1. Jeonju Center, Korea Basic Science Institute (KBSI), 664-14 Dukjin-dong
1-ga, Dukjin-gu, Jeonju 561-756, Republic of Korea
2. Department of Chemical and Biological
Engineering, Hanbat National University, San 16-1, Dukmyoung dong, Yuseong-gu, Daejeon 305-719, Republic
of Korea