1. Department of Forest Biomaterials; North Carolina State University; Raleigh North Carolina 27695-8005
2. Department of Biotechnology and Chemical Technology; School of Chemical Technology; Aalto University; FI-00076 Aalto Espoo Finland
3. Department of Forest Products Technology; School of Chemical Technology; Aalto University; FI-00076 Aalto Espoo Finland
4. Department of Chemistry; North Carolina State University; Campus box 8204 Raleigh North Carolina 27695-8204