1 Lehrstuhl für Bioprozesstechnik, Technische Universität Dortmund, Dortmund, Germany.
2 Department of Technichal Chemistry, Process Engineering and Biotechnology, Institute of Molecular Biotechnology, Graz University of Technology, Graz, Austria.
4 Molecular Enzyme Technology and Biochemistry, Biofilm Centre, Centre for Water and Environmental Research, University of Duisburg-Essen, Essen, Germany.