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Effects of Antimicrobial and Cytotoxicity of Undaria pinnatifida Sporophyll Fractions

미역귀 분획물의 항균 · 암세포 성장저지 효과

  • Park, Soung-Young (Dept. of Food and Nutrition, Marine Biotechnology Center for Biofunctional Material Industries, Silla University) ;
  • Jung, Young-Hwa (Dept. of Food and Nutrition, Marine Biotechnology Center for Biofunctional Material Industries, Silla University) ;
  • Shin, Mi-Ok (Dept. of Food and Nutrition, Marine Biotechnology Center for Biofunctional Material Industries, Silla University) ;
  • Jung, Bok-Mi (Dept. of Food Science and Nutrition, Yosu National University) ;
  • Bae, Song-Ja (Dept. of Food and Nutrition, Marine Biotechnology Center for Biofunctional Material Industries, Silla University)
  • 박성영 (신라대학교 식품영양학과. 마린-바이오 산업화지원센터) ;
  • 정영화 (신라대학교 식품영양학과. 마린-바이오 산업화지원센터) ;
  • 신미옥 (신라대학교 식품영양학과. 마린-바이오 산업화지원센터) ;
  • 정복미 (여수대학교 식품영양학과) ;
  • 배송자 (신라대학교 식품영양학과. 마린-바이오 산업화지원센터)
  • Published : 2005.07.01

Abstract

In this study, we investigated antimicrobial and cytotoxicity effects of Undaria pinnatifida Sporophyll, which using methanol, dichloromethane and ethanol were extracted and fractionated into four different types: methanol (UPMM), hexane (UPMH), butanol (UPMB) and aqueous (UPMA). The antimicrobial activity was increased in proportion to its concentration by the paper disc method. Among the solvent fractions, UPMM and UPMB showed relatively strong antimicrobial activities in the order. Among various partition layers, the methanol partition layer (UPMM) was showed the strongest cytotoxic effects on all cancer cell lines. We also observed quinone reductase (QR) induced effects in all fraction layers of UP on HepG2 cells. The QR induced effects of UPMH on HepG2 cells at $320\mu g/mL$ concentration indicated 2.36 with a control value of 1.0.

본 연구에서는 미역귀를 추출, 각 용매 별로 분획 하여 항균효과와 암세포 성장억제 및 QR유도활성 효과 등의 생리활성을 연구하였다. 미역은 일반적으로 콜레스테를 배출 작용, 중금속(Cd) 및 방사능 물질(Sr)의 체내 흡수 억제, 배출 작용과 정장 작용이 있으므로 식이섬유 식품으로서 효과가 많다. 미역의 뿌리부분이며 식품개발품으로 소외되고 있는 미역귀를 이용하여 식중독 및 식품부패 원인균 등을 이용한 항균활성을 측정해 보았으며 특히 식중독원인균인 Staphylococus aureous에 시료의 UPMM층의 항균효과가 보였고 단백질 식품부패균인 Serratia marcescens에는 UPMB와 UPMM, UPMH 등에서 전반적으로 항균효과가 보였다. 또 4종의 인체 암 세포주 HeLa, HT-29, MCF-7 및 HepG2에 대한 암세포 성장억제 실험을 한 결과 사용한 4종의 암세포주에서 모두 정도의 차이는 있으나 시료첨가 농도에 의존적으로 성장 저지 효과가 나타났다. 특히 시료의 methanol 분획층인 UPMM에서 괄목할 만한 높은 효과를 나타내었으며 HeLa, HT-29 및 HepG2세포에서는 UPMM의 농도를 $500\mu g/mL$ 첨가 시 이미 97.71, 98.63 및 $90.32\%$의 높은 암세포 성장 억제 효과를 나타내었다. 한편, 사용한4가지 암세포주 중 유일하게 quinone reductase를 가지고 있는 HepG2를 이용한 quinone reductase 유도 활성여부를 측정한 결과 UPMH의 첨가농도 $320\mu g/mL$에서 대조군보다 2.36배의 높은 QR유도효과를 나타내었다. 이와 같은 실험결과에서 식품이나 건강 및 약리적 효과가 있는 식품으로 알려진 미역귀의 기능성 식품으로서의 개발이 기대되어진다.

Keywords

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