• Applied Biological Chemistry
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• 제42권4호
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• pp.283-287
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• 1999

태광콩, 검정콩1호, 신팔달콩2호, 황금콩, 단백콩, 단엽콩을 공시재료로 하고 Bacillus subtilis var. globigii를 메주제조용 균주로 사용하여 간장을 제조하고 그 성분 특성을 조사하였다. 원료 콩의 조단백질 함량은 단백콩이 47.5%로 가장 높았으며, 유리당 함량은 검정콩1호와 단백콩이 각각 15.87%, 13.33%로 가장 높았다. Bacillus subtilis var. globigii 종균을 접종하여 만든 메주로 제조한 간장의 총질소함량은 단백콩으로 제조한 간장에서 1.18%로 가장 높았으며, 간장의 유리당과 유기산 함량은 콩 품종간에 큰 차이를 보이지 않았으며 succinic acid가 주된 유기산임을 보여주었다. 단백콩 간장의 총 유리아미노산과 glutamic acid 함량도 각각 3365 mg%와 737.44 mg%로 가장 높았다. 원료콩의 단백질 함량이 가장 높은 단백콩이 간장의 총 유리아미노산, glutamic acid 함량 및 총 아미노산에 대한 glutamic acid의 비율이 가장 높아서 간장용 콩 품종으로 가장 적합한 것으로 나타났다.

• Journal of Crop Science and Biotechnology
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• 제11권1호
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• pp.57-62
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• 2008

Isoflavone content in various parts of six soybean cultivars and soybean sprout during germination was analyzed by high performance liquid chromatography. The parts analyzed were seed coat, cotyledon, and axis for seeds and whole sprout, root, hypocotyl, and cotyledon for sprout. Two cultivars, Aga3 which is known to have the smallest seed size and the highest isoflavone content among the Korean soybean cultivars and Pungsannamulkong which is the most widely being used as soy-sprout, were selected for sampling from 1 to 10 days after germination. At the same weight, the order of isoflavone content increased from seed coat to cotyledon to axis. The highest total isoflavone(isoflavone$\times$dry weight) content was observed in the cotyledon and the lowest in the seed coat. The cotyledon of the Aga3 variety had the highest total isoflavone content and the lowest was measured in the Pungsannamulkong variety. The highest total isoflavone content, $10,788{\mu}g/g$, was observed in whole sprouts(cotyledon+hypocotyl+root) on day 7 for Aga3. After day 7, there was a decreasing trend in isoflavone content as the germination period increased. Total isoflavone content in the cotyledon of Aga3 significantly increased after seed germination, whereas the isoflavone content in the cotyledon of Pungsannamulkong decreased. However, total isoflavone content in the root of both varieties increased while isoflavone content in the hypocotyls decreased after seed germination.

• Applied Biological Chemistry
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• 제42권2호
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• pp.91-98
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• 1999

단엽콩, 단백콩, 광안콩, 푸른콩, 만리콩, 신팔달콩 2호, 진품콩, 황금콩 등 콩 8품종의 청국장 가공적성을 구명하기 위하여 원료 콩과 콩 품종별 제조 청국장의 이화학적 관능적 특성을 조사하였다 원료 콩의 이화학적 특성중 콩의 증자조건에 영향을 미치는 종피율과 수화팽윤력, 발효관여 균주인 Bacillus subtilis의 생육에 유리한 fructose, glucose, sucrose 등의 유리당 함량, 그리고 청국장 제품의 경도, 청국장 특유의 점질물 생성과 관련이 있는 ${\gamma}-glutamyltranspeptidase({\gamma}-GTP)$의 활성 및 청국장의 맛을 좌우하는 유리아미노산 아미노태 질소의 함량을 고려하였을 때 신팔달콩 2호와 단엽콩이 청국장 제조용 원료콩으로서 가장 적합한 것으로 나타났다.

