1. University of Aarhus, Faculty of Agricultural Sciences, Dept. of Genetics and Biotechnology, Forsøgsvej 1, 4200 Slagelse, Denmark.
2. University of Copenhagen, Faculty of Life Sciences, Dept. of Food Science, Quality & Technology, Rolighedsvej 30, 1958 Frederiksberg C, Denmark.
3. Corresponding author. Phone: +45 3533 3205. Fax: +45 3533 3245. E-mail: se@life.ku.dk