1. National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
2. Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
3. Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China
4. Hunan Tea Group Co., Ltd., Changsha 410128, China