TAI Zhi-Gang1, XIANG Cheng1, DAI Wei-Feng1, CAI Le2, YAN Yu-Xin3, LIN Lian-Bing1**
1. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China;
2. School of Chemical Science and Technology, Yunnan University, Kunming 650091, China;
3. College of Vocational and Technical Education, Yunnan Normal University, Kunming 650092, China