Affiliation: | 1. San‐Ei Gen F.F.I., Inc., , Toyonaka, Osaka, 561‐8588 Japan;2. Niigata University Graduate School of Medical and Dental Sciences, , Chuo‐ku, Niigata, 951‐8514 Japan;3. Osaka University Graduate School of Dentistry, , Suita, Osaka, 565‐0871 Japan;4. National Food Research Institute, National Agriculture and Food Research Organization, , Tsukuba, Ibaraki, 305‐8642 Japan;5. Graduate School of Human Life Science, Osaka City University, , Sumiyoshi, Osaka, 558‐8585 Japan |