1. Research and Development Division, Sapporo Holdings Ltd., 10 Okatome, Yaizu, Shizuoka 425-0013, Japan
2. Fundamental Laboratory, Pokka Sapporo Food & Beverage Ltd., 1189-4, Nippacho, Yokohama, Kanagawa 223-0057, Japan
3. Department of Food Science, Graduate School of Technology, Industry and Social Sciences, Tokushima University, 2-1, Minamijosanjima, Tokushima 770-8513, Japan