Bjarke Bak Christensen

Search results

• 2021

  Modelling the biphasic growth of non-starter lactic acid bacteria on starter-lysate as a substrate

  Møller, C. O. D. A., Christensen, B. B. & Rattray, F. P., 2021, In: International Journal of Food Microbiology. 337, 12 p., 108937.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File

  • Cell Lysate 100%
  • Growth 100%
  • Starter Culture 33%
  • Growth Rate 22%
  • Lactococcus Lactis 22%
  63 Downloads (Pure)
• 2018

  Modelling the influence of metabolite diffusion on non-starter lactic acid bacteria growth in ripening Cheddar cheese

  Czárán, T., Rattray, F. P., Møller, C. O. D. A. & Christensen, B. B., 2018, In: International Dairy Journal. 80, p. 35-45

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File

  • Lactic Acid Bacteria 100%
  • Cheddar Cheese 85%
  • Cheese Ripening 28%
  • Nutrients 28%
  • Ripening 14%
  368 Downloads (Pure)
• 2016

  Enterococci as indicator of potential growth of Salmonella in fresh minced meat at retail

  Hansen, T. B., Nielsen, N. L., Christensen, B. B. & Aabo, S., 2016, In: Food Microbiology. 59, p. 92-96 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Salmonella 100%
  • Enterococcus 88%
  • Minced Meat 55%
  • Minced Pork 33%
  • Minced Beef 33%
• 2015

  Risk assessment of Salmonella in Danish meatballs produced in the catering sector

  Møller, C. O. D. A., Nauta, M., Schaffner, D. W., Dalgaard, P., Christensen, B. B. & Hansen, T. B., 2015, In: International Journal of Food Microbiology. 196, p. 109-125 17 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Salmonella 100%
  • Temperature 83%
  • Risk 66%
  • Heat Treatment 50%
  • Ovens 50%
• 2013

  Case-by-case risk assessment of broiler meat batches: An effective control strategy for Campylobacter

  Christensen, B. B., Nauta, M., Korsgaard, H., Sørensen, A. I. V., Rosenquist, H., Boysen, L., Perge, A. & Nørrung, B., 2013, In: Food Control. 31, 2, p. 485-490

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Meat 100%
  • Campylobacter 75%
  • Food Product 25%
  • Salmonella 12%
  • Food Legislation 12%

• Effect of natural microbiota on growth of Salmonella spp. in fresh pork – A predictive microbiology approach

  Møller, C., Ilg, Y., Aabo, S., Christensen, B. B., Dalgaard, P. & Hansen, T. B., 2013, In: Food Microbiology. 34, 2, p. 284-295

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Salmonella 100%
  • Growth 100%
  • Microflora 83%
  • Population Density 50%
  • Temperature 50%
• 2011

  Bacteriophage F336 Recognizes the Capsular Phosphoramidate Modification of Campylobacter jejuni NCTC11168

  Sørensen, M. C. H., van Alphen, L. B., Harboe, A., Li, J., Christensen, B. B., Szymanski, C. M. & Brøndsted, L., 2011, In: Journal of Bacteriology. 193, 23, p. 6742-6749

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Adsorption 100%
  • Bacterium 66%
  • Poultry 66%
  • Campylobacter Jejuni 66%
  • Polysaccharides 66%

• The Impact of Consumer Phase Models in Microbial Risk Analysis

  Nauta, M. & Christensen, B. B., 2011, In: Risk Analysis. 31, 2, p. 255-265

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Consumer 100%
  • Risk Assessment 44%
  • Food Handling 22%
  • Food Product 22%
  • Diseases 11%
• 2010

  Effect of Organic Acids and Marination Ingredients on the Survival of Campylobacter jejuni on Meat

  Birk, T., Grønlund, A. C. J., Christensen, B. B., Knochel, S., Lohse, K. & Rosenquist, H., 2010, In: Journal of Food Protection. 73, 2, p. 258-265

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Marinating 100%
  • Chicken Meat 80%
  • Broth 80%
  • Food Product 60%
  • Pomegranate 40%
• 2009

  A comparison of risk assessments on Campylobacter in broiler meat

  Nauta, M., Hill, A., Rosenquist, H., Brynestad, S., Fetsch, A., van der Logt, P., Fazil, A., Christensen, B. B., Katsma, E., Borck, B. & Havelaar, A., 2009, In: International Journal of Food Microbiology. 129, 2, p. 107-123

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Campylobacter 100%
  • Meat 75%
  • Food Preparation 25%
  • Meat Product 12%
  • Food Product 12%

