1. School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan
030006, P. R. China
2. Yabao Pharmaceutical Group Co., Ltd., Yuncheng 044602, P. R. China
3. Key Laboratory of Biofuels, Qingdao
Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China