1. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Key Lab for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, People's Republic of China
2. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Key Lab for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, P.R. China. Phone: 86-05922183751(0); Fax: 86-05922184822; E-mail: kelqb@xmu.edu.cn