• 한국작물학회지
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• 제46권4호
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• pp.284-288
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• 2001

Water deficit is a serious constraint to soybean [Glycine max L. (Merr.)] production in rainfed regions of Asia, Africa, and America. This study was conducted to develop a simple and effective screening method for drought tolerance in soybean. Fifteen soybean cultivars, eight identified to be drought-tolerant and seven drought-sensitive in previous studies, were used for the evaluation of drought tolerance under the new screening conditions. The seedling screening method was consisted of a treatment in a PEG solution and drought treatment in parafilm-layered pots. 5-day-old seedlings were treated in a 18% PEG solution for 4 days and their wilting and hypocotyl browning were recorded. Three seedlings grown in a parafilm-layered pot containing peat moss were drought-stressed by withholding water from the third day after seedling emergence, and root and seedling growth were examined. Degree of drought tolerance were rated based on seedling vigor in the PEG solution and drought-stressed parafilm-layered pots, and also on the penetration ability of roots through parafilm layer. Most of seedlings of the drought-tolerant cultivars showed higher vigour and root penetration than those of the drought-sensitive cultivars under the new screening conditions. Our results indicate that the new method can be used as a simple and effective screening procedure for drought tolerance in soybean breeding programs.

• 한국작물학회지
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• 제55권1호
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• pp.14-18
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• 2010

본 연구는 생식생장기의 고온스트레스에 의한 콩의 생육과 수량에 미치는 영향을 구명하고자 대립종인 황금콩과 소립종인 풍산나물콩을 이용하여 수행하였다. 고온처리에 따라 두 품종 모두 초장은 증가하였으나 엽면적 및 건물중은 크게 감소하였다. 고온처리에 따라 개체당 협수는 감소하지 않았으나 잎수와 100립중이 감소하여 전체 수량이 황금콩과 풍산나물콩 모두 약 45% 감소하였다. 또한 잎, 줄기, 뿌리의 질소함량에서도 고온처리에 의한 감소를 보여 주고 있다.

• 한국작물학회지
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• 제48권1호
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• pp.25-30
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• 2003

This research was conducted to compare the dry matter production and the yield productivity among nine soybean cultivars by measuring the photosynthetic ability of the middle and lower leaves at the flowering and the seed development stages. The leaf greenness(SPAD value) were ranged as 32-42 at the flowering stage. Also, They were ranged as 25-40 and 38-51 at the fifth leaf and the seventh leaf, respectively. The photosynthetic ability at the flowering and the seed development stage showed significant differences among soybean cultivars, and the photosynthetic ability at the seed development stage showed higher difference among cultivars than the flowering stage. The variation of the photosynthetic ability at the flowering and the seed development stage also was significant among cultivars. The light saturation point at the flowering stage was about 1500 $\mu$mol $m^{-2}$ $s^{-1}$ PAR, and the seed development stage was about 1000 $\mu$mol $m^{-2}$ $s^{-1}$ PAR. The photosynthesis showed the high negative correlation with the leaf area and the positive correlation with the leaf area ratio. Also, photosynthesis at seed development stage showed positive correlation with grain yields but there was not significant between photosynthesis and yields at flowering stage..

• 농업과학연구
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• 제15권1호
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• pp.36-46
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• 1988

본(本) 실험(實驗)은 1/2,000a Wagner pot에 12개(個) 대두(大豆) 품종(品種)을 재배(栽培)하면서 관수(灌水)와 개화후(開花後) 30일간(日間)의 무관수처리(無灌水處理)에 따른 생육(生育) 및 수량(收量)을 품종별(品種別)로 비교(比較)하였으며 6개(個) 대두품종(大豆品種)을 1/2,000a Wagner pot에 재배(栽培)하여 개화기(開花期)에 대기습도(大氣濕度) 80, 70, 60, 50 및 40%에서의 광합성속도(光合成速度)의 품종간(品種間) 차이(差異)를 조사(調査)하였는데 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 모든 품종(品種)의 성숙일수(成熟日數)는 무관수처리(無灌水處理)에 의하여 단축(短縮)되었는데 그 정도(程度)는 품종(品種)에 따라서 상이(相異)하여 팔달(八達)콩, 단엽(短葉)콩 및 은대두(銀大豆)는 2일간(日間) 장백(長白)콩은 7일(日) 그리고 다마호마레는 8일간(日間)이나 단축(短縮)되었다. 2. 간장(桿長), 경직경(莖直徑), 주경절수(主莖節數), 분가수(分柯數) 및 분가절수(分柯節數)등은 모든 품종(品種)이 건조처리(乾燥處理)에 의하여 감소(減少)하였는데 특(特)히 분가수(分柯數)와 분가절수(分柯節數)는 무관수처리(無灌水處理)의 영향(影響)이 현저하였다. 3. 주당협수(株當莢數)와 완전협수(完全莢數)는 무관수처리(無灌水處理)에 의하여 현저히 감소(減少)하였는데 반(反)하여 불완전협수(不完全莢數)는 증가(增加)하는 경향(碩向)이었으며 관수처리(灌水處理)에 대(對)한 무관수처리(無灌水處理)의 주당협수(株當莢數)는 전체품종(全體品種) 평균(平均)이 58.0% 그리고 완전협수(完全莢數)는 46.6%이었다. 4. 주당입중(株當粒重)은 모든 품종(品種)이 무관수처리(無灌水處理)에 의하여 크게 감소(減少)하여 전체품종(全體品種) 평균(平均)이 관수처리(灌水處理)의 35.9%에 불과(不過)하였는데 팔달(八達)콩은 무관수처리(無灌水處理)의 영향(影響)이 가장 적었고 다마호마레와 장백(長白)콩은 무관수처리(無灌水處理)의 영향(影響)이 현저하였다. 5. 대기습도(大氣濕度)에 따른 광합성속도(光合成速度)는 습도(濕度) 및 품종간(品種間)에 차이(差異)가 나타났으며 품종별(品種別) 최고(最高) 광합성치(光合成値)에 대(對)한 대기습도(大氣濕度) 40%에서의 광합성속도(光合成速度)의 비율(比率)은 팔달(八達)콩이 97.2%, 단엽(短棄)콩이 96.4%이었고 백운(白雲)콩은 88.8%이었다. 6. 대기습도(大氣濕度) 40%에서의 광합성속도(光合成速度)와 증산(蒸散) 및 뿌리의 호흡속도간(呼吸速度間)에는 높은 정상관관계(正相關關係)가 인정(認定)되었다.

• Journal of Biosystems Engineering
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• 제40권4호
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• pp.335-344
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• 2015

Purpose: Soybean growth is adversely affected by environmental stresses such as drought, extreme temperatures, and nutrient deficiency. The objective of this study was to develop a method for rapid measurement of drought stress in soybean plants using a hyperspectral fluorescence imaging technique. Methods: Hyperspectral fluorescence images were obtained using UV-A light with 365 nm excitation. Two soybean cultivars under drought stress were analyzed. A partial least square regression (PLSR) model was used to predict drought stress in soybeans. Results: Partial least square (PLS) images were obtained for the two soybean cultivars using the results of the developed model during the period of drought stress treatment. Analysis of the PLS images showed that the accuracy of drought stress discrimination in the two cultivars was 0.973 for an 8-day treatment group and 0.969 for a 6-day treatment group. Conclusions: These results validate the use of hyperspectral fluorescence images for assessing drought stress in soybeans.

• Mycobiology
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• 제39권4호
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• pp.290-298
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• 2011

The ability of benzothiadiazole (BTH) and/or humic acid (HA) used as seed soaking to induce systemic resistance against a pathogenic strain of Fusarium oxysporum was examined in four soybean cultivars under greenhouse conditions. Alone and in combination the inducers were able to protect soybean plants against damping-off and wilt diseases compared with check treatment. These results were confirmed under field conditions in two different locations (Minia and New Valley governorates). The tested treatments significantly reduced damping-off and wilt diseases and increased growth parameters, except the number of branches per plant and also increased seed yield. Application of BTH (0.25 g/L) + HA (4 g/L) was the most potent in this respect. Soybean seed soaking in BTH + HA produced the highest activities of the testes of oxidative enzymes followed by BTH in the four soybean cultivars. HA treatment resulted in the lowest increases of these oxidative enzymes. Similar results were obtained with total phenol but HA increased total phenol more than did BTH in all tested cultivars.

• Food Science and Biotechnology
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• 제15권1호
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• pp.91-95
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• 2006

Effects of cultivars, cooking, and processing on hemagglutinin activity were evaluated by observing macroscopic hemagglutination using serial twofold dilution of trypsinized human blood type-O or rabbit blood. Hemagglutinin activity was expressed as maximal geometric dilution fold. Agglutination of rabbit blood was more sensitive compared to human blood. Hemagglutinin activities of glyphosate-tolerant soybean, HS2906, and imported conventional soybeans were not statistically different, although significant differences were observed among conventional soybean cultivars cultivated in Korea (286 to 1535 HU/mg protein). Time required to reach fifty percent inhibition of hemagglutinin activity ($IT_{50}$) value decreased with increasing cooking temperature and pressure. Most effective conventional cooking method to inhibit hemagglutinin activity was pressure-cooking ($IT_{50}$: 1.36 min). Calculated activation energy based on reaction rate constant was 4.88 kcal. No hemagglutinin activities were detected in processed soybean products such as tofu, soybean paste, and soysauce.