1. Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
2. Department of Biological Science and Technology, Meiho Institute of Technology, Pingtung 912, Taiwan
3. Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
4. School of Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan
5. Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 404, Taiwan
6. Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan