1. Research and Development, Matsutani Chemical Industry Company, Ltd., 5-3 Kita-Itami, Itami, Hyogo 664-8508, Japan
2. Department of Nutrition, University of Nagasaki, 1-1-1 Manabino,
Nagayo-cho, Nishisonogi-gun, Nagasaki 851-2195, Japan
3. Center for Industry, University and Government Cooperation, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan