1. Bioforsk Norwegian Institute for Agricultural and Environmental Research; Reddalsveien 215, NO-4886 Grimstad Norway
2. Department of Food Science; Aarhus University; Kirstinebjergvej 10 DK-5792 Aarslev Denmark
3. Department of Animal Science; Aarhus University; Blichers Alle 20, PO Box 50 DK-8830 Tjele Denmark
4. Research Institute of Organic Agriculture; Unit of Food Quality and Safety; Ackerstrasse, Postfach CH-5070 Frick Switzerland
5. Spectralys Innovation; BIOCITECH; 102 avenue Gaston Roussel 93230 ROMAINVILLE France
6. Department of Organic Agriculture; University of Kassel; Nordbahnhofstraße 1a D-37213 Witzenhausen Germany