• 제목/요약/키워드: sprout rot

검색결과 36건 처리시간 0.024초

방사선(放射線)을 이용(利用)한 양파저장(貯藏)에 관(關)한 연구(硏究) (1) (Sudies on the Storage of Onions by Radiation (1))

  • 박노풍;최언호;변광의
    • 한국식품과학회지
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    • 제4권2호
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    • pp.84-89
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    • 1972
  • An experiment was carried out to investigate the optimum doses of gamma-irradiation for sprouting inhibition of onion bulbs with irradiation time and storage conditions. The results. obtained are as follows: 1) The irradiation doses of 5, 7 and 10 krad, respectively, at 11, 32 and 66 days after harvest were sufficient to inhibit subsequent sprout of onion bulbs obtained from Nampyeong district. When they were irradiated at 96 day after harvest, however, there was little sprout-inhibition by 15 krad. In case of onion bulbs obtained from Changnyeong district, sprout was inhibited by doses of 8 and 12 krad respectively, at 51 and 89 days after harvest. 2) Low-temperature storage after irradiation was not effective in sprout-inhibition of onion bulbs. Onion bulbs stored at low temperature of $5^{\circ}C$ rather showed higher sprouting rate as compared with that of room temperature. 3) Rot increased in irradiated lot and at room temperature, and spores of Aspergillus sp. were little germinated at a level of 100 krad. 4) The respiratory rate of irradiated onion bulbs was higher immediately after irradiation but lower one week after irradiation than control. Respiratory quotient of tissues seems to be little affected by gamma-irradiation.

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Soybean Seeds Damaged by Riptortus Clavatus (Thunberg) Reduce Seed Vigor and Quality of Bean Sprout Produce

  • Oh, Young-Jin;Cho, Sang-Kyun;Kim, Young-Jin;Kim, Kyong-Ho;Paik, Chae-Hoon;Kim, Tae-Soo;Kim, Jung-Gon;Cho, Youngkoo
    • 한국육종학회지
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    • 제42권5호
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    • pp.439-447
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    • 2010
  • Riptortus clavatus, one of the many insects in major crops, damages pods and seeds, which reduces seed vigor and viability in soybeans. This study was conducted to examine the effect of diversely damaged seeds by R. clavatus on seed germination and seedling emergence and to determine the association of damaged seed with quality and yield of soybean sprouts. All seeds damaged by R. clavatus significantly (P<0.05) reduced seed vigor as measured by the rates of seed germination, germination speed, and seedling emergence. Mean seed germination rate of non-damaged seeds in sprout-soybean varieties was 97.8%, whereas the rates of seeds damaged at different levels, 31-50% and 51-80%, were 23.0 and 5.4%, respectively. The rates of seedling rot and abnormal, incomplete germination significantly (P<0.05) increased as the amount of seeds damaged by R. clavatus increased to 5, 10 and 15% against the total seeds for sprout production. Yield of soybean sprouts from seeds damaged at different levels decreased up to 13% as compared to that in normal seeds. In customer preferences on soybean sprout produce, 84% of customers participated in survey preferred to purchase sprouts from seeds with 5% of damaged seeds, but sprouts produced from seeds with 15% of damaged seeds were intended to purchase only by 22% of the customers. Areas of the seed damaged by R. clavatus were readily infected by pathogens as the seed germinated, resulted in deteriorated quality and reduced yield of sprout produce.

환경요인이 콩나물 무름병 발생에 미치는 영향 (Effects of environmental conditions on bacterial soft rot in soybean sprout)

  • 박종철;김경호;송완엽;김형무
    • 한국생물환경조절학회:학술대회논문집
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    • 한국생물환경조절학회 1997년도 봄 심포지움 및 학술논문발표요지
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    • pp.65-68
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    • 1997
  • 콩나물은 고려시대 이전부터 전해 내려온 우리 나라 전통 식품이며, 비타민의 함유량이 많은 기호성 식품으로 평가되어 최근 그 소비가 증가하는 추세를 보이고 있다. 이에 따른 소비의 급증으로 인하여 콩나물의 재배가 기업화하는 경향을 보이고 있으며, 한편 이와 함께 콩나물 재배시 부패병의 발생도 심각한 문제로 대두되고 있다. (중략)

