Affiliation: | (1) Graduate School of Biotechnology, Korea University, Seoul, 136-701, Korea;(2) Department of Industrial Chemistry, Dankook University, Cheonan, 330-714, Korea;(3) Korea Research Institute of Bioscience and Biotechnology, Taejon, 305-333, Korea;(4) Department of Chemical Engineering, Korea University, Seoul, 136-701, Korea |