作者单位:Department of Forest Products and Technology (BK21 Program), Chonnam National University, Gwangju, 500-757, Republic of Korea[1]Department of Bioenergy Science and Technology, Chonnam National University, Gwangju, 500-757, Republic of Korea[2]Bio-energy Research Institute, Chonnam National University, Gwangju, 500-757, Republic of Korea[3]