1. Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10−14, 55128 Mainz, Germany
2. Department of Chemical and Biological Engineering, Iowa State University, 617 Bissell Road, Ames, Iowa 50011-1098, United States
3. Center for Biorenewable Chemicals (CBiRC), Ames, Iowa, 50011-1098, United States