1. Center
for Membrane and Film Technology, Department of Chemical Science and
Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
2. Department
of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan