1. Research and Development Department, Asahi Sake Brewing Co., Ltd., Nagaoka, Japan
2. Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Japan
3. Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
4. National Research Institute of Brewing, Higashi-Hiroshima, Japan
5. Department of Biological Chemistry and Food Sciences, Iwate University, Morioka, Japan