Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Oslo, N-1432 Ås, Norway. hilde.vinje@nmbu.no.|Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Oslo, N-1432 Ås, Norway. kristian.liland@nmbu.no.|Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Oslo, N-1432 Ås, Norway. trygve.almoy@nmbu.no.|Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Oslo, N-1432 Ås, Norway. lars.snipen@nmbu.no.