1. Institute of Technical Biocatalysis, Hamburg University of Technology, Denickestrasse 15, 21073 Hamburg, Germany
2. Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
3. Department of Engineering, Biological and Chemical Engineering Section, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus-C, Denmark