1. Department of Food Science & Technology and Carbohydrate Bioproduct Research Center; Sejong University; 98 Gunja-dong, Gwangjin-gu Seoul 143-747 Republic of Korea
2. Department of Food and Nutrition; Duksung Women's University; Seoul 132-714 Republic of Korea
3. Laboratory of Developmental Genetics; College of Medicine, Inha University; Incheon 400-712 Republic of Korea