Abstract
1 Department of Life Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa 761-0795, Japan
2 Research Center, Asahi Glass Co. Ltd, Yokohama, Kanagawa 221-8755, Japan
3 National Research Institute of Brewing, 3-7-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-0046, Japan
4 Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8526, Japan