1. Centre de Recherches sur les Macromolécules Végétales
(CERMAV, UPR-CNRS 5301), affiliated with the Université Joseph
Fourier (UJF) and member of the Institut de Chimie Moléculaire
de Grenoble (ICMG, FR-CNRS 2607), BP53, 38041 Grenoble Cedex 9, France
2. Graduate School of Chemical
Sciences and Engineering and Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan