1. Institute of Technical Biocatalysis Hamburg University of Technology (TUHH) 21073 Hamburg Germany
2. Department of Biology Institute of Material Sciences Nestlé Research Société des Produits Nestlé SA CH‐1000 Lausanne 26 Switzerland
3. Science & Technology Department Nestlé Development Center Singapore 29 Quality Road 618802 Singapore Singapore
4. Science & Technology Department Nestlé Product Technology Center Bakersfield CA ‐93313 USA