• Chemical Decontamination of Campylobacter jejuni on Chicken Skin and Meat

  Riedel, C. T., Brøndsted, L., Rosenquist, H., Haxgart, S. N. & Christensen, B. B., Jun 2009, In: Journal of Food Protection. 72, 6, p. 1173-1180

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Reduction 100%
  • Salt 57%
  • Meat 57%
  • Sodium 42%
  • Campylobacter 28%

• Comparison of three Listeria monocytogenes strains in a guinea-pig model simulating food-borne exposure

  Roldgaard, B., Andersen, J. B., Hansen, T. B., Christensen, B. B. & Licht, T. R., 2009, In: F E M S Microbiology Letters. 291, 1, p. 88-94

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Food Product 100%
  • Animal 75%
  • Virulence 50%
  • Listeria monocytogenes 50%
  • Guinea Pig Model 50%

• Egenkontrol i catering

  Hansen, T. B., Christensen, B. B., Kristensen, N. H. & Nielsen, T., 2009, In: Scandinavian Food & Drink. 1, p. 15

  Research output: Contribution to journal › Journal article › Communication

• Nytænkning kan standse bakterieangreb

  Jørgensen, S. B. (ed.), Christensen, B. B. & Almdal, K., 2009, In: FoodDTU Midt i Ugen.

  Research output: Contribution to journal › Journal article › Communication
• 2008

  Processing plant persistent strains of Listeria monocytogenes appear to have a lower virulence potential than clinical strains in selected virulence models

  Jensen, A., Thomsen, L. E., Jørgensen, R. L., Larsen, M. H., Roldgaard, B., Christensen, B. B., Vogel, B. F., Gram, L. & Ingmer, H., 2008, In: International Journal of Food Microbiology. 123, 3, p. 254-261

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Colony-Forming Unit 100%
  • Random Amplified Polymorphic DNA 100%
  • Virulence 80%
  • Listeria monocytogenes 40%
  • Electric Potential 40%
• 2007

  Characterization of Campylobacter phages including analysis of host range by selected Campylobacter Penner serotypes

  Hansen, V., Rosenquist, H., Baggesen, D. L., Brown, S. & Christensen, B. B., 2007, In: BMC Microbiology. 7, p. 90

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File

  • Campylobacter 100%
  • Serotype 38%
  • Broiler 38%
  • Host Range 30%
  • Genome Size 23%
  354 Downloads (Pure)

• Oxygen restriction increases the infective potential of Listeria monocytogenes in vitro in Caco-2 cells and in vivo in guinea pigs

  Andersen, J. B., Roldgaard, B., Christensen, B. B. & Licht, T. R., 2007, In: BMC Microbiology. 7, p. 55

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File

  • Listeria 100%
  • Bacterium 80%
  • Cells 80%
  • Listeria monocytogenes 60%
  • Organisms 40%
  358 Downloads (Pure)

• Sequence characteristics required for cooperative binding and efficient in vivo titration of the replication initiator protein DnaA in E. coli

  Hansen, F. G., Christensen, B. B. & Atlung, T., 2007, In: Journal of Molecular Biology. 367, 4, p. 942-952

  Research output: Contribution to journal › Journal article › Research › peer-review

  • DnaA 100%
  • Promoter Region 23%
  • Cooperative Binding 17%
  • Defense Mechanism 17%
  • Plasmid 11%
• 2006

  A comparative study of two food model systems to test the survival of Campylobacter jejuni at -18 degrees C

  Birk, T., Rosenquist, H., Brondsted, L., Ingmer, H., Bysted, A. & Christensen, B. B., 2006, In: Journal of Food Protection. 69, 11, p. 2635-2639

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Juice 100%
  • Broth 66%
  • Campylobacter 44%
  • Model Food 22%
  • Reduction 22%

• Construction of a multiple fluorescence labeling system for use in co-invasion studies of Listeria monocytogenes

  Andersen, J. B., Roldgaard, B., Lindner, A. B., Christensen, B. B. & Licht, T. R., 2006, In: BMC Microbiology. 6, p. 86

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File

  • Listeria monocytogenes 100%
  300 Downloads (Pure)

• Insights into the quality of DnaA boxes and their cooperativity

  Hansen, F. G., Christensen, B. B., Nielsen, C. B. & Atlung, T., 2006, In: Journal of Molecular Biology. 355, 1, p. 85-95

  Research output: Contribution to journal › Journal article › Research › peer-review

  • DnaA 100%
  • Promoter Region 76%
  • Replication Initiator Protein DnaA 53%
  • Plasmid 30%
  • Position 30%

