1. Laboratory of Food Quality Design and Development, Graduate School of Agriculture, Kyoto University, Uji, Kyoto 611-0011, Japan, Marine Biotechnology Institute, Kamaishi, Iwate 026-0001, Japan, Nagano Chusin Agricultural Experiment Station, Shiojiri, Nagano 399-6461, Japan, and National Agricultural Research Center for Hokkaido Region, Toyohira-ku, Sapporo, Hokkaido 062-8555, Japan