1. Department of Applied Chemistry, Faculty of Science and Engineering, and, Research Institute of Food Science, Kinki University, Kowakae, Higashiosaka, 577, Japan
2. Kinki University School of Medicine, Sayamacho, Minamikawachi, 588, Japan
3. Japan Sangaria Beverage Co., Ltd., Nakano, Higashisumiyoshi-ku, Osaka, 546, Japan