• Title/Summary/Keyword: 콩 품종

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Isoflavone Contents in Some Varieties of Soybean and on Processing Conditions (콩의 종류와 가공 조건에 따른 isoflavone의 함량 변화)

  • 문보경;전기숙;황인경
    • Korean journal of food and cookery science
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    • v.12 no.4
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    • pp.527-534
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    • 1996
  • enistein (G), and daidzein (D), the major isoflavones, were analyzed in 14 varieties of Korean soybean and various processed soybean products by using high performance liquid chromatography. Isoflavone contents (G+D) were greatly variable among varieties ranged from 308.2 $\mu\textrm{g}$/g to 1,134.2 $\mu\textrm{g}$/g and highest in Danyopkong and Jinpumkong. Among hypocotyl, cotyledon and hull of soybean the concentration of the isoflavone (G+D) in the hypocotyl was highest ranged from 2,971.7 $\mu\textrm{g}$/g to 5,704.9 $\mu\textrm{g}$/g. The distributions of genistein and daidzein were also different in hypocotyl, cotyledon and hull. Higher ratio of daidzein to genistein (D/G) was found in the hypocotyl (4-12) compared to cotyledon and hull (0.1-4). Isoflavone (G+D) contents of soymilks (Sinpaldal#2, Eunhakong) prepared at 16 hour hydration were decreased to 1.1-1.2 times compared with that at 8 hour hydration. Commercial soymilks contained much lower isoflavone (G+D) than laboratory soymilks. Soybean curd (Eunhakong) prepared with MgCl$_2$ showed higher isoflavone (G+D) contents than that with CaSO$_4$. But these values of two different soybean curds made at laboratory were similar to those of 3 commercial curds. The concentration of the isoflavones in soybean sprout separated with 3 parts revealed highest in the head and lowest in the stem. Compared with non-fermented soybean foods the fermented soybean produfts, Kochujang and soybean paste, Duen Jang, showed very low contents of isoflavone (G+D),2.8-3.0 $\mu\textrm{g}$/g, 35.9-63.6 $\mu\textrm{g}$/grespectively.

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Effects of High Temperature on Soybean Physiology, Protein and Oil Content, and Yield (콩에 있어서 온도 상승이 생물 계절, 수량구성요소, 단백질 및 지방함량 영향 평가)

  • Lee, Yun-Ho;Sang, Wan-Gyu;Cho, Jung-Il;Seo, Myung-Chul
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.64 no.4
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    • pp.395-405
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    • 2019
  • A recent assessment by the Intergovernmental Panel on Climate Change projected that the global average surface temperature will increase by a value 1.5℃ from 2030 to 2052. In this study, we used a temperature gradient chamber that mimicked field conditions to evaluate the effect of increased air temperature on phenology, yield components, protein content, and oil content, to assess soybean growth. In 2017 and 2018, 'Deawonkong', 'Pungsannamulkong', and 'Deapungkong' cultivars were grown in three temperature gradient chambers. Four temperature treatment groups were established by dividing the rows along temperature regimes: ambient temperature + 1℃ (aT+1), ambient temperature + 2℃ (aT+2), ambient temperature + 3℃ (aT+3), ambient temperature + 4℃ (aT+4). Year, cultivar, and temperature treatments significantly affected yield components and seed yield. In 2017, the flowering stage of 'Deawon' and 'Pungsannamul' cultivars in the aT+4 group was delayed compared to the flowering stage of those in the aT+1 group. In 2018, the flowering stage of 'Deawon' and 'Pungsannamul' was delayed at all temperature gradients, owing to high temperature stress, whereas 'Deapung' was regularly flowering in 2017 and 2018. The duration of the grain filling period was six days shorter in 2018 than in 2017 because of high temperature stress. The total number of pods per ㎡ for 'Deawon' and 'Pungsannamul' was 48.8 and 41.5% lower in 2018 than in 2017, respectively, whereas 'Deapung' increased by 6.3%. The 100-seed weight of 'Deawon' and 'Deapung' was 29.2 and 32.1% lower, respectively. However, 'Pungsannamul' decreased by 14.7%. The protein and oil content was lower during the grain filling period in 2018 than in the same period in 2017 because of high temperature stress. In contrast, the oil content in 'Deapung' was higher in 2018 than in 2017. Our results showed that increased temperature during the grain filling period was significantly and negatively correlated with pod number, 100-seed weight, protein content, and oil content.

신품종소개 - '백찰' 혼반용으로 우수한 백립계 찰밀

  • Gang, Cheon-Sik
    • 농업기술회보
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    • v.50 no.3
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    • pp.32-32
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    • 2013
  • 웰빙문화의 영향으로 하얀 쌀밥에 흑미, 찹쌀보리, 콩, 조, 밀 등 여러 잡곡을 섞어 먹는 혼식이 확산되고 있다. 국내에서 개발된 품종 중 '신미찰1호'는 전분 중 아밀로스 함량이 낮고 찰기가 있어 백미에 혼합하는 통밀 쌀로 이용한다. 하지만 겉이 빨개 일부 소비자들이 꺼려하면서 겉을 깎아내고 사용해 영양 면에서 좋지 않았다. 이에 따라 국립식량과학원에서는 취반용에 적합하면서 겉이 하얀 백립계 찰밀 '백찰'을 개발하였다.

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