Biological Activities of Rosaceae Plants Extracts

장미과 식물 추출물의 생물학적 활성

  • Published : 2004.12.01

Abstract

DPPH radical-generating system was used to evaluate the antioxidant properties of the Rosaceae. The inhibitory effects of ethanolic extracts from Rosaceae plants were investigated on melanin biosynthesis which is closely related to hyperpigmentation. Of the Rosaceae extracts, Prunus sargentii, Rubus coreanus, Chaenomeles sinensis, Photinia glabra and Pyrus pyrifolia showed a potent inhibition of tyrosinase, the enzyme which converts 3-(3,4-dihydroxyphenyl) alanine (dopa) to dopachrome in the melanin biosynthetic process. Furthermore, MMT assay was used to check the cytotoxicity of extracts on the human foreskin fibroblast cell line, Hs68. Among the Rosaceae, bark of Prunus sargentii, bark wood of Photinia glabra and all parts or Chaenomeles sinensis showed more than $50\%$ inhibition of mushroom tyrosinase activity at 100 ug/mL and more than $80\%$ of strong DPPH radical-scavenging activity at 10 ug/mL. In audition to, they had no cytotoxic activity on Hs68. These results suggest that these extracts might be except a controler in pigmentation.

장미과 식물(에탄을 추출)의 항산화력을 측정하기 위하여 1,1-diphenyl-2-picrylhydrazyl (DPPH) 자유 라디칼 생성 시스템을 이용하여 하였다. 또한 산화 환원 과정을 통하여 피부의 과잉 색소 생성에 관련된 멜라닌 생합성 과정의 조절 가능성을 조사하였다. 장미과 식물중에서 Prunus sargentii, Rubus coreanus, Chaenomeles sinensis, Photinia glabra와 Pyrus pyrifolia은 생합성 과정에서 dopa [3-(3,4-dihydroxyphenyl) alanine]를 도파크롬으로 변환시켜 주는 tyrosinase 저해 효과를 나타내었다. MTT 실험법은 장미과 에탄올 추출물의 사람 섬유아세포에 미치는 독성정도를 실험하기 위해 사용되었다. 장미과 식물중 특히 Prunus sargentii의 껍질, Phorinia glabra의 껍질과 나무 그리고 Chaenomeles sinenis의 잎, 껍질, 나무 모든 부분에서 mushroom tyrosinase에 대해 $100{\;}{\mu}g/mL$에서 50\%$ 이상의 저해 활성을 보였으며, $10{\;}{\mu}g/mL$ 농도에서 강한 라디칼 소거 효과를 나타내었다. 또한 이들 추출물은 사람 섬유아 세포에 대해 높은 생존율을 나타냄으로써 멜라닌 형성 과정을 조절할 수 있을 것으로 기대한다.

Keywords

References

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