1. Department of Public Health and Applied Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
2. Department of Nutritional Science, Okayama Prefectural University, 111 Kuboki, Sohja, Okayama 719-1197, Japan
3. Food and Biotechnology Division, Tokushima Prefectural Industrial Technology Center, Saika-cho 11-2, Tokushima 770-8021, Japan