1. Department of Food Science, Faculty of Agricultural Sciences, University of Aarhus, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark, Center for Biospectroscopy and Data Modelling, Matforsk AS, Norwegian Food Research Institute, Osloveien 1, NO-1430 Ås, Norway, and CIGENECenter for Integrative Genetics and Department of Mathematical Sciences and Technology (IMT), University of Life Sciences, 1432 Ås, Norway