1. Ministry of Forestry Bioethanol Research Center, Changsha 410004, China
2. Hunan Engineering Research Center for Woody Biomass Conversion, Changsha 410004, China
3. Bioenvironmental Research Institute, Central South University of Forestry and Technology, Changsha 410004, China
4. Transpoints Inc., P.O. Box 141742, Gainesville, FL 32614, USA
5. Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China