1. Radboud UniversityInstitute for Molecules and Materials Heyendaalseweg 135 Nijmegen 6525 AJ The Netherlands
2. DSM Biotechnology CenterDSM Food Specialties, P.O. Box 1 Delft 2600 MA The Netherlands
3. Maastricht University, M4I Institute Universiteitssingel 50, 6229 ER Maastricht, The Netherlands & DSM, Resolve, Urmonderbaan 22 Geleen 6160 MD The Netherlands