Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Antioxidant and anti-inflammatory effects of the ethyl acetate fraction of the Agastache rugosa extract

배초향 에틸아세테이트 분획의 산화방지 및 항염증 활성

  • Kim, Bomin (Department of Natural Medicine Resources, Semyung University) ;
  • Han, Yeong Eun (College of Pharmacy, Sookmyung Women's University) ;
  • Lee, Hwa Jin (Department of Natural Medicine Resources, Semyung University)
  • 김보민 (세명대학교 자연약재과학과) ;
  • 한영은 (숙명여자대학교 약학대학) ;
  • 이화진 (세명대학교 자연약재과학과)
  • Received : 2016.11.18
  • Accepted : 2017.01.10
  • Published : 2017.06.30
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Abstract

To evaluate the antioxidant activity of hexane, ethyl acetate, and butanol fractions obtained from Agastache rugosa extract, we measured the total polyphenol levels, DPPH radical scavenging activity, and reducing power. The ethyl acetate fraction of A. rugosa (AREA) displayed high phenolic levels, potent DPPH radical scavenging effect, and powerful reducing power. In addition, we examined the ability of AREA to inhibit nitric oxide (NO) production in lipopolysaccharide (LPS)-activated BV-2 microglia. AREA suppressed NO production and inducible nitric oxide synthase (iNOS) expression and downregulated interleukin-6 (IL-6) mRNA level in LPS-stimulated BV-2 microglia. Furthermore, we detected rosmarinic acid in AREA by HPLC, which suggested that rosmarinic acid could be one of the bioactive materials responsible for the antioxidant and anti-inflammatory activities of AREA. These results suggested that AREA may be a good source of functional foods with antioxidant and anti-inflammatory activities.

배초향 추출물 및 분획별 생리활성 물질의 분포양상을 검정하기 위해 파이토케미컬 검색을 한 결과, 플라보노이드 확인시험에서 헥세인을 제외한 에틸아세테이트 및 부탄올 분획에서 양성반응을 확인하였다. 배초향 추출물의 극성에 따른 분획-헥세인, 에틸아세테이트 및 부탄올 분획의 산화방지 정도를 평가한 결과, 폴리페놀 함량, DPPH 라디칼 소거 및 환원력 실험에서 에틸아세테이트 분획이 다량의 폴리페놀을 함유하며 강력한 라디칼 소거 및 환원능력을 나타냈다. 또한 배초향 에틸아세테이트 분획의 항염 활성을 평가한 결과, 지방질다당류로 활성화된 BV-2 microglia에서 발생하는 과량의 산화질소(II) 생성을 억제하였을 뿐 아니라, 산화질소(II) 생성 효소인 iNOS 및 염증성 사이토카인 IL-6의 발현을 억제함을 확인하였다. 강력한 산화방지 및 항염증 활성을 나타내는 배초향 에틸아세테이트 분획내의 활성물질을 확인하고자 HPLC를 이용하여 분석한 결과, 배초향의 산화방지 물질로 잘 알려져 있는 로스마린산이 배초향 에틸아세테이트 분획에 함유되어 있음을 확인하였다.

Keywords

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