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Nano-emulsion Containing Parthenocissus tricuspidata Stem Extracts for Enhanced Skin Permeation and the Antibacterial Activity of the Extracts

피부 흡수 증진을 위한 담쟁이덩굴 줄기 추출물 함유 나노에멀젼 및 이의 항균활성 연구

  • Jo, Na Rae (Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology) ;
  • Park, Min A (Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology) ;
  • Jeon, So Ha (Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology) ;
  • Park, Soo Nam (Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology)
  • 조나래 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소) ;
  • 박민아 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소) ;
  • 전소하 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소) ;
  • 박수남 (서울과학기술대학교 정밀화학과, 화장품종합기술연구소)
  • Received : 2013.02.01
  • Accepted : 2013.07.12
  • Published : 2013.09.28

Abstract

In a previous study, we investigated the antioxidative and cellular protective effects of Parthenocissus tricuspidata stem extracts. In this study, we prepared nano-emulsion containing P. tricuspidata stem extract to improve skin permeation. The particle size of the nano-emulsion using the microfluidizer was 302 nm. Its loading efficiency was over 86%. The size distribution of the nano-emulsion took a monodispersed form and the nano-emulsion was more stable than typical emulsion without using microfluidizer during a 2 week period. In vitro skin permeation study of nano-emulsion containing P. tricuspidata stem extracts was carried out using Franz diffusion cell. The 1,3-butylene glycol used as a control group had 32.59% skin permeation efficiency. The skin permeation efficiency of the nano-emulsion was 42.47%. Also, we observed the antibacterial activity of the ethyl acetate fraction on skin flora for prospective applications as a natural antimicrobial. The ethyl acetate fraction had antibacterial activities higher than methyl paraben on Staphylococcus aureus, and Bacillus subtilis. These results indicate that nano-emulsion containing P. tricuspidata stem extracts could possess valued applications in cosmetic formulations for improving skin permeation. Also, based on the antibacterial activities on skin flora, antioxidative and cellular protective effects shown in our previous study, we suggest that P. tricuspidata stem extracts could be used as functional cosmetic materials.

이전 연구에서 저자들은 담쟁이덩굴 줄기 추출물의 항산화 및 세포 보호 효과를 연구하였다. 본 연구에서는 우수한 활성을 갖는 담쟁이덩굴 줄기 추출물의 피부흡수를 증진시키고자 이를 함유한 나노에멀젼을 제조하고 물리적 특성 및 피부흡수능을 평가하였다. 고압유화기(microfluidizer)를 이용하여 제조한 나노에멀젼은 평균 입자 크기가 302 nm를 나타내었으며 포집 효율은 86% 이상으로 나타났다. 나노에멀젼은 단분산의 입도 분포를 나타내었고 고압유화과정을 거치지 않은 일반 에멀젼보다 2주간 높은 안정성을 나타내었다. Franz diffusion cell을 이용하여 제조된 담쟁이덩굴 추출물 함유 나노에멀젼의 피부흡수능을 평가하였다. 그 결과 대조군으로 사용된 1,3-butylene glycol 용액이 32.59%의 피부흡수율을 나타내었고, 나노에멀젼은 42.47%의 피부 흡수능을 나타내었다. 또한 담쟁이덩굴 줄기 추출물의 화장품에 있어 천연 항균제로써의 응용 가능성을 연구하고자 에틸아세테이트 분획의 피부 상재균에 대한 항균작용을 측정하였다. 항균활성 측정결과 담쟁이덩굴 줄기 추출물은 Staphylococcus aureus, Bacillus subtilis에 대해 항균활성을 나타내었으며, 화장품에 주로 사용되는 항균제인 methyl paraben 보다 높은 항균활성을 가지고 있음을 확인하였다. 이상의 결과들은 담쟁이덩굴 줄기 추출물을 함유한 나노에멀젼이 피부흡수능 증진을 통해 향후 화장품 제형으로서 이용가능성이 큼을 시사한다. 또한 담쟁이덩굴 줄기 에틸아세테이트 분획의 Gram (+) 세균에 대한 항균활성을 바탕으로 이전 연구에서 밝혀진 항산화 활성 및 세포보호효과와 더불어 기능성원료로서 응용 가능성이 큼을 시사한다.

Keywords

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