Kristian Fog Nielsen

Kristian Fog Nielsen

Associate Professor

Søltofts Plads, Building 221, Room 122

2800 Kgs. Lyngby


Phone: 45252602

Fax: 45884922

I’m working in the in the interface between microbiology and analytical chemistry, with an emphasis on microbial signalling (including toxins) via small molecules (< 3000 Da).


Currently I'm heading the Metabolic Signaling and Regulation group and the metabolomics platform both at Department of Systems Biology.

My main working areas are

  • Secondary metabolites from Aspergillus, Trichoderma, Fusarium, Penicillium, Bacillus, and marine bacteria
  • Safety aspects of industrial microorganisms with a focus of microbial and fungal (mycotoxins) - what can they produce
  • Trace analytical methods for mycotoxins and other microbial toxins in food, feed and other environmental sample types.
  • Intracellular metabolisme (MS based) in yeast, Bacillus, lactic acid bacteria, Aspergillus, actinomycetes, with a focus on phosphorylated metabolittes (ATP, sugar phosphates, NAD, FAD, NADPH, redow nucelotides, signalling nucelotides as c-di-GMP ........)
  • Massspectrometric identification methods for novel and known metabolites based on database searching
  • Tandem massespektrometric libraries


Read more on my homepage



Analytical chemistry: chromatography and mass spectrometry, sample prep

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  • Applied and Environmental Microbiology

    ISSNs: 0099-2240, 00992240

    ISSNs (Electronic): 1070-629

    American Society for Microbiology, United States

    ISI indexed (2013): yes, FI (2013): 2

    Central database


  • Journal of Agricultural and Food Chemistry

    ISSNs: 0021-8561, 00218561

    ISSNs (Electronic): 1520-5118

    American Chemical Society, United States

    ISI indexed (2013): yes, FI (2013): 2

    Central database


  • Dansk Kemi

    ISSNs: 0011-6335, 00116335

    TechMedia A/S, Denmark

    ISI indexed (2013): no

    Central database


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