Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Dąbrowski W. , Iwański R. , Czeszejko K. , Mędrala D. 2001. THE INFLUENCE OF CULTURE CONDITIONS ON ADHESION OF LISTERIA MONOCYTOGENES TO HEXADECANE , EJPAU 4(2), #13.
Available Online: http://www.ejpau.media.pl/volume4/issue2/food/abs-13.html

ABSTRACT

Results of various culture conditions on adhesion of Listeria monocytogenes strains to hexadecane are presented. Listeria strains cultured in optimal conditions adhered to this hydrophobic carbohydrate to a small extent. It reveals that their cell walls have hydrophilic properties. Application of low-nutrient medium, incubation at low temperature, acidification of medium to pH 5 and addition of 8% of NaCl caused transformation of strains into hydrophobic. Growing in vacuum conditions produced the opposite effect – all strains were extremely hydrophilic. Changes of strain properties from hydrophilic into hydrophobic affected analysed strains to a different degree. One of tested strains continued to be hydrophilic regardless of culture conditions. The other – a standard strain isolated from patient – became hydrophobic most frequently.

Key words: hydrophobicity, Listeria monocytogenes.

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