The Effect of Antibacteria and Antioxidantion Activities from Needle Leaf Tree

침엽수 추출물의 항균.항산화 효과

  • Zhoh, Choon-Koo (Department of Chemical & Environmental Engineering, Soong Sil University) ;
  • Kim, Kyung-Rae (Department of Chemical & Environmental Engineering, Soong Sil University) ;
  • Kim, Joo-Chan (Department of Chemical & Environmental Engineering, Soong Sil University)
  • 조춘구 (숭실대학교 환경.화학공학과) ;
  • 김경례 (숭실대학교 환경.화학공학과) ;
  • 김주찬 (숭실대학교 환경.화학공학과)
  • Published : 2007.12.30

Abstract

We studied anti-microbial and anti-oxidant activities of bio-active components in stem of Juniperus chinensis L. and leaf of Abies koreana Wilson. Those plants of needle leaf tree family were reported to contain anti-cancer compounds. The anti-bacterial activity was tested by Broth dilution method against Escherichia coli and Staphylococcus aureus. As results, Juniperus chinensis L. and Abies koreana Wilson extracts showed 17.0% and 8.5% higher anti-bacterial activity than methyl paraben, respectively. The free radical scavenging activity of Juniperus chinensis L. and Abies koreana Wilson extracts showed 45 % and 44 % at 5,000 ppm. We measured polyphenol (catechin equivalent) and flavonoids quantity. The Juniperus chinensis L. extract contained 312 mg/g of polyphenol and 105 mg/g of flavonoids. The Abies koreana Wilson extract contained 280 mg/g of polyphenol and 103.8 mg/g of flavonoids. The cytotoxicity of extracts was measured by neutral red assay. Extracts did not affect the viability of CCK-986sk cells up to a concentration of 1,250 ppm. In conclusion, these data suggest that extracts of needle leaf trees would be usefull as antiseptic agents and anti-oxidants for cosmetic products.

산업발전에 따라 환경분야가 대두됨에 따라 민감성 피부에 화장품을 사용하는데 있어 부작용이 증가하였다. 이에 따라 저자극성 방부제의 개발을 위하여 항암효과가 입증된 침엽수 중 구상나무, 향나무의 활성성분을 추출하여 항균력을 측정 평가하였다. 항균력 측정에는 Broth dilusion법이 사용되었으며, 균주는 그람 음성균인 Escherichia coli와 그람 양성균인 Staphylococcus aureus를 사용하였다. 그 결과 항균효과는 향나무와 구상나무가 625 ppm에서 methyl paraben에 비하여 각각 17.02 %, 8.5 % 더 높은 효과를 나타냈다. 항산화 효과 측정은 DPPH법, 총 폴리페놀 함량은 Folin-Denis법, 총 플라보노이드의 함량은 Nieva Moreno법을 사용하여 분석하였다. 항산화 효과에서 향나무는 5,000 ppm에서 45 %, 구상나무는 44 %의 항산화 효과를 나타냈으며 분석 결과 총 폴리페놀과 총 플라보노이드 함유량과 비례하였다. 침엽수 추출물의 세포독성실험은 피부섬유아세포인 CCK-986sk를 사용하였다. 그 결과 향나무, 구상나무가 39 ppm에서 1,250 ppm까지의 모든 농도에서 95% 이상의 높은 세포 생존률을 나타냈다. 이상을 종합해 본 결과 향나무 줄기, 구상나무 잎은 합성물질을 대체할 수 있는 방부제 및 보조 항산화제로서 사용이 가능하다고 할 수 있다.

Keywords

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