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Physiology Activity of Barley Leaf Using Different Drying Methods

건조방법을 달리한 보리 잎의 생리활성

  • Park, Soo-Jin (Dept. of Food Science & Nutrition, Hoseo University) ;
  • Lee, Jea-Soon (Dept. of Food Science & Nutrition, Hoseo University) ;
  • Hoe, Young-Hoi (Institute of Korean Food Research and Development, National Academy of Agricultural Science) ;
  • Moon, Eun-Young (Dept. of Food Science & Nutrition, Hoseo University) ;
  • Kang, Myung-Hwa (Dept. of Food Science & Nutrition, Hoseo University)
  • 박수진 (호서대학교 식품영양학과) ;
  • 이재순 (호서대학교 식품영양학과) ;
  • 허영회 (농촌진흥청 국립농업과학원 한식세계화연구단) ;
  • 문은영 (호서대학교 식품영양학과) ;
  • 강명화 (호서대학교 식품영양학과)
  • Published : 2008.12.31

Abstract

This study was to analyze the physiology activity of barley leaf extract using different drying methods. Yield of RL (raw leaf) and barley leaves dried did not show significant difference by various drying methods. There was no significant difference in total phenolic content by dry method. However, total flavonoid content was high in HD (dried after heat treatments) barley leaf after RL. There was no significance in barley leaf dried by SD (dried in the shade), FD (vacuum freeze dried) and MW (dried by microwave) after the microwave. Superoxide dismutase-like activity was high over 90%: $95.6{\pm}0.3%$ in RL, $94.9{\pm}0.7%$ in HD barley leaf, $92.0{\pm}1.3%$ in SD barley leaf, $91.5{\pm}0.4%$ in FD barley leaf, and $92.5{\pm}0.2%$ in MW barley leaf using the microwave. Significantly higher antioxidant activity was shown as compared to the control group of sesamol ($88.426{\pm}0.802%$), tocopherol ($88.8{\pm}0.6%$), and BHT ($86.6{\pm}0.8%$). Also, except for RL and MW barley leaf, all showed over 80% peroxyl radical scavenging activity and over 90% inhibition rate of xanthine oxidase. The results of this study show that total phenolic content and total flavonoid content by dry method were dependent on the drying temperature with no impact on antioxidant activity.

다양한 방법으로 건조한 보리 잎의 생리활성을 분석한 결과, 보리 잎의 추출수율은 건조방법 간에 유의적인 차이를 보이지 않았다. 총 페놀함량은 건조방법별 함량에 유의적인 차이가 없었으나, 총 플라보노이드 함량은 열처리 후 건조한 보리 잎에서 생잎 다음으로 높게 나타났고, 음건, 진공 동결 건조, 전자레인지 후 건조한 보리 잎에서는 유의성을 보이지 않았다. SOD 유사활성은 생잎 $95.69{\pm}0.33%$, 열처리 후 건조한 보리 잎 $94.96{\pm}0.77%$, 음건 $92.04{\pm}1.35%$, 진공 동결건조 $91.53{\pm}0.40%$, 전자레인지 건조 $92.58{\pm}0.27%$로 90% 이상의 높은 활성을 보였으며, 대조군인 항산화제 sesamol $88.42{\pm}0.80%$, tocopherol $88.86{\pm}0.61%$, BHT $86.62{\pm}0.89%$에 비해 유의적으로 높은 활성을 나타냈다. 또한 생잎과 전자레인지 건조한 보리 잎을 제외하고 80% 이상의 peroxyl radical 소거능 및 90% 이상의 높은 xanthine oxidase 저해능을 보였다. 본 연구결과, 건조방법별 보리 잎의 총 페놀, 총 플라보노이드 함량은 건조방법에 따라 차이를 보였으나, 항산화 능력에는 크게 영향을 미치지 않는 것으로 사료된다.

Keywords

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