Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Antioxidant Properties in Water and 70% Ethanol Extracts of Houttuynia Cordata Thunb

어성초의 추출물에 따른 항산화력 연구

  • Kim, Hyung Soo (Dept. of Convergence Industry, Seoul Venture University) ;
  • Kim, Mi-Ja (The Institute of Life Science, Sungkyunkwan University) ;
  • Cheong, Chul (Dept. of Convergence Industry, Seoul Venture University) ;
  • Kang, Soon Ah (Dept. of Conversing Technology, Graduate School of Venture, Hoseo University)
  • 김형수 (서울벤처대학원대학교 융합산업학과) ;
  • 김미자 (성균관대학교 생명공학연구소) ;
  • 정철 (서울벤처대학원대학교 융합산업학과) ;
  • 강순아 (호서대학교 벤처전문대학원 융합공학과)
  • Received : 2013.09.23
  • Accepted : 2013.10.10
  • Published : 2013.10.31
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Abstract

Houttuynia cordata Thunb is a famous traditional Chinese medicine. Also it has rich in functional and bioactive substances with outstanding immunopotentiation, anti-cancer, antimicrobial, and anti-aging effects. This study was evaluated water and 70% ethanol extracts of Houttuynia cordata Thunb using in vitro system antioxidant properties methods. The scavenging DPPH and ABTS radicals of 2 mg/mL 70% ethanol extract were 91.8 and 54.8%, respectively. Also, The FRAP assay of this showed increase in activity. In results, the antioxidant properties of 70% ethanol extract increased significantly compared to water extract(p < 0.05). Therefore, 70% ethanol extract of Houttuynia cordata Thunb may contribute to antioxidant property.

본 연구는 여러 생리활성 성분이 다량 함유되어 있다고 알려진 전통 약용 식물인 어성초의 추출 조건에 따른 항산화력을 관찰하였는데, 추출조건으로는 식용으로 활용가능한 물 추출과 70% 에탄올 추출을 통해 항산화력을 비교하였다. 항산화력은 총 페놀 함량, DPPH 라디칼 소거능, ABS 양이온 소거능, FRAP 방법으로 측정하였다. 결과적으로 총 페놀 함량은 어성초 물추출물이나 70% 에탄올 추출물 모두 77.8 mM Tannic acid/g extract로 나타나 유의적인 차이는 없었고 DPPH 라디칼 소거능은 물 추출물 2 mg/mL 농도에서 78.4%, 70% 에탄올 추출물은 91.8%로 유의적으로 소거능이 70% 에탄올 추출 시에 우수한 것으로 나타났다. 또한 ABTS 양이온 소거능에서도 물 추출물은 2 mg/mL 농도에서 47.7%, 70% 에탄올 추출물에서는 54.8%로 유의적으로 70% 에탄올 추출물이 저해능이 우수한 것으로 나타났으며 FRAP 방법으로 통한 환원 능도 70% 에탄올 추출물이 우수한 것으로 관찰되었다. 이와 같은 결과로 어성초 추출물 조건중 70% 에탄올 추출 시 항산화력을 높힐 수 있는 생리활성 성분이 추출되는 것으로 사료되며 식용 가능한 기능성 식품소재로써 어성초 에탄올 추출물을 사용할 수 있을 것으로 사료된다.

Keywords

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