1. Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
2. Laboratory of Biotechnology and Bioengineering, Hokkaido University of Education, Hakodate, Hokkaido 040-8567, Japan
3. Faculty of Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki 889-2192, Japan