Hanna Karin; Ilag, Hanna Karin; Langsrud, Solveig; Heir, Even; 2017: Transfer Potential of Plasmids Conferring Extended-Spectrum-Cephalosporin Resistance in Escherichia coli from Poultry
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
Holck, Askild Lorentz; Axelsson, Lars; McLeod, Anette; Rode, Tone Mari; Heir, Even; 2017: Health and safety considerations of fermented sausages
Rode, Tone Mari; McLeod, Anette; Måge, Ingrid; Heir, Even; Axelsson, Lars; Holck, Askild Lorentz; 2017: 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
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
McLeod, Anette; Måge, Ingrid; Heir, Even; Axelsson, Lars; Holck, Askild Lorentz; 2016: Effect of relevant environmental stresses on survival of enterohemorrhagic Esherichia coli in dry-fermented sausage
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
Holck, Askild Lorentz; Heir, Even; Johannessen, T.C.; Axelsson, Lars; 2014: North European products
Quinto, E.J.; Arinder, P.; Axelsson, Lars; Heir, Even; Holck, Askild Lorentz; Lindqvist, R.; Lindblad, M.; Andreou, P.; Lauzon, H.L.; Marteinsson, V. P; Pin, C.; 2014: Predicting the concentration of verotoxin-producing Escherichia coli bacteria during processing and storage of fermented raw-meat sausages
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
Langsrud, Solveig; Heir, Even; Rode, Tone Mari; 2014: Survival of Shiga toxin-producing Escherichia coli and Stx bacteriophages in moisture enhanced beef
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
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
Alvarez-Ordonez, A.; Alvseike, Ole; Omer, M.K.; Heir, Even; Axelsson, Lars; Holck, Askild Lorentz; Prieto, M.; 2013: Heterogeneity in resistance to food-related stresses and biofilm formation ability among verocytotoxigenic Escherichia coli strains
Heir, Even; Holck, Askild Lorentz; Omer, Mohammed K.; Alvseike, Ole; Måge, Ingrid; Høy, Martin; Rode, Tone Mari; Sidhu, Maan Singh; Axelsson, Lars; 2013: Effects of post-processing treatments on sensory quality and Shiga toxigenic Escherichia coli reductions in dry-fermented sausages
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
Rode, Tone Mari; Holck, Askild Lorentz; Axelsson, Lars; Høy, Martin; Heir, Even; 2012: Shiga toxigenic Escherichia coli show strain dependent reductions under dry-fermented sausage production and post-processing conditions
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
Holck, Askild Lorentz; Axelsson, Lars; Rode, Tone Mari; Høy, Martin; Måge, Ingrid; Alvseike, Ole; L'Abée-Lund, Trine; Omer, MK; Granum, Per Einar; Heir, Even; 2011: Reduction of verotoxigenic Escherichia coli in production of fermented sausages
Møretrø, Trond; Høiby-Pettersen, Gunn Sigrid; Habimana, Olivier; Heir, Even; Langsrud, Solveig; 2011: Assessment of the antibacterial activity of a triclosan-containing cutting board
Rode, Tone Mari; Axelsson, Lars; Granum, Per Einar; Heir, Even; Holck, Askild Lorentz; L'Abée-Lund, Trine; 2011: High Stability of Stx2 Phage in Food and under Food-Processing Conditions
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
Heir, Even; Holck, Askild Lorentz; Omer, Mohammed K.; Alvseike, Ole; Høy, Martin; Måge, Ingrid; Axelsson, Lars; 2010: Reduction of verotoxigenic Escherichia coli by process and recipe optimisation in dry-fermented sausages
Holck, Askild Lorentz; Pedersen, Britt O.; Heir, Even; 2010: Detection of five novel GMO maize events by qualitative, multiplex PCR and fluorescence capillary gel electrophoresis
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
Omer, Mohamed; Alvseike, Ole; Holck, Askild Lorentz; Axelsson, Lars; Prieto, M.; Skjerve, E; Heir, Even; 2010: Application of high pressure processing to reduce verotoxigenic E-coli in two types of dry-fermented sausage
Holck, Askild Lorentz; Drømtorp, Signe; Heir, Even; 2009: Quantitative, multiplex ligation-dependent probe amplification for the determination of eight genetically modified maize events
Schirmer, Bjørn Christian; Heir, Even; Langsrud, Solveig; 2009: Characterization of the bacterial spoilage flora in marinated pork products
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
Heide, Bjarte Rambjør; Drømtorp, Signe; Rudi, Knut; Heir, Even; Holck, Askild Lorentz; 2008: Determination of eight genetically modified maize events by quantitative, multiplex PCR and fluorescence capillary gel electrophoresis
Heide, Bjarte Rambjør; Heir, Even; Holck, Askild Lorentz; 2008: Detection of eight GMO maize events by qualitative, multiplex PCR and fluorescence capillary gel electrophoresis
Scheie, Anne A.; Yazdankhah, Siamak Pour; Høiby, Ernst Arne; Lunestad, Bjørn-Tore; Lunestad, Bjørn Tore; Heir, Even; Fotland, TO; Naterstad, Kristine; Kruse, Hilde; 2007: Kan bruk av triklosanholdige produkter bidra til utvikling av resistente bakterier?