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Developing Polyclonal Antibody-based Indirect-ELISA to Detect Anthracnose Inocula Prior to Soybean Sprout Rot

  • Park, Soo-Bong;Lim, Young-Ji;Lee, Jung-Han;Han, Ki-Soo;Lee, Sun-Cheol;Shim, Chang-Ki;Kang, Jin-Ho;Bae, Dong-Won;Kim, Dong-Kil;Kim, Hee-Kyu
    • The Plant Pathology Journal
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    • 제20권4호
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    • pp.252-257
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    • 2004
  • We developed a polyclonal antibody based-ELISA system to monitor inocula accurately and rapidly before onset of anthracnose on soybean sprouts. Titer of mouse antisera against conidia of Colletotrichum gloeosporioides, determined by indirect ELISA, was high enough to be detectable up to ${\times}$25,600 dilutions. Both PAb1 and PAb2 had the highest level of reactivity to Colletotrichum gloeosporioides. Absorbance readings exceeded 0.15. Sensitivity of PAb to C. gloeosporioides was precise enough to detect spore concentration as low as 500 conidia/well by indirect ELISA. Both antibodies are very sensitive and highly specific to the target pathogen Colletotrichum gloeosporioides, apparently discriminating other unrelated pathogen, or epiphytes. This kit fulfills the requirements far detecting inocula before infection and onset of anthracnose. Our ELISA system should also be feasible to detect C. acutatum (Mungbean sprouts rot) and G. cingulata (C. gleosporioides), (apple, pepper). It was remarkable that absorbance value was not reduced even after 4 consecutive washings (Fig.4), suggesting that antigenic determinants are on the surface of conidia. Antigenic determinant was characterized by heating and enzyme treatment: Both PAb1 and PAb2 bind to protein epitope that does not contain residue of amino acid, arginine, and Iysine, even though more work needs to be done.

열처리에 의한 콩나물 탄저병의 방제 (Establishment of Technology for Preventing the Soybean Sprout Colletotrichum gloeosporioides Rot)

  • 이정한;한기수;김태형;배동원;김동길;강진호;김희규
    • 식물병연구
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    • 제13권2호
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    • pp.110-114
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    • 2007
  • 콩나물 탄저병균 포자에 대한 열처리효과를 조사한 결과 $65^{\circ}C$에 30분까지 건열처리 하였을 때는 균의 사멸효과가 50% 정도에 불과하여, 건열처리는 나물콩 살균에 활용할 수 없었다. 병원균은 $55^{\circ}C$에서 20분 이상, 또는 $60^{\circ}C$에서 5분간 습열처리하면 완전히 사멸하였고, 부생성 세균 사멸효과도 높은 것으로 나타났다. $55^{\circ}C$에서 5분간 습열처리 조건하에서는, 발아장애 및 하배축 기형은 발생하지 않았으나, 20%의 탄저병균 분생포자가 생존하였기 때문에 실용적가치가 인정되지 않았다. 따라서 종자발아 및 하배축 기형이 발생하지 않는 최적 열처리 조건인 $60^{\circ}C$에서 5분간 습열처리를 실제 콩나물 재배 공정모델에 적용한 결과 탄저병 발생이 완전히 방제되어, 품질이 우수한 콩나물을 생산하게 되었다 따라서 이는 확립된 부패방지기술로서 적용이 가능하다고 판단되었다.

청정 땅콩나물 생산을 위한 종자처리기술 확립 (Establishment of Seed Treatment for Healthy Production of Peanut Sprout)

