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Antioxidative Activity and Component Analysis of Prunella vulgaris L. Extract/Fractions

하고초 추출물의 항산화 활성 및 성분 분석

  • Suh, Ji Young (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Seong, Joon Seob (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Yun, Mid Eum (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Lee, Ye Seul (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Ha, Ji Hoon (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology) ;
  • Park, Dong Soon (ARAM HUVIS Co., Ltd.) ;
  • Park, Soo Nam (Department of Fine Chemistry, Cosmetic R&D Center, Cosmetic Industry Coupled Collaboration Center, Seoul National University of Science and Technology)
  • 서지영 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터) ;
  • 성준섭 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터) ;
  • 윤믿음 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터) ;
  • 이예슬 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터) ;
  • 하지훈 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터) ;
  • 박동순 (아람휴비스(주)) ;
  • 박수남 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소, 코스메틱 융복합산업지원센터)
  • Received : 2016.09.26
  • Accepted : 2016.12.09
  • Published : 2016.12.30

Abstract

In this study, the antioxidative effects and active component analysis of 50% ethanol extract, ethyl acetate fraction and aglycone fraction obtained from Prunella vulgaris L. were investigated. The free radical scavenging activities ($FSC_{50}$) was investigated at 50% ethanol extract ($15.25{\mu}g/mL$), ethyl acetate fraction ($8.68{\mu}g/mL$), and aglycone fraction ($8.25{\mu}g/mL$) respectively. Reactive oxygen species (ROS) scavenging activities ($OSC_{50}$) in $Fe^{3+}-EDTA/H_2O_2$ system using the luminol-dependent chemiluminescence assay was investigated at 50% ethanol extract ($4.68{\mu}g/mL$), ethyl acetate fraction ($1.00{\mu}g/mL$), and aglycone fraction($1.02{\mu}g/mL$) respectively. In the cellular protective effect against $^1O_2$ induced cellular damage of human erythrocytes, extract/fractions of P. vulgaris L. were increased in a concentration dependent manner($1{\sim}25{\mu}g/mL$). Especially, ${\tau}_{50}$ of aglycone fraction at concentrations of $25{\mu}g/mL$ showed the most protective effects at 337.9 min. It's showed nine times higher (+)-${\alpha}$-tocopherol (${\tau}_{50}=38.7min$) as typical antioxidant in the $^1O_2$-induced photohemolysis of human erythrocytes. TLC and HPLC were used to analyse active components in the ethyl acetate fraction and aglycone fraction of P. vulgaris L. In ethyl acetate fraction, caffeic acid, rosmarinic acid, quercetin 3-${\beta}$-D-glucoside, rutin, kaempferol-3-O-rutinoside, astragalin (kaempferol-3-O-glucoside) were identified. In aglycone fraction, caffeic acid, rosmarinic acid, quercetin, kaempferol were identified. These results indicated that extract/fraction of P. vulgaris L. is may be used in cosmetics industry as natural antioxidants by quenching and/or scavenging $^1O_2$ and other ROS, and protecting cellular membranes.

본 연구에서는 하고초(Prunella vulgaris L.)의 50% 에탄올 추출물, 에틸아세테이트 분획 및 아글리콘 분획을 대상으로 항산화 활성과 유효성분 분석 연구를 수행하였다. 1,1-Diphenyl-2-picrylhydrazyl (DPPH)를 이용한 자유라디칼 소거활성($FSC_{50}$)은 50% 에탄올 추출물, 에틸아세테이트 분획 및 아글리콘 분획에서 각각 $15.25{\mu}g/mL$, $8.68{\mu}g/mL$$8.25{\mu}g/mL$이었다. Luminol 발광법을 이용한 $Fe^{3+}-EDTA/H_2O_2$계에서 생성된 활성산소종(reactive oxygen species, ROS)에 대한 하고초 추출물의 총항산화능($OSC_{50}$)은 50% 에탄올 추출물, 에틸아세테이트 분획 및 아글리콘 분획에서 각각 $4.68{\mu}g/mL$, $1.00{\mu}g/mL$$1.02{\mu}g/mL$이었다. $^1O_2$로 유도된 적혈구 세포손상에 대한 보호효과는 $1{\sim}25{\mu}g/mL$의 농도에서 농도 의존적으로 증가하였고, 특히 $25{\mu}g/mL$ 농도에서 아글리콘 분획의 ${\tau}_{50}$이 337.9 min으로 높은 세포 보호 활성을 나타내었다. 이는 대표적인 항산화 물질로 알려진 (+)-${\alpha}$-tocopherol (${\tau}_{50}=38.7$ 분)보다도 9배나 큰 세포 보호 효과를 나타냄을 알았다. 실험에 사용된 하고 초 추출물의 에틸아세테이트 분획과 아글리콘 분획에 대하여 TLC와 HPLC를 이용한 성분 분석을 수행하였다. 에틸아세테이트 분획에서는 caffeic acid, rosmarinic acid, quercetin 3-${\beta}$-D-glucoside, rutin, kaempferol-3-O-rutinoside, astragalin (kaempferol-3-O-glucoside)을 확인하였다. 아글리콘 분획에서는 caffeic acid, rosmarinic acid, quercetin 및 kaempferol이 존재함을 확인하였다. 이상의 결과들로부터, 하고초 추출물 및 분획물은 $^1O_2$ 또는 ROS를 소거함으로써 세포막을 보호할 수 있는 천연 항산화제로서 화장품 분야에서 응용이 가능함을 시사하였다.

Keywords

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