1. Food Ingredients & Technology Institute, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama-shi, Kanagawa 252-8583, Japan
2. Next Generation Science Institute, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama-shi, Kanagawa 252-8583, Japan
3. Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, 1-1 Mukaihata-cho, Fukakusa, Fushimi-ku, Kyoto 612-8555, Japan