1. Milk Science Research Inst; Megmilk Snow Brand Co., Ltd., 1-1-2, Minamidai Kawagoe Saitama 350-1165 Japan
2. Dept. of Food Science and Nutrition Faculty of Human Science and Design; Japan Women's Univ; 2-8-1, Mejirodai Bunkyo-ku Tokyo 112-8681 Japan