• Lawsonia intracellularis infection in the large intestines of pigs

  Jensen, T. K., Christensen, B. B. & Boye, M., 2006, In: Acta Pathologica Microbiologica et Immunologica Scandinavica. 114, 4, p. 255-264

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Pig 100%
  • Infection 50%
  • Enteropathy 50%
  • Colitis 50%
  • Colon 50%

• The effect of slaughter operations on the contamination of chicken carcasses with thermotolerant Campylobacter

  Rosenquist, H., Sommer, H. M., Nielsen, N. L. & Christensen, B. B., 2006, In: International Journal of Food Microbiology. 108, 2, p. 226-232

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Campylobacter 100%
  • Flocks 80%
  • Slaughter 50%
  • Chicken Carcasses 30%
  • Sampling 20%
• 2005

  A model of hygiene practices and consumption patterns in the consumer phase

  Christensen, B. B., Rosenquist, H., Sommer, H. M., Nielsen, N. L., Fagt, S., Andersen, N. L. & Nørrung, B., 2005, In: Risk Analysis. 25, 1, p. 49-60

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Food Product 100%
  • Food Preparation 50%
  • Prepared Food 25%
  • Food Pathogen 25%
  • Raw Food 25%
• 2004

  VTEC O157 subtypes associated with the most severe clinical symptoms in humans constitute a minor part of VTEC 0157 isolates from Danish Cattle

  Roldgaard, B. B., Scheutz, F., Boel, J., Aabo, S., Schultz, A. C., Cheasty, T., Nielsen, E. M., Olsen, K. E. P. & Christensen, B. B., 2004, In: International Journal of Medical Microbiology. 294, 4, p. 255-259

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Hemolytic-Uremic Syndrome 100%
  • Hemolytic Uremic Syndrome 100%
• 2003

  Evidence of increased spread and establishment of plasmid RP4 in the intestine under sub-inhibitory tetracycline concentrations

  Licht, T. R., Struve, C., Christensen, B. B., Poulsen, R. L., Molin, S. & Krogfelt, K. A., 2003, In: FEMS Microbiology Ecology. 44, 2, p. 217-223

  Research output: Contribution to journal › Journal article › Research › peer-review

• Quantitative risk assessment of human campylobacteriosis associated with thermophilic Campylobacter species in chickens

  Rosenquist, H., Nielsen, N. L., Sommer, H. M., Norrung, B. & Christensen, B. B., 2003, In: International Journal of Food Microbiology. 83, 1, p. 87-103

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Campylobacter 100%
  • Reduction 25%
  • Kitchen 25%
  • Food Preparation 12%
  • Food Handling 12%
• 2002

  Metabolic commensalism and competition in a two-species microbial consortium

  Christensen, B. B., Haagensen, J. A. J., Heydorn, A. & Molin, S., 2002, In: Applied and Environmental Microbiology. 68, 5, p. 2495-2502

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Acinetobacter 100%
  • Biofilm 91%
  • Organisms 50%
  • Chemostat 33%
  • Growth 25%

• Sub-inhibitory tetracycline concentrations are optimal for spread and establishment of plasmid RP4 in an intestinal ecosystem

  Licht, T. R., Struwe, C., Christensen, B. B., Poulsen, R. L., Molin, S. & Krogfelt, K. A., 2002, In: FEMS Microbiology Ecology. 44, p. 217-222

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2001

  gfp-based N-acyl homoserine-lactone sensor systems for detection of bacterial communication

  Andersen, J. B., Heydorn, A., Hentzer, M., Eberl, L., Geisenberger, O., Christensen, B. B., Molin, S. & Givskov, M. C., 2001, In: Applied and Environmental Microbiology. 67, 2, p. 575-585

  Research output: Contribution to journal › Journal article › Research › peer-review

  • N-Acyl Homoserine Lactone 100%
  • N Acylhomoserine Lactone 100%
  • Sensor 66%
  • Communication 50%
  • Interpersonal Communication 50%

• Kvantitativ risikovurdering af Campylobacter jejuni i kyllinger

  Rosenquist, H., Nielsen, N. L., Christensen, B. B. & Sommer, H. M., 2001, In: Zoonose-Nyt. p. 13-16

  Research output: Contribution to journal › Journal article › Research
• 2000

  Tolerance to sudden organic solvent shocks by soil bacteria and characterization of Pseudomonas putida strains isolated from toluene polluted sites

  Huertas, M., Duque, E., Molin, L., Rossello-Mora, R., Mosqueda, G., Goddy, P., Christensen, B. B., Molin, S. & Ramos, J. L., 2000, In: Environmental Science & Technology (Washington). 34, 16, p. 3395-3400

