1. College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 P. R. China
2. Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory Jieyang 515200 P. R. China
3. Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 P. R. China