Antioxidative Properties of Extract/Fractions of Suaeda asparagoides and Salicornia herbacea Extracts(I)

함초(나문재 및 퉁퉁마디) 추출물의 항산화 작용에 관한 연구(I)

  • Park, Soo-Nam (Department of Fine Chemistry, College of Nature & Life Science, Seoul National University of Technology) ;
  • Jeon, So-Mi (Department of Fine Chemistry, College of Nature & Life Science, Seoul National University of Technology) ;
  • Kim, So-I (Department of Fine Chemistry, College of Nature & Life Science, Seoul National University of Technology) ;
  • Ahn, Jeung-Youb (Saeng Green Cosmetics Co., Ltd)
  • 박수남 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 전소미 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 김소이 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 안정엽 ((주)생그린)
  • Published : 2007.09.30

Abstract

In this study, the antioxidative effects of Sueada asparagoides and Salicornia herbacea extracts were investigated. The free radical(1,1-diphenyl-2-picrylhydrazyl, DPPH) scavenging activity($FSC_{50}$) of extract/fractions of Sueada asparagoides was in the order: 100 % ethanol extract(329.33 ${\mu}g/mL$) < 50 % ethanol extract(40.73) < ethylacetate fraction(13.87) < deglycosylated aglycone fraction (7.80). In case of Salicornia herbacea, the free radical scavenging activities of ethylacetate fraction and aglycone fraction were 13.87 and 7.80 ${\mu}g/mL$, respectively. Reactive oxygen species(ROS) scavenging activities($OSC_{50}$) of Sueada asparagoides and Solicornia herbacea extracts on ROS generated in $Fe^{3+}-EDTA/H_2O_2$ system were investigated using the luminol-dependent chemiluminescence assay. The order of ROS scavenging activity of Sueada asparagoides extracts was 50 % ethanol extract($OSC_{50}$, $0.99{\mu}g/mL$) < ethylacetate fraction (0.05) < aglycone fraction (0.03). Aglycone fraction showed the most prominent scavenging activity. In case of Salicornia herbacea, the ROS scavenging activities of ethylacetate fraction and aglycone fraction were 0.10 and 0.20 ${\mu}g/mL$, respectively. The protective effects of extract/fractions of Sueada asparagoides and Salicornia herbacea on the rose-bengal sensitized photohemolysis of human erythrocytes were investigated. The ethanol extract(100%) of Sueada asparagoides diminished photohemolysis in a concentration dependent manner($1{\sim}100{\mu}g/mL$). Particularly deglycosylated aglycone fraction exhibited the most prominent celluar protective effect($\tau_{50}$, 310 min at 50 ${\mu}g/mL$). In case of Salicornia herbacea, ethylacetate fraction exhibited more potent protective effect. These results indicate that extract/fractions of Sueada asparagoides can function as antioxidants in biological systems, particularly skin exposed to UV radiation by scavenging $^1O_2$ and other ROS, and protect cellular membranes against ROS.

본 연구에서는 함초 추출물(나문재 및 퉁퉁마디)의 항산화능을 조사하였다. 나문재 추출물의 free radical(1,1-diphenyl-2-picrylhyazyl, DPPH) 소거활성($FSC_{50}$)은 100 % ethanol 추출물(329.33 ${\mu}g/mL$) < 50% ethanol 추출물(40.73) < ethylacetate 분획(13.87) < ethylacetate 분획에서 당을 제거시킨 aglycone 분획(7.80) 순으로 증가하였다. 퉁퉁마디의 경우, free radical 소거활성은 ethylacetate 분획 및 aglycone 분획이 각각 23.21 및 28.50 ${\mu}g/mL$이었다. Luminol-의존성 화학발광법을 이용한 $Fe^{3+}-EDTA/H_2O_2$ 계에서 생성된 활성산소종(reactive oxygen species, ROS)에 대한 나문재 추출물의 총항산화능은 50 % ethanol 추출물($OSC_{50}$, $0.99{\mu}g/mL$) < ethylacetate 분획(0.05) < aglycone 분획(0.03)순으로, aglycone 분획에서 가장 큰 활성을 나타내었다. 퉁퉁마디의 경우, ethylacetate 분획 및 당을 제거시킨 aglycone 분획의 ROS 소거활성은 각각 0.10 및 0.20 ${\mu}g/mL$이었다. 나문재 및 퉁퉁마디 추출물에 대하여 rose-bengal로 증감된 사람 적혈구의 광용혈에 대한 억제 효과를 측정하였다. 100 % ethanol 나문재 추출물의 경우 농도 의존적($1{\sim}100{\mu}g/mL$)으로 광용혈을 억제하였다. 특히 ethylacetate 분획에서 당을 제거시킨 aglycone 분획은 50${\mu}g/mL$ 농도에서 $\tau_{50}$이 310 min으로 매우 큰 세포보호 효과를 나타내었다. 퉁퉁마디의 경우는 ethylacetate 분획에서 비교적 큰 세포보호 활성을 나타내었다. 이상의 결과들은 나문재 추출물이 $^1O_2$ 혹은 다른 ROS를 소광시키거나 소거함으로써 그리고 ROS에 대항하여 세포막을 보호함으로써 생체계, 특히 태양 자외선에 노출된 피부에서 항산화제로서 작용할 수 있음을 가리킨다.

Keywords

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