Effect of $\gamma$-Irradiation of Volatile Organic Compounds of Houttuynia cordata Thunb.

방사선 조사에 의한 어성초의 휘발성 유기성분 변화

  • Ryu, Keun-Young (Department of Food and Nutrition, Chosun University) ;
  • Shim, Sung-Lye (Department of Food and Nutrition, Chosun University) ;
  • Jung, Min-Seok (Department of Food and Nutrition, Chosun University) ;
  • Jun, Sam-Nyeo (Department of Food and Nutrition, Chosun University) ;
  • Jo, Cheor-Un (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Song, Hyun-Pa (Department of Animal Science and Biotechnology, Chungnam National University) ;
  • Kim, Kyong-Su (Department of Food and Nutrition, Chosun University) ;
  • Kim, Youn-Soon (Department of Home Economics Education, Chosun University)
  • 류근영 (조선대학교 식품영양학과) ;
  • 심성례 (조선대학교 식품영양학과) ;
  • 정민석 (조선대학교 식품영양학과) ;
  • 전삼녀 (조선대학교 식품영양학과) ;
  • 조철훈 (충남대학교 동물자원생명공학과) ;
  • 송현파 (충남대학교 동물자원생명공학과) ;
  • 김경수 (조선대학교 식품영양학과) ;
  • 김연순 (조선대학교 가정교육과)
  • Published : 2008.06.30

Abstract

This study was performed to examine the effect of $\gamma$-irradiation on the volatile organic compounds in Houttuynia cordata Thunb.(H. cordata). 1be volatile compounds of non-irradiated and 10 kGy $\gamma$-irradiated H. cordata were isolated using SDE apparatus and analyzed by GC/MS. For each treatment the number of volatile compounds were detected at 83 and 85, respectively, 1be predominant functional groups of volatile organic compounds from H. cordata were identified as alcohols and ketones. H. cordata was mainly composed of hexahydrofarnesyl acetone (12.81 %), phytol, decanoic acid, dodecanoic acid, octadecanol, caryophyllene oxide, 2-undecanone and menthol. Houttuynum which is characteristic compound of H. cordata was found in all samples and there was no significant difference with irradiation doses. Consequently, $\gamma$-irradiation of H. cordata would be an effective process for sanitation and to increase extraction efficiency.

본 연구에서는 현재 우리나라에서 그 소비량이 증가하고 있고, 여러 가지 효능이 확인되고 있는 한약재 중의 하나인 어성초를 10 kGy로 조사하여 휘발성 유기성분의 변화를 비교하였다. n-Pentane과 diethylether 혼합용매를 추출용매로 사용하여 연속증류추출장치로 추출하고 이를 GC/MS로 사용하여 분석.확인하였다. 비 조사 시료와 10 kGy의 선량으로 방사선 조사한 시료에서 확인된 휘발성 유기성분은 각각 83종과 85종이 확인되었다. 전체적인 관능기별 함량으로는 alcohol류와 ketone류가 두드러지는 경향을 보여 어성초의 주요휘발성 유기화합물에 크게 영향을 미치는 것으로 판단되었다. 어성초의 대표적인 휘발성 유기화합물로는 hexahydrofarnesyl acetone, phytol, decanoic acid, dodecanoic acid, octadecanol, caryophyllene oxide, 2-undecanone 및 menthol 등이었다. 특히 houttuynum은 그 함량이 다른 주요 화합물보다 상대적으로 낮게 확인되었으나, 어성초의 특징적인 비린내 성분을 부여하는 화합물로 확인되었다. 또한, 어성초의 주요 생리활성 성분이며, 항균, 항진균, 항생물, 항염증 및 항종양 등의 여러 가지 효능이 입증되고 있는 terpene류의 상대적인 함량도 다량 확인되었다. 조사에 따른 함량은 비 조사시료와 큰 차이를 보이지 않았다. 따라서 어성초의 위생화 처리 효과를 고려할 때 방사선 조사를 이용하는 방법이 적절할 것으로 사료되며, 한약재의 위생화 방안과 현재 활발히 진행되고 있는 방사선 조사식품에 대한 여러 연구들에 대한 기초 자료로 활용될 수 있을 것으로 판단된다.

Keywords

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