1. Graduate Institute of Food Science and Technology, Center for Food and Biomolecules, College of Bioresources and Agriculture, National Taiwan University, Taipei 106, Taiwan, Tsuzuki Institute for Traditional Medicine, College of Pharmacy, China Medical University, Taichung 404, Taiwan, Agricultural Biotechnology Research, Academia Sinica, Taipei 115, Taiwan, and National Research Institute of Chinese Medicine, Taipei 112, Taiwan, Republic of China