1. Department
of Chemical Engineering, Pukyong National University, 365 Sinseon-ro, Nam-gu, Busan 608-739, South Korea
2. Sustainable Bioresource
Research Center, Korea Research Institute of Bioscience and Biotechnology
(KRIBB), 125 Gawhak-ro, Yuseong-gu, DaeJeon 305-806, South Korea