1. SINTEF Fisheries and Aquaculture, Brattørkaia 17B, N-7465, Trondheim, Norway, Department of Biotechnology, Norwegian University of Science and Technology, Sem Saelandsv. 6/8, N-7491, Trondheim, Norway, and Matforsk AS, Nofima Food, Osloveien 1, N-1430, Ås, Norway