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1999

  Bacterial activity in microbial communities analyzed in situ by unstable variants of Green Fluorescent Protein fused to ribosomal promoters

  Sternberg, C., Christensen, B. B., Nielsen, A. T., Andersen, J. B., Givskov, M. C. & Molin, S., 1999, In: Applied and Environmental Microbiology. 65, p. 4108-4117

  Research output: Contribution to journal › Journal article › Research › peer-review

• DnaA Boxes are important elements in setting the initiation mass of Escherichia coli

  Christensen, B. B., Tove, A. & Hansen, F. G., 1999, In: Journal of Bacteriology. 181, 9, p. 2683-2688

  Research output: Contribution to journal › Journal article › Research › peer-review

• Kinetics of plasmid transfer in different flow systems including chemostats, biofilms and the mouse intestine

  Licht, T. R., Christensen, B. B., Krogfelt, K. A. & Molin, S., 1999, In: Microbiology (United Kingdom). 145, p. 2615-2622

  Research output: Contribution to journal › Journal article › Research › peer-review

• Monitoring the conjugal transfer of plasmid RP4 in activated sludge and in situ identification of transconjugants

  Geisenberger, O., Ammendola, A., Christensen, B. B., Molin, S., Schliefer, K. H. & Eberl, L., 1999, In: F E M S Microbiology Letters. 174, 1, p. 9-17

  Research output: Contribution to journal › Journal article › Research › peer-review

• Role of Rom protein in copy number control of plasmid pBR322 at different growth rates in Escherichia coli K-12

  Tove, A., Christensen, B. B. & Hansen, F. G., 1999, In: Plasmid. 41, 2, p. 110-119

  Research output: Contribution to journal › Journal article › Research › peer-review

  • PBR322 100%
  • Plasmid 90%
  • Nested Gene 40%
  • Growth 30%
  • Time 30%

• Use of molecular tools in physiological studies of microbial biofilms

  Christensen, B. B., Sternberg, C., Andersen, J. B., Palmer, R. J., Givskov, M. C. & Molin, S., 1999, In: Methods in Enzymology. p. 20-42

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1998

  Effect of bacterial distribution and activity on conjugal transfer on the phylloplane of the bush bean (Phaseolus vulgaris)

  Normander, B., Christensen, B. B., Molin, S. & Kroer, N., 1998, In: Applied and Environmental Microbiology. 64, 5, p. 1902-1909

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Bacteria 100%
  • Leaves 83%
  • Relative Humidity 66%
  • Common Bean 66%
  • Cells 66%

• Establishment of new genetic traits in a microbial biofilm community

  Christensen, B. B., Sternberg, C., Andersen, J. B., Eberl, L., Møller, S., Givskov, M. C. & Molin, S., 1998, In: Applied and Environmental Microbiology. 64, 6, p. 2247-2255

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Biofilm 100%
  • Cells 100%
  • Fluorescence 33%
  • Gene 33%
  • Degradation 16%

• In situ detection of gene transfer in a model biofilm engaged in degradation of benzyl alcohol

  Christensen, B. B., Sternberg, C., Andersen, J. B. & Molin, S., 1998, In: APMIS Supplementum. 106, Suppl.84, p. 25-28

  Research output: Contribution to journal › Journal article › Research › peer-review

• In situ gene expression in mixed-culture biofilms: Evidence of metabolic interactions between community members

  Møller, S., Sternberg, C., Andersen, J. B., Christensen, B. B., Ramos, J. L., Givskov, M. C. & Molin, S., 1998, In: Applied and Environmental Microbiology. 64, 2, p. 721-732

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Promoter Region 100%
  • Biofilm 62%
  • Gene Expression 37%
  • Nested Gene 25%
  • Acinetobacter 25%

• Interspecies bacterial conjugation by plasmids from marine environments visualized by gfp expression

  Dahlberg, C., Bergström, M., Andreasen, M., Christensen, B. B., Molin, S. & Hermansson, M., 1998, In: Molecular Biology and Evolution. 15, 4, p. 385-390

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1996

  Bacterial plasmid conjugation on semi-solid surfaces monitored with the green fluorescent protein (GFP) from Aequora victoria as a marker

  Christensen, B. B., Sternberg, C. & Molin, S., 1996, In: Gene. 173, p. 59-65

  Research output: Contribution to journal › Journal article › Research › peer-review
• 1991

  The initiator titration model: computer simulation of chromosome and minichromosome control

  Hansen, F. G., Christensen, B. B. & Atlung, T., 1991, In: Research in Microbiology. 142, p. 161-167

  Research output: Contribution to journal › Journal article › Research › peer-review