KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effects of the Drainage Methods on Phenolic Compounds and Radical Scavenging Activity of Foxtail Millet and Proso Millet

배수방법이 조와 기장의 페놀성분 및 라디칼 소거활성에 미치는 영향

  • Jung, Ki Yuol (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Ko, Jee Yeon (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Jae Saeng (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Jeong, Mi Sun (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Oh, In Seok (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration) ;
  • Woo, Koan Sik (Department of Functional Crop, National Institute of Crop Science, Rural Development Administration)
  • 정기열 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 고지연 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 이재생 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 정미선 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 오인석 (농촌진흥청 국립식량과학원 기능성작물부) ;
  • 우관식 (농촌진흥청 국립식량과학원 기능성작물부)
  • Received : 2014.04.11
  • Accepted : 2014.06.18
  • Published : 2014.09.30
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Abstract

This study investigated the changes of antioxidant compounds and antioxidant activity of foxtail millet (FM) and proso millet (PM) by drainage methods in poorly drained sloping paddy field. The experimented soils in this study were very poorly drained (VPDP) and imperfectly drained paddy soil (IDP). Two drainage methods namely under pipe drainage (UPD) and open ditch (ODD) were installed within 1-m position at the lower edge of the upper paddy fields. The soil moisture contents of UPD and ODD on VPDP were $18.52{\pm}4.58$ and $19.01{\pm}4.25%$, and IDP were $14.87{\pm}4.82$ and $18.64{\pm}3.85%$, respectively. Generally, crop yields, proximate and minerals composition of FM and PM showed significant differences by drainage methods. The total polyphenol, flavonoid and tannin contents, and radical scavenging activity of the ethanolic extracts of FM and PM showed significant differences by drainage methods. The total polyphenol content of FM and PM by drainage methods was 1.69~2.30 and 1.18~1.35 mg GAE/g, total flavonoid content was 0.31~0.76 and 0.27~0.41 mg CE/g, and total tannin content was 0.36~0.54 and 0.21~0.28 mg TAE/g, respectively. The DPPH radical scavenging activity of FM and PM was 39.53~59.81 and 27.91~40.25 mg TE/100 g, and ABTS radical scavenging activity was 113.59~152.10 and 61.38~79.19 mg TE/100 g, respectively. The antioxidant compounds and radical scavenging activity of FM and PM by drainage methods were frequently affected soil water.

배수가 매우불량 토양과 약간불량 토양에서 배수방법이 조와 기장의 항산화성분 및 활성에 미치는 영향을 분석하여 조와 기장의 재배방법과 성분 및 생리활성 연구에 기초자료로 활용하고자 본 연구를 수행한 결과 시험 토양의 수분함량은 중간부분(5~15 m)이 높은 함량을 보이는 것으로 나타났으며, 배수 매우불량 토양의 경우 암거배수 및 명거배수는 각각 $18.52{\pm}4.58$ 및 $19.01{\pm}4.25%$, 배수 약간불량 토양은 각각 $14.87{\pm}4.82$ 및 $18.64{\pm}3.85%$로 명거배수 처리 토양이 약간 높았다. 조와 기장의 수량은 각각 154.79~380.65 및 82.40~307.22 kg/10 a의 범위로 토양의 수분함량에 많은 영향을 받는 것으로 나타났으며, 배수방법에 따라 유의적인 차이를 보였다. 수확된 조의 수분, 조단백질, 조지방 및 조회분 함량은 각각 10.90~11.40, 3.40~9.64, 3.00~4.20 및 1.90~5.33 g/100 g, 기장은 각각 10.50~11.30, 1.93~8.51, 3.53~4.21 및 4.84~7.52 g/100 g, 인산, 칼륨 및 칼슘 함량은 조에서 각각 280.23~605.22, 387.53~561.29 및 134.26~242.42 mg/100 g, 기장은 각각 361.89~807.16, 284.62~369.94 및 113.18~215.52 mg/100 g의 범위로 나타나 토양조건, 배수방법 및 시료 채취 지점에 따라 큰 변이를 보이는 것으로 나타났다. 배수방법에 따른 조와 기장의 총 polyphenol 함량은 각각 1.69~2.30 및 1.18~1.35 mg GAE/g의 범위로 나타났으며, 총 flavonoid 함량은 각각 0.31~0.76 및 0.27~0.41 mg CE/g, 총 tannin 함량은 각각 0.36~0.54 및 0.21~0.28 mg TAE/g의 범위로 배수방법에 따라 유의적인 차이를 보였다. 조와 기장의 DPPH radical 소거활성은 각각 39.53~59.81 및 27.91~40.25 mg TE/100 g, ABTS radical 소거활성은 각각 113.59~152.10 및 61.38~79.19 mg TE/100 g의 범위로 처리 간에 유의적인 차이를 보였다. 전체적으로 조와 기장의 총 polyphenol, flavonoid, tannin 함량과 radical 소거활성은 토양의 수분함량에 많은 영향을 받는 것으로 나타났으며, 배수방법에 따라 유의적인 차이를 보였다. 이상의 결과 배수가 불량한 토양에서 조와 기장을 재배할 경우 토양의 조건에 알맞은 배수방법을 선택해야 할 것이고 재배지역, 작목, 품종, 재배환경 등 보다 많은 변수에 대한 다각적인 분석이 필요할 것으로 생각된다.

Keywords

References

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