1. NIZO food research, P.O. Box 20, 6710 BA Ede, The Netherlands
2. Kluyver Centre for Genomics of Industrial Fermentation, Delft, The Netherlands
3. TI Food & Nutrition, P.O. Box 557, 6700 AN Wageningen, The Netherlands
4. Wageningen University, Microbiology Department, Dreijenplein 10, 6703 HB Wageningen, The Netherlands