1. Department of Chemistry, School of Science and Technology, Kwansei-Gakuin University, Sanda 669-1337, Japan (S.T., Y.M., H.S., Y.O.); National Food Research Institute, National Agriculture and Food Research Organization, 305-8642, Japan (A.I.); and Kurabo Industries Ltd., 14-5 Shimokida-cho, Neyagawa 572-0823, Japan (N.H.)