1. Traditional Foods Research Center, Korea Food Research Institute, San 46-1, Baekhyun-dong, Bundang-gu, Sungnam-si, Kyunggi-do 463-746, Republic of Korea
2. College of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-gu, Seoul 136-701, Republic of Korea
3. Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada