야생콩(Glycine soja Sieb. & Zucc.)의 종실성분 함량변이

Variation of Seed Component Contents in Wild Soybean(Glycine soja Sieb. & Zucc.)

  • 발행 : 2005.11.01

초록

본 실험은 콩의 단백질함량을 높이고 단백질 특성을 개선시키며, 고 기능성 보유 콩을 육성하기 위하여 수행되었다. 야생콩의 조단백, 조지방, 아미노산조성 및 isoflavone 함량을 분석 하였으며 결과를 요약하면 아래와 같다. 1. 야생콩 132점의 조단백질함량은 평균 $45.4\%$이며, 함량범위는 $37.4\~50.2\%$이었으며, 조지방함량은 평균 $9.3\%$으로 일반 재배종콩에 비하여 낮은 경향을 나타냈다. 2. 총 아미노산의 평균 함량은 $19,214{\mu}g/g$, 함량범위는 $16,098\~22,112{\mu}g/g$ 수준이었으며, 황함유 아미노산인 methionine은 평균 $252.7{\mu}g/g$, cysteine은 $102.9{\mu}g/g$의 함량을 나타냈다. 3. 전체 아미노산 함량 중 methionine과 cysteine은 각각 $1.3\%,\;0.5\%$의 비중을 차지하였으며, glutamic acid가 $16.1\%$로 가장 높았다. 4. 전체 아미노산 함량과 황함유 아미노산과의 상호관련성은 발견되지 않았으며, 충남 부여수집종인 IT182823 과 경기 포천 수집종인 IT184213이 높은 황함유 아미노산 함량을 나타냈다. 5. 총 아이소플라본의 평균 함량은 $1,105{\mu}g/g$이었으며, aglycone 중 genistein의 평균 함량이 $695.2{\mu}g/g$으로 가장 높았으며, 다음으로 daidgein, glycitein 순이었다. 6. Isoflavone과 genistein과의 상호관련성에 있어서 시험재료는 isoflavone 함량이 높으면 genistein 함량이 높은 경향이었다.

Studies were conducted to develop new breeding resources using wild soybean (Glycine soja Sieb. & Zucc.) species. In 132 wild soybeans, the average crude protein content was $45.4\%$, ranged from $37.4\%\;to\;50.2\%$ and average crude oil content was $9.3\%$ showing lower than cultivated soybean. The average total amino-acids content was $19,214\;{\mu}g/g$, containing $252\;{\mu}g/g$ of methionine and $103\;{\mu}g/g$ of cysteine, a sulfur containing amino-acid. In ratio of individual amino-acids, the glutamic acid, methionine and cystein content was $16.1\%,\;1.3\%,\;and\;0.5\%$, respectively. The correlation between total amino-acid and sulfur containing amino-acid was not significant. Total isoflavone concentration was, on average, $1,105\;{\mu}g/g$ in wild soybean germplasm. As a result of comparison with total isoflavone and genestein contents, significant positive correlations were observed between total isoflavone and genistein concentration.

키워드

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