1. Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
2. General Research Institute of Food Science and Technology, Nissin Foods Holdings Co., Ltd., 4-1, 7-chome, Nojihigashi, Kusatsu-shi, Shiga, 525-0058, Japan