1. Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical Engineering South China University of Technology 510641 Guangzhou P. R. China
2. Guangxi Key Laboratory of Chemistry and Engineering of Forest Products School of Chemistry and Chemical Engineering Guangxi Minzu University 530008 Nanning P. R. China
3. School of Food Science and Engineering South China University of Technology 510641 Guangzhou P. R. China
4. State Key Laboratory of Pulp and Paper Engineering South China University of Technology 510641 Guangzhou China
5. Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center 522000 Jieyang Guangdong China