1. College of Biology and Food Engineering, Huaihua University, Huaihua, China.
2. Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, China.
3. Hunan Yao Tea Engineering Research Center, Xupu, China.
4. School of Basic Medical Sciences, Hunan University of Medicine, Huaihua, China.