1. Division of Applied Life Sciences,
Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo, Kyoto 606-8522,
Japan
2. Laboratory of Quality
Analysis and Assessment, Division of Agronomy and Horticultural Science,
Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan