1. Wageningen University , Food Microbiology, P.O. Box 17, 6700 AA, Wageningen , The Netherlands
2. University of Antwerp , Department of Bioscience Engineering, Groenenborgerlaan 171, 2020 Antwerp , Belgium
3. Technical University of Denmark , National Food Institute, Kemitorvet 202, 1250 2800 Kgs. Lyngby , Denmark