1. School of Life Science and Biotechnology, Korea University, Seoul 136-701, Republic of Korea
2. Food Research Institute, AmorePacific R&D Center, Yongin-si, Gyeonggi-do 446-729, Republic of Korea
3. Sulloccha Research Institute, Jangwon Co., Ltd., Seogwipo-si, Jeju-do 699-924, Republic of Korea
4. Division of Magnetic Resonance, Korea Basic Science Institute, Cheongwon 363-883, Republic of Korea