KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Correlation of Quality Characteristics of Soybean Cultivars and Whole Soymilk Palatability

콩 품종별 품질특성과 전두유 식미의 상관관계

  • Lee, Ji Hae (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Yu Young (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Son, Yurim (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Yeum, Kyung-Jin (Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University) ;
  • Lee, Yoon-Mi (Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University) ;
  • Lee, Byong Won (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Woo, Koan Sik (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Hyun-Joo (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Han, Sangik (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Byoung Kyu (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
  • 이지혜 (국립식량과학원 중부작물부 수확후이용과) ;
  • 이유영 (국립식량과학원 중부작물부 수확후이용과) ;
  • 손유림 (국립식량과학원 중부작물부 수확후이용과) ;
  • 염경진 (건국대학교 의료생명대학 식품생명과학부) ;
  • 이윤미 (건국대학교 의료생명대학 식품생명과학부) ;
  • 이병원 (국립식량과학원 중부작물부 수확후이용과) ;
  • 우관식 (국립식량과학원 중부작물부 수확후이용과) ;
  • 김현주 (국립식량과학원 중부작물부 수확후이용과) ;
  • 한상익 (국립식량과학원 중부작물부 수확후이용과) ;
  • 이병규 (국립식량과학원 중부작물부 수확후이용과)
  • Received : 2018.05.14
  • Accepted : 2018.10.17
  • Published : 2018.12.31
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Abstract

The correlation between the nutritional composition of soybeans and whole soymilk palatability was investigated using nine soybean cultivars (Teagwangkong, Daewonkong, Saedanback, Jinpung, Daechan, Miso, Cheongmiin, Cheongja 3, and Socheongja). Physicochemical analysis of soybeans, showed that the protein and lipid contents were 37.7-46.0 and 15.2-20.9%, respectively. Unsaturated fatty acids were 81.1-84.8% of total fatty acids, of which linoleic acids was 49.7-56.8%. Total tocopherol was $243.5-361.3{\mu}g/g$ of extract, of which ${\gamma}$-tocopherol was $67.14-86.49{\mu}g/g$. Total isoflavone contents varied within cultivars from $495.4-1,443.8{\mu}g/g$ of extract. Daidzin and genistin were 252.1-556.0 and $241.8-730.7{\mu}g/g$, respectively, which were major isoflavones in soybeans. For the sensory evaluation, whole soymilk was made from nine soybean cultivars and 20 panels investigate its palatability. The Daechan cultivar had the highest (9.1), and Cheongmiin the lowest (5.6), overall palatability score. Interestingly, sensory results were strongly correlated with linoleic acid (0.746) and stearic acid (-0.716) content. In summary, the fatty acid composition of soybeans is the key factor in determining the palatability of whole soymilk. This study could be applied to determine the suitability of cultivars for soybean products, including whole soymilk.

국내산 콩 9 품종(태광콩, 대원콩, 새단백, 진풍, 대찬, 미소, 청미인, 청자3호, 소청자)의 조단백, 조지방, 회분, 토코페롤, 지방산, 이소플라본 함량을 분석하였다. 국내산 9품종의 콩 단백질 함량은 37.7~46.0%이었으며, 지질함량은 15.2~20.9%이었다. 총 토코페롤의 함량은 $243.5{\sim}361.3{\mu}g/g$으로, ${\gamma}$-토코페롤이 총 토코페롤의 67.14~86.49%을 차지하였다. 지방산 조성분석 결과에서는 리놀레산(C18:2)이 49.7~56.8%로 가장 높은 비율을 나타내었다. 이소플라본 분석에서는 다이드진이 $252.1{\sim}556.0{\mu}g/g$, 제니스틴이 $241.8{\sim}730.7{\mu}g/g$으로 분석되었다. 식미검정 결과에서는 대찬콩이 9.1로 가장 높은 기호도를 보였으며, 청미인이 7.4로 가장 낮은 기호도를 나타냈다. 상관성 분석결과 전두유의 기호도는 콩 품종의 지방산조성과 가장 높은 상관계수(correlation coefficient)를 나타냈으며, 리놀렌산 함량이 높을수록(0.746), 스테아르산 함량이 낮을수록(-0.716) 두유의 기호도가 증가하는 경향을 나타냈다. 이상의 연구결과는 전두유 제조에 있어 품종별 특성을 고려하여 적합 품종을 선택하는 기초 자료로 활용될 수 있을 것으로 생각된다.

Keywords

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