1. Department of Applied Chemistry, Muroran Institute of Technology, Mizumoto, Muroran 050-8585, Japan
2. Food Processing Division, National Research Institute of Fisheries Science, Fukuura, Kanazawa, Yokohama 236-8648, Japan
3. Research Institute of Biological Resources, National Institute of Advanced Industrial Science and Technology, Toyohira, Sapporo 062-8517, Japan
4. Muroran Marine Station, Field Science Centre for Northern Biosphere, Hokkaido University, Bokoi-minamimachi, Muroran 051-0003, Japan
5. Technical Research Laboratory, Kurabo Industries, Shimokida-cho, Neyagawa, Osaka 572-0823, Japan