added after sterilization of the base at 28 C. In this experiment two different types of G. xylinus cultures were performed: (a) G. xylinus was incubated under stationary conditions (Galaxyþ, RS Biotech, Ireland) in 24-well plates for 6 days (Corning Costar cell culture plate, SigmaeAldrich, Germany) in order to obtain pellicle discs of BC, (b) G. xylinus was incubated under agitated conditions at 180 rpm (ESe20/60, Biosan, Latvia) in 100 mL Erlenmeyer flasks (Sorbex, Poland) for 6 days to obtain BC in the form of beads.