1. Laboratory of Aroma Chemistry, Department of Food and Cosmetic Science, Faculty of Bioindustry, Tokyo University of Agriculture, 196 Yasaka, Abashiri City, Hokkaido 099-2493, Japan
2. Healthcare Research and Development Division, Wakunaga Pharmaceutical Company Ltd., 1624 Shimokotachi, Kodacho, Akitakata, Hiroshima 739-1195, Japan