1. Faculty of Home Economics, Laboratory of Food Technology, Kobe Women's University, Suma-Ku, Kobe City, Japan.
2. National Agricultural Research Center for Western Region (WeNARC), National Agricultural Research Organization (NARO), Fukuyama, Hiroshima, Japan. Corresponding author. E-mail: seguchi@suma.kobe-wu.ac.jp
3. National Institute of Crop Science, Kannondai, Tsukuba, Ibaraki, Japan.