1. Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan 807, Republic of China, Bioresource Collection and Research Center (BCRC), Food Industry Research and Development Institute (FIRDI), Hsinchu, Taiwan 300, Republic of China, and Instrument Center, Center Resources, Research & Development (CRRD), Kaohsiung Medical University, Kaohsiung 807, Taiwan 807, Republic of China