1. Department of Clinical Nutrition; Kawasaki University of Medical Welfare; Okayama Japan
2. Quality Assurance Department; Fuji Oil Holdings Inc.; Osaka Japan
3. Protein Research Group; Fuji Oil Holdings Inc.; Ibaraki Japan
4. Department of Microbiology; Kawasaki Medical School; Okayama Japan
5. Department of Applied Molecular Bioscience; Nagoya University; Aichi Japan