1. Department of Agro-Industry, Naresuan University, 99 Moo 9, Tha Pho, Mueang, Phitsanulok 65000, Thailand
2. Institute of Food Sciences and Technology, National Taiwan University, Taipei 10617, Taiwan
3. Taiwan Tea Research and Extension Station, Taoyuan 326011, Taiwan
4. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City 40402, Taiwan
5. Department of Health and Nutrition Biotechnology, Asia University, Taichung City 41354, Taiwan