1. State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, People's Republic of China
2. DOE Great Lakes Bioenergy Research Center (GLBRC), Biomass Conversion Research Laboratory (BCRL), Department of Chemical Engineering and Materials Science, Michigan State University, Lansing, MI 48910, USA
3. Department of Engineering Technology, Biotechnology Division, School of Technology, University of Houston, Houston, TX 77004, USA