1. RIKILT—Institute of Food Safety, Wageningen UR, P.O. Box 230, 6700 AE Wageningen, The Netherlands, Laboratory of Physical Chemistry and Colloid Science, Wageningen University, P.O. Box 8038, 6700 EK Wageningen, The Netherlands, and University Medical Center−Groningen and University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands