1. Department of Food Nutrition, Seowon University, Cheongju 361-742, Republic of Korea
2. Department of Biomedical Materials Engineering, Kangwon National University, Chuncheon 200-701, Republic of Korea
3. Department of Bioengineering and Technology, Kangwon National University, Chuncheon 200-701, Republic of Korea
4. Korea Institute of Ocean Science & Technology, Ansan P.O. Box 29, Seoul 426-744, Republic of Korea
5. Department of Teaics, Seowon University, Cheongju 361-742, Republic of Korea