1. Department of Applied Biological Chemistry, Graduate School of Agriculture; Kindai University; Nara 631-8505 Japan
2. Department of Nutritional Science, Faculty of Health and Welfare Science; Okayama Prefectural University; 111 Kuboki, Soja-shi Okayama 719-1197 Japan
3. WAKASA SEIKATSU; Sanko Bldg. 22, Naginataboko-cho, Shijo-Karasuma Shimogyo-ku Kyoto 600-8008 Japan