1. Department of Microbiological Food Safety, Danish Institute for Food and Veterinary Research, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
2. Department of Food Science, The Royal Veterinary and Agricultural University, Rolighedsvej 30, KVL, DK-1870 Frederiksberg C, Denmark
3. Department of Meat and Food Safety, Chr. Hansen A/S, Bøge Allé 2, DK-2970 Hørsholm, Denmark