1. Graduate School of Environmental and Human Science and Faculty of Pharmacy, Meijo University, Tempaku, Nagoya 468-8503, Japan, Kanagawa Prefectural Institute of Public Health, Shimomachiya, Chigasaki, Kanagawa 253-0087, Japan, and Department of Food Technology, State University of Londrina, P.O. Box 6001, Zip Code 86051-990, Londrina, Paraná, Brazil