1. Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industry Co., Ltd., Kunming650231, P.R. China
2. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming650500, P.R. China
3. College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou450002, P.R. China