Affiliation: | National Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan,; Research Institute, Kagome Co. Ltd, 17 Nishitomiyama, Nasushiobara, Tochigi, 329-2762, Japan, and; Department of Agricultural and Biological Chemistry, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan |