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I did my Ph.D. on virulence mechanisms of the enteropathogenic bacterium Yersinia pseudotuberculosis at Umeå University 1996.
Following my dissertation I performed  post-doctoral-studies at the Dept. of Molecular Microbiology, Washington University School of Medicine in Saint Louis, USA 1996-1999 working on the pathogenic parasite Toxoplasma gondii, studies that I continued at Umeå University where I became assistant professor in 1999. Since 2003, I have worked with the research programme ”Domestication of Microorganisms” at Uppsala BioCenter SLU with special focus on formulation and stabilisation of beneficial microorganisms. In late 2011 I joined the newly started Centre for Biological Control - CBC.

Education and Appointments

Associate Professor (Docent) in Microbiology, SLU, Uppsala 2007-07-01

Researcher, Dept. of Microbiology, SLU Uppsala, 2003-

Assistant Professor (Forskarassistent), Dept. of Molecular Biology, Umeå University, October 1999 to April 2003.

Postdoc, Dept. of Molecular Microbiology, Washington University School of Medicin, St Louis, USA, 1996-1999

Ph.D. Degree in Cell and Molecular Biology, Umeå University 1996-08-16.

M.Sc. Degree in Microbiology, Umeå University 1992.

Research profile

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Currently funded projects

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Publications in refereed journals since 2005

1. Bergenholtz Å, Wessman P, Wuttke A, and Håkansson S (2012) Case study on the osmo- and lyoprotective effects of the compatible solute betain on freeze-drying survival of a Lactobacillus strain. Cryobiology in press
2. Wessman P, Håkansson S, Leifer S, Rubino S (2012) Formulations for freeze-drying of bacteria and their influence on cell survival. JoVE in press
3. Wessman P, Mahlin D, Rubino S, Leifer K, Kessler V, Håkansson S (2011) Impact of matrix properties on survival of freeze-dried bacteria. J. Sci Food Agri. 91(14):2518-2528
4. Melin P, Schnürer J and Håkansson S (2011) Formulation and stabilization of the biocontrol yeast Pichia anomala. Antonie van Leeuwenhoek 99(1):107-112
5. Seisenbaeva GA, Ilina E, Håkansson S, and Kessler VG (2010) A new concept for titanium oxo-alkoxo-carboxylates' encapsulated biocompatible time temperature food indicators based on arising, not fading color J. Sol-Gel Sci. Tech. 55:1-8
6. Schoug Å, Mahlin D, Jonson M, and Håkansson S (2010) Differential effects of polymers PVP90 and Ficoll400 on storage stability and viability of Lactobacillus coryniformis Si3 freeze-dried in sucrose. J. Appl. Microbiol. 108:1032–1040
7. Pazik R, Tekoriute R, Håkansson S, Wiglusz R, Strek W, Seisenbaeva GA, Gun’ko YK, and Kessler VG (2009) Precursor and Solvent Effects in the Nonhydrolytic Synthesis of Complex Oxide Nanoparticles for Bioimaging Applications by the Ether Elimination (Bradley) Reaction. Chemistry, 28:6820-6826
8. Kessler VG, Seisenbaeva GA, Unell M, and Håkansson S. (2008) Chemically Triggered Biodelivery Using Metal–Organic Sol–Gel Synthesis. Angew Chem Int Ed 47: 8506-8509
9. Schoug Å, Fischer J, Heipieper HJ, Schnürer J, and Håkansson S. (2008) Impact of fermentation pH and temperature on freeze-drying survival and membrane lipid composition of Lactobacillus coryniformis Si3. J. Ind Microbiol Biotech. 35(3):175-81
10. Melin P, Sundh I, Håkansson S, and Schnürer J. (2007) Biological preservation of plant derived animal feed with antifungal microorganisms – Safety and formulation aspects. Biotech. Letters 29: 1147-1154
11. Melin P, Håkansson S, and Schnürer J. (2007) Optimisation and comparison of liquid and dry formulations of the biocontrol yeast Pichia anomala J121. Appl. Microbiol. Biotechnol. 73:1008–1016
12. Schoug Å, Olsson J, Carlfors J, Schnürer J, and Håkansson S. (2006) Freeze-drying of Lactobacillus coryniformis Si3 – effects of sucrose concentration, cell density, and freezing rate on cell survival and thermophysical properties. Cryobiol. 53(1):119-127
13. Kessler VG, Spijksma GI, Seisenbaeva GS, Håkansson S, Blank DHA, Bouwmeester HJM. (2006) New insight in the role of modifying ligands in the sol-gel processing of metal alkoxide precursors: A possibility to approach new classes of materials. J. Sol-Gel Sci. Techn.  40:163–179.
14. Melin P, Håkansson S, Eberhard T, and Schnürer J. (2006) Survival of the biocontrol yeast Pichia anomala after long-term storage in liquid formulations at different temperatures, assessed by flow cytometry. J. Appl. Microbiol. 100(2):264-271.
15. Bjerketorp J, Håkansson S, Belkin S, and Jansson JK. (2006) Advances in preservation methods: keeping biosensor microorganisms alive and active. Curr. Opin. Biotechnol. 17:1-7
    
    In total 29 publications in peer-reviewed journals and 15 book chapters and conference proceedings.

Supervision of PhD students and postdocs since 2005

1. Karin Önneby, PhD-student (assistant supervisor), SLU 2006-
2. Per Wessman, Postdoc, SLU 2008-2012
3. Joakim, Bjerketorp, Postdoc, SLU 2008-2012
4. Johanna Blomqvist, PhD-student (assistant supervisor), SLU 2007-2011
5. Åsa Schoug (Bergenholtz), PhD-student (head supervisor), SLU 2003-2009
6. Mirela Jonsson, Postdoc, SLU 2006-2010
7. Maria Unell, PhD-student (assistant supervisor), SLU 2003-2008
8. Jens levenfors, Postdoc, SLU 2004-2006
9. Elisabeth Fredlund, Postdoc, SLU 2005

Current teaching at the undergraduate level

Course: Microbiology and immune defense, A/B level, SLU, 10hp. Yearly since 2010.

Lectures on...

•  Microbial formulation and stabilization

• Microbial stress adaptation

• Parasitology

• Transgenic biotechnology

• Pathogens and zoonoses

• Antibiotics and disinfectants