1. School of Chemical Engineering, Xiangtan University, Xiangtan411105, P.R. China
2. Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing100093, P.R. China
3. Postdoctoral Station of Chemical Engineering and Technology, Xiangtan University, Xiangtan, 411105Hunan, P.R. China
4. Faculty of Agriculture and Food, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500Yunnan, China