Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Antimicrobial Effects and Antioxidative Activity of Baek-bu-ja(Aconiti koreani Rhizoma) by Extraction Solvent Ratio

추출용매 비에 따른 백부자(Aconiti koreani Rhizoma) 추출물의 항균효과 및 항산화효과

  • Yoon, So-Jung (Department of Food Engineering Sangju National University) ;
  • Kim, Jeung-Hoan (Department of Food Engineering Sangju National University) ;
  • Lee, Kyoung-Hwan (Department of Food Engineering Sangju National University) ;
  • Kwon, Hyo-Jung (Department of Food Engineering Sangju National University) ;
  • Chun, Sung-Sook (Department of Food Science & Technology Yeungnam University) ;
  • Cho, Young-Je (Department of Food Engineering Sangju National University)
  • 윤소정 (상주대학교 식품공학과) ;
  • 김정환 (상주대학교 식품공학과) ;
  • 이경환 (상주대학교 식품공학과) ;
  • 권효정 (상주대학교 식품공학과) ;
  • 천성숙 (영남대학교 식품가공학과) ;
  • 조영제 (상주대학교 식품공학과)
  • Published : 2005.09.30
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Abstract

For the purpose of developing natural antioxidant, the antioxidative activity and antimicrobial of phenolics isolated from Baek-bu-ja (Aconiti koreani Rhizoma) were determined. Optimum extracting condition for phenolics were water extracts. HPLC analysis showed that the four major phenolic metabolites were rosemarinic, protocatechuic, caffeic and chlorogenic acids. The water extracts of Baekbuja did not have antimicrobial activity against H. pylori; however, the ethanol extracts revealed higher antimicrobial activity. Electron donation ability on DPPH of Baekbuja ethanol extract was 20% higher than other ethanol extracts. The 2,2'-azinobis-3-ethylbenzothiazoline-6-sulfonic acid radical decolorization (ABTS) and antioxidant protection factor (PF) were determined with extracts from Aconiti koreani Rhizoma. 94% inhibition and 1.14 PF were shown on ABTS and antioxidant protection factor with 60% ethanol extracts. Also, TBARS (thiobarbituric acid reactive substances) showed $0.19\;{\mu}M$ in the control and $0.07\;{\mu}M$ in the 80% ethanol extracts. The result suggests that Baekbuja extract may be useful as potential sources of anti Helicobacter pylori, antioxidant.

백부자(Aconiti koreani Rhizoma)를 이용한 항암효과와 노화억제를 위한 기능성 식품 소재로 개발하기 위하여 항균 및 항산화효과를 조사하였다. 백부자 추출물의 phenol성 물질의 추출수율은 열수추출물이 $8.45{\pm}0.27\;mg/g$이었으며, 에탄올추출물은 20, 40, 60, 80, 100% 농도별로 각각 $6.40{\pm}0.10\;mg/g$, $6.53{\pm}0.26\;mg/g$, $6.96{\pm}0.25\;mg/g$, $2.44{\pm}0.04\;mg/g$, 0.31{\pm}0.17\;mg/g$으로 열수추출물의 phenol 함량이 다소 높게 나타났다. 항산화 효과가 높다고 알려진 phenol 성분의 함량을 HPLC 분석결과 항산화 효과가 높은 protocatecuic acid, chlorogenic acid, rosemarinic acid의 함량이 높게 나타났다. H. pylori에 대한 항균효과는 에탄올추출물에서만 관찰되었다. ABTS radical decolorization과 antioxidant protection factor(PF)를 살펴 본 결과 ABTS는 60% 에탄올추출물에서 $94.25{\pm}0.68%$로 가장 높은 저해율을 나타내었고, PF 역시 60% 에탄올추출물에서 $1.14{\pm}0.05$로 비교적 높은 protection factor을 나타내었다. DPPH에 대한 전자공여능은 20% 에탄올추출물에서 $93.69{\pm}0.19%$의 가장 높은 활성을 나타내었으나, 40%, 60%, 80%간의 유의적인 차이는 없었고, 열수추출물에서는 $60.10{\pm}1.63%$의 낮은 활성을 나타내었다. 활성산소 중 지방산화를 일으키는데 중요한 역할을 하는 hydroxyl radical에 대한 각 추출물들의 영향은 80% 에탄올추출물이 다른 농도의 추출물들에 비하여 낮은 TBARS 값을 나타내었다. 이상의 결과로 볼 때 백부자로부터 추출한 페놀성 물질은 60%의 ethanol로 추출한 추출물이 천연항산화 물질로 활용이 가능한 기능성 식품의 소재로의 개발이 가능할 것으로 사료된다.

Keywords

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