  • 박은지;이규빈;허유;손병구;최영환;이용재;박영훈;서정민;강점순
    • 한국환경과학회지
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    • 제24권6호
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    • pp.755-762
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    • 2015
  • The present study was conducted to develop seed treatment for the production of healthy and clean peanut sprout. Dry heat treatment of peanut seeds reduced the incidence of the rot. The seed treatment condition at $52^{\circ}C$ for 10 h. was the most efficient without inhibiting seed viability significantly. Seeds were dark cultured at $27^{\circ}C$ for up to 9 days. The treatment of Indole-B and gibberellic acid influenced germination, T50, fresh, dry weight, hypocotyl length, hypocotyl length diameter, root length, number of lateral root and epicotyl of peanut sprout. There were no differences in the germinability of peanut seeds between gibberellic acid treatment methods but higher fresh weight was observed in the GA3 solution spray after 2 hour water soaking. The general growth and lateral root development of peanut sprouts were suppressed by Indole-B which is used for inhibiting root formation and promoting hypocotyls. The treatment of gibberellic acid promoted hypocotyl elongation, but it did not influence on the growth of hypocotyls and root system.

열처리 대두로 재배한 콩나물 특성 (Quality Characteristics of Soybean Sprouts from Heat-Treated Soybean)

  • 윤혜현;신민자;김동만
    • 한국식품영양과학회지
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    • 제31권6호
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    • pp.994-998
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    • 2002
  • 콩 종자에 가해진 열충격이 콩나물의 품질에 어떠한 영향을 미치는지 살펴보기 위하여 콩에 다양한 열처리를 한 후 콩나물을 재배하면서 콩나물의 생장특성과 부패 및 관능적 특성을 조사하였다. 콩나물의 중량, 배축과 자엽의 길이와 두께를 재배기간동안 측정한 결과 4$0^{\circ}C$에서 60분과 120분 동안 열처리한 시료의 생장이 대조군보다 높거나 비슷한 생장을 하였다. 부패율은 열처리한 시료들이 대조군보다 높은 값을 나타내었는데, 예외적으로 4$0^{\circ}C$/60분 시료는 낮은 값을 나타내었고, 총균수의 결과에서도 4$0^{\circ}C$에서 60분 동안 열처리한 시료는 대조군보다 약간 낮은 미생물 수를 나타내었다. 콩나물 자엽의 색은 열처리함에 따라 밝아져서 대조군이 가장 높은 황색도를 나타내었다. 비타민 C함량도 열처리에 의해 모두 증가하였다. 관능검사 결과 열처리에 의해 비린 냄새와 쓴맛이 약해지고 고소한 맛이 증가하는 것을 확인하였고, 4$0^{\circ}C$/60분 처리한 시료가 외관과 전체적인 수용도에서 가장 좋은 평가를 받아 열처리하지 않은 대조군에 비해 유의적인 차이를 나타내었다.

내병.내도복 다수성 나물콩 신품종 "원광" (A New Soybean Cultivar, "Wonkwang" with Sprout, High Yielding, Disease and Lodging Resistance)

  • 오영진;조상균;김경호;김영진;김태수;김정곤;윤홍태;문중경;백인열;한원영;김현태;고종민;김용덕;김동관
    • 한국육종학회지
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    • 제41권2호
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    • pp.158-162
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    • 2009
  • "원광"은 농촌진흥청 국립식량과학원에서 양질 다수성을 목표로 2007년에 육성한 나물콩 품종으로 주요특성을 요약하면 다음과 같다. 1. "원광"의 신육형은 유한형으로 꽂색은 자색, 엽형은 피침형이며, 모용색은 회색이고, 종피색은 황색이며, 성숙기 꼬투리색 및 배꼽색은 담갈색으로 입형은 구형이다. 2. 성숙기는 10월 12일로 표준품종인 풍산나물콩에 비해 3일 늦은 중만생종이며, 100립중은 10.9 g으로 소립으로 도복에 강하고, 괴저바이러스병, 세균성불마름병, 검은뿌리썩음병에 강한 나물콩 품종이다. 3. "원광"은 풍산나물콩에 비해 종실 조단백질 함량은 비슷하나 콩나물 기능성분인 아이소플라본 함량이 높은 품종이다. 4. "원광"은 콩나물 재배시 경실종자가 없고, 배축신장성이 우수하여 콩나물 수율이 655%로 풍산나물콩에 비해 다소 높은 고수율 나물콩 품종이다. 5. "원광"의 ha당 수량성은 3.05톤으로 표준품종인 풍산나물콩 대비 8% 높은 다수성 나물콩 품종이다