[1] Ctr. for Adv. Food Sci. and Technol., Graduate School of Biotechnology, Korea University, 5-1 Anam-dong Sungbuk-ku, Seoul 136-701, Korea, Republic of
[2] Central Research Center, Sam-A Pharmaceutical Co., Ltd., 265 Ohjun-dong, Uiwang-shi, Kyonggi-do, Korea, Republic of