1. Department of Food and Fermentation, Far East University, Gamgok, Eumseong-gun, Chungcheongbuk-do, 76-32, South Korea.
2. Department of Food Science and Technology and Carbohydrate Bioproduct Research Center, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 143-747, South Korea.
3. Cereal Products and Food Science Research Unit, National Center for Agricultural Utilization Research, ARS, USDA, 1815 N. University Street, Peoria, IL 61604, U.S.A.