Berget, Ingunn; Heir, Even; Heir, Even; Petcovic, Jelena; Rudi, Knut; 2007: Discriminatory power, typability, and accuracy of single nucleotide extension microarrays
Yazdankhah, Siamak Pour; Scheie, Anne A.; Høiby, Ernst Arne; Lunestad, Bjørn Tore; Lunestad, Bjørn-Tore; Fotland, TO; Heir, Even; Fotland, Tor Øystein; Naterstad, Kristine; Kruse, Hilde; 2006: Triclosan and antimicrobial resistance in bacteria: An overview
Bjorland, Jostein; Steinum, Terje; Sunde, Marianne; Waage, Steinar; Sviland, Ståle; Oppegaard, Hanne; Heir, Even; Heir, Even; 2006: Deletion of pT181-like sequence in an smr-encoding mosaic plasmid harboured by a persistent bovine Staphylococcus warneri strain
Bjorland, Jostein; Steinum, Terje; Kvitle, Bjørg; Waage, Steinar; Sunde, Marianne; Heir, Even; 2005: Widespread Distribution of Disinfectant Resistance Genes among Staphylococci of Bovine and Caprine Origin in Norway
Langsrud, Solveig; Sidhu, Maan Singh; Heir, Even; Holck, Askild Lorentz; 2003: Bacterial disinfectant resistance—a challenge for the food industry
Lindstedt, Bjørn-Arne; Heir, Even; Gjernes, Elisabeth; Kapperud, Georg; 2003: DNA fingerprinting of Salmonella enterica subsp. enterica serovar typhimurium with emphasis on phage type DT104 based on variable number of tandem repeat loci
Nesse, Live Lingaas; Nordby, Kerstin; Heir, Even; Bergsjø, Bjarne A; Vardund, Traute; Nygaard, Halvor; Holstad, Gudmund; 2003: Molecular Analyses of Salmonellaenterica Isolates from Fish Feed Factories and Fish Feed Ingredients
Sidhu, Maan Singh; Heir, Even; Leegaard, Truls Michael; Wiger, Karianne; Holck, Askild Lorentz; 2002: Frequency of disinfectant resistance genes and genetic linkage with beta-lactamase transposon Tn552 among clinical staphylococci
Heir, Even; Langsrud, Solveig; Sidhu, Maan Singh; Steinbakk, Martin; 2001: Kan desinfeksjonsmidler bidra til bakteriell antibiotikaresistens?
Johnsen, Gro; Wasteson, Yngvild; Heir, Even; Berget, Odd Ivar; Herikstad, Hallgeir; 2001: Escherichia coli O157:H7 in Faeces from Cattle, Sheep and Pigs in the Southwest Part of Norway during 1998 and 1999
Sidhu, Maan Singh; Heir, Even; Sørum, Henning; Holck, Askild Lorentz; 2001: Genetic linkage between resistance to quaternary ammonium compounds and beta-lactam antibiotics in food-related Staphylococcus spp
Even har 13 andre publikasjoner i Cristin:
Heir, Even; Møretrø, Trond; Langsrud, Solveig; 2016: Veileder - Overvåking og prøvetaking for økt kontroll med Listeria ved produksjon av varmebehandlede, spiseklare kjøttprodukter
Langsrud, Solveig; Møretrø, Trond; Heir, Even; 2016: Veileder - Problemløsing og forebygging av Listeria i avdelinger som håndterer uemballerte, varmebehandlete kjøttprodukter
Hagtvedt, Therese; Heir, Even; 2016: Mattrygghet
Fagerlund, Annette; Heir, Even; 2016: Ny teknologi gir nye muligheter for å avsløre Listeria-bakterier i matindustrien
Heir, Even; Holck, Askild Lorentz; Langsrud, Solveig; 2015: Nye verktøy for kontroll med listeria i laks og lakseprodukter: Vurdering og uttesting av metoder for å redusere listeria-nivået i råvarer og produkter. Forprosjekt
Langsrud, Solveig; Heir, Even; 2015: Renhold for bekjempelse av Listeria
Heir, Even; Møretrø, Trond; 2015: Listeria i spekemat – en mattrygghetsutfordring?
Heir, Even; Langsrud, Solveig; 2014: Smittekilder for Listeria i lakse- og ørretnæringen
Heir, Even; Langsrud, Solveig; 2014: Tiltak for økt kontroll med listeria i laksenæringen. Sluttrapport + vedlegg
Heir, Even; 2014: Hjelper med problembakterier
Heir, Even; Langsrud, Solveig; Moen, Birgitte; Hansen, Anlaug Ådland; 2013: Produksjonshygiene og holdbarhet av pre-rigor laksefilet (forprosjekt). Nivå av bakterier og kartlegging av bakterieflora/mikrobiota på pre-rigor produsert islagret laksefilet
Heir, Even; Langsrud, Solveig; 2013: Smitteveier og smittekilder for Listeria i produksjonskjeden for sløyd og røkt laks
Krogdahl, Åshild; Alexander, Jan; Andersen, Lene Frost; Dybing, Erik; Farstad, Wenche Kristin; Heir, Even; Husøy, Trine; Høiby, Arne; Kapperud, Georg; Kruse, Hilde; Lassen, Jørgen Fr; Lie, Øyvind; Lundebye-Haldorsen, Anne Katrine; Lunestad, Bjørn Tore; Løvik, Martinus; Naterstad, Kristine; Narvhus, Judith; Nes, Ingolf F.; Nesbakken, Truls; Næss, Bjørn; Paulsen, Jan Erik; Rimstad, Espen; Robertson, Lucy; Sanner, Tore; Scheie, Anne A.; Skjerve, E; Skåre, Janneche Utne; Steffensen, Inger-Lise; Sundheim, Leif; Wasteson, Yngvild; 2005: Risk assessment on the use of triclosan in cosmetics. Prepared by the Scientific Committee in cooperation with the Panel on Biological Hazards and the Panel on Food Additives, Flavourings, Processing Aids, Materials in contact with Food and Cosmetics
