1. Department of Biochemical Engineering, Graduate School of Science and Engineering; Yamagata University; 4-3-16 Jonan, Yonezawa, 992-8510 Japan
2. Osaka Municipal Technical Research Institute; 1-6-50 Morinomiya, joto-ku, Osaka, 536-8553 Japan
3. Graduate School of Environment and Information Sciences; Yokohama National University; 79-7 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501 Japan