1. Guangxi Key Laboratory of Green Processing of Sugar Resources
2. College of Biological and Chemical Engineering
3. Guangxi University of Science and Technology
4. Liuzhou 545006
5. P. R. China
6. Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction
7. Hong Kong University of Science and Technology (HKUST)
8. Kowloon
9. China