1. Max Rubner-Institute, Federal Research Institute of Nutrition and Food; Department of Microbiology and Biotechnology; Kiel Germany
2. Max Rubner-Institute, Federal Research Institute of Nutrition and Food; Department of Safety and Quality of Milk and Fish Products; Kiel Germany
3. Max Rubner-Institute, Federal Research Institute of Nutrition and Food; Department of Physiology and Biochemistry of Nutrition; Karlsruhe Germany