1. Department of Food and Human Health Sciences, Graduate School of Human Life Science, Osaka City University, Sumiyoshi, Osaka 558-8585, Japan, Department of Biological and Chemical Engineering, Faculty of Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan, Showagakuin Junior College, Higashisugano, Ichikawa, Chiba 272-0823, Japan, and Department of Chemistry and Materials Technology, Faculty of Engineering and Design, Kyoto Institute of Technology, Sakyo, Kyoto 606-0962, Japan