1. Industrial Biotechnology, Dept. of Chemical and Biological EngineeringChalmers University of TechnologyGothenburgSE‐412 96 Sweden
2. Wallenberg Wood Science CenterChalmers University of TechnologyKemigården 4GothenburgSE‐412 96 Sweden
3. Division of GlycoscienceSchool of Biotechnology, Royal Institute of Technology (KTH)StockholmSE‐106 91 Sweden
4. Wallenberg Wood Science CenterRoyal Institute of Technology (KTH)Teknikringen 56‐58StockholmSE‐100 44 Sweden