Preliminary Screening of Some Jeju Island Native Plants for Whitening and Antioxidant Activity

제주도 자생식물들에 대한 미백 및 항산화 효능 탐색

  • Published : 2006.09.30

Abstract

In this study, we investigated the whitening and anti-oxidant activity of 37 Jeju island native plants. The active ingredients of the plants were prepared by methanol extraction. Whitening activity of plant extracts was examined from the inhibitory effect of tyrosinase and the inhibition of melanin synthesis of the B16-F1 cell line. Their anti-oxidant activity was measured by electron donating ability of DPPH (1,1-diphenyl-2-picrylhydrazyl) and ROS (reactive oxygen species) scavenging activity in V79-4 lung fibroblast cells using DCF-DA (dichlorofluorescin diacetate). Cytotoxicity of the extracts on cell s based experiments was investigated by MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) assay. Also, the toxicity test using a rabbit and the human skin patch test were carried out for examining the safety of the extracts which showed the high whitening activity. It is interesting that the extracts of Lespedeza cuneata, Ligustrum lucidum (stem), Morus bombycis (stem) and Prunella vulgaris var. lilacina showed both potent whitening and anti-oxidant activities.

본 연구에서는 제주도에서 자생하는 37 종의 식물추출물에 대한 미백 및 항산화 효능을 조사하였다. 미백 효능은 in vitro tyrosinase 저해활성과 B16-F1 세포를 이용한 멜라닌 합성 저해효과를 조사하여 확인하였고, 항산화 효능은 DPPH (1,1-diphenyl-2-picrylhydrazyl)를 이용한 전자공여능 측정방법과 DCF-DA (dichlorofluorescin diacetate)를 이용한 V79-4 폐 섬유아세포에서 활성 산소종 소거작용 능력을 조사하여 측정하였다. 세포실험 조건에서 식물추출물들의 투여농도에 따른 세포독성 정도를 조사하기 위하여 MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) assay를 수행하였다. 미백 효능조사 실험에서 우수한 결과를 나타내었던 8종의 식물 추출물들은 토끼를 이용한 국소 독성 시험 및 인체 피부 자극 임상 시험에 적용하여 안전성을 조사하였다. 연구결과에서 높은 미백과 항산화 효능을 동시에 나타내었던 비수리(Lespedeza cuneata), 제주광나무(Ligustrum lucidum (stem)), 산뽕나무(Morus bombycis (stem)), 꿀풀(Prunella vulgaris var. lilacina)의 식물추출물들은 화장품 원료화에 매우 유리한 조건을 갖고 있음을 확인하였다.

Keywords

References

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