• 제목/요약/키워드: Highland agriculture

검색결과 427건 처리시간 0.023초

지대 및 품종(재배종)별 콩사포닌그룹B 함량의 비교 (Comparison of Soyasaponin Group B Contents in Soybean Seed by Different Cultivars and Regional Background)

  • 남정환;정진철;윤영호;홍수영;김수정;진용익;지삼녀;김현삼;옥현충;노주원;판철호
    • 한국자원식물학회지
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    • 제25권4호
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    • pp.394-400
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    • 2012
  • Soyasaponin group B함량의 재배지대간 비교에서는 고랭지와 평난지에서 상이한 차이를 보였으며 품종 간에는 대부분 자엽색이 녹색이고 종피색이 검정색인 콩의 soyasaponin group B함량이 높은 것으로 나타났다. 이상의 결과를 종합해 볼 때 soyasaponin성분의 함량은 재배종의 종류 즉 유전적인 요인뿐만 아니라 고랭지와 평난지처럼 환경적 요인이라고 것을 확인할 수 있었으며 이는 식물이 환경적인 스트레스에 대한 생명유지 및 공격방어물질(Secondary matabolites, 이차대사산물)이 식물내 생합성과정 중에서 변이를 보이는 것으로 사료되어 진다.

Factors Influencing the Acrylamide Content of Fried Potato Products

  • Jin, Yong-Ik;Park, Kyeong-Hun;Chang, Dong-Chil;Cho, Ji-Hong;Cho, Kwang-Su;Im, Ju-Sung;Hong, Su-Young;Kim, Su-Jeong;Nam, Jung-Hwan;Sohn, Hwang-Bae;Yu, Hong-Seob;Chung, Ill-Min
    • 한국환경농학회지
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    • 제35권4호
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    • pp.247-255
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    • 2016
  • BACKGROUND: Acrylamide (CAS No. 79-06-1) is known to be a carcinogenic compound, and is classified as a Group 2A compound by the International Agency for Research on Cancer (IARC, 1994). Acrylamide can be generated during the browning process via the non-enzymatic Maillard reaction of carbohydrates such as reducing sugars and of amino acids such as asparagine, both of which occur at a temperature above $120^{\circ}C$. Potato tubers contain reducing sugars, and thus, this will affect the safety of processed potato products such as potato chips and French fries. In order to reduce the level of acrylamide in potato processed products, it is therefore necessary to understand factors that affect the reducing sugar content of potatoes, such as environmental factors and potato storage conditions, as well as understanding factors affecting acrylamide formation during potato processing itself. METHODS AND RESULTS: Potatoes were cultivated in eight regions of Korea; For each of these different environments, soil physico-chemical characteristics such as pH, electrical conductivity, total nitrogen, available phosphate, and exchangeable cation content were measured and correlations with potato reducing sugar content and potato chip acrylamide levels were examined. The reducing sugar content in potato during storage for three months was determined and acrylamide level in potato chip was analyzed after processing. The storage temperature levels were $4^{\circ}C$, $8^{\circ}C$, or $10^{\circ}C$, respectively. The acrylamide content of chips prepared from potatoes stored at $10^{\circ}C$ or $20^{\circ}C$ for one month was analyzed and the different frying times were 2, 3, 5, and 7 min. CONCLUSION: This study showed that monitoring and controlling the phosphate content within a potato field should be sufficient to avoid producing brown or black potato chips. For potatoes stored at low temperatures, a reconditioning period ($20^{\circ}C$ for 20 days) is required in order to reduce the levels of reducing sugars in the potato and subsequently reduce the acrylamide and improve chip coloration and appearance.

화분크기 및 관수간격이 도깨비고비의 생육에 미치는 영향 (Effects of Pot Size and Bottom Irrigation Interval on the Growth of Cyrtomium falcatum in Greenhouse Cultivation)

  • 이현숙;이희경;유동림;남춘우;류승열;서종택
    • 한국자원식물학회지
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    • 제19권4호
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    • pp.521-523
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    • 2006
  • 도깨비고비 분화생산시에는 화분이 클수록 초장이 크고 엽수도 많았으며 엽장과 엽폭도 크게 나타났다. 도깨비고비는 화분크기 및 저면 관수 주기 모두 통계적 유의성이 인정되어 직경 $7{\sim}10cm$크기의 화분은 5일에 한번씩 저면 관수하는 것이 좋은 것으로 나타났다.

A Comparative Study on the Functional Compounds of Color Potatoes

  • Jung Hwan Nam;Ki Deog Kim;Jong Taek Suh;Jong Nam Lee;Su Jeong Kim;Hwang Bae Sohn
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.47-47
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    • 2021
  • This study was carried out to obtain a basic information for the improvement of human health and the development of variety through analysis of organic compounds, contents of three CQA(3-caffeoylquinic acid, 4-caffeoylquinic acid and 5-caffeoylquinic acid) and five anthocyanin (petunidin-3-p-cumaroylrutinoside-5-glucoside, pelargonidin-3-p-cumaroylrutin-oside-5-glucoside, peonidin-3-p-cumaroylrutinoside-5-glucoside, pelargonidin-3-p-feruloyl-rutinoside-5-glucoside and peonidin-3-feruloylrutinoside-5-glucoside)to color potatoes is Hong-young(HY) and Ja-young(JY). The analytical results on organic compounds in color potatoes were shown as follow, The contents of CQA and Anthocyanin of JY variety were shown to be higher than HY, while CQA and Anthocyanin were appeared to be highest in peel of JY. Overall, JY had higher amount of physicochemical properties than HY. The results of this study reveal the quantitative analysis of functional compounds seperated from various kind of potatoes, which will enable the acquisition of new bioactive candidates and the establishment of new profit generation models for farmers.

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