1. Hamburg School of Food Science, Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
2. National Reference Centre for Authentic Food, Max Rubner-Institut (MRI), Hermann-Weigmann-Straße 1, 24103 Kiel, Germany
3. Department of Safety and Quality of Milk and Fish Products, Max Rubner-Institut (MRI), Hermann-Weigmann-Straße 1, 24103 Kiel, Germany
4. National Reference Centre for Authentic Food, Max Rubner-Institut (MRI), E.-C.-Baumann-Straße 20, 95326 Kulmbach, Germany