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Antioxidative Activities and Whitening Effects of Ethyl Acetate Fractions from The Immature Seeds of Abeliophyllum distichum

미선나무 미성숙 종자의 항산화 및 미백 활성

  • Jang, Tae Won (Department of Medicinal Plant Science, Jungwon University) ;
  • Park, Jae Ho (Department of Medicinal Plant Science, Jungwon University)
  • 장태원 (중원대학교 생약자원개발학과) ;
  • 박재호 (중원대학교 생약자원개발학과)
  • Received : 2016.09.12
  • Accepted : 2017.05.16
  • Published : 2017.05.30

Abstract

Abeliophyllum distichum Nakai is deciduous shrubs of flowering plant in Oleaceae. It is important plant resources and consists of one species in the world. Also the endemic plant of A. distichum has been protected and designed endangered plant in Korea. For this reason, study on the immature seeds of A. distichum (ADS) hasn't progressed. In the present study, we evaluated the antioxidant activity and inhibitory effects on proteins and mRNA levels were related in the whitening effect in B16F10 cells. ADS was effective for reaction oxygen species (ROS). ROS causes various diseases such as aging, inflammation, cancer, and etc. Antioxidant properties were evaluated DPPH, ABTS radical scavenging activity and Reducing power. Plants were known that contained phenolic compounds were related in antioxidant activity. Phenolic compounds were phytochemicals commonly named natural polyphenols. These are secondary metabolites of plants involved in the defense against different types of stresses. In results, ADS suppressed the expression and transcription of Tyrosinase, TRP-1, TRP-2, and Microphthalmia-associated transcription factor (MITF). Tyrosinase, tyrosinase-related protein 1 (TRP-1), tyrosinase-related protein 1 (TRP-2) are known to play an important role in melanin biosynthesis. MITF regulated the expression and transcription of Tyrosinase, TRP-1, and TRP-2. In conclusion, ADS was effective in both antioxidant activities and whitening effects. Also, they were associated with the content of phenolic compounds. We suggested that ADS can be use antioxidants and skin-whitening functional cosmetics material derived from natural plant resources.

미선나무 미성숙 종자는 물푸레나무과의 관목으로 전세계적으로 1속 1종의 중요한 식물자원이다. 대한민국에서는 미선나무 자생지를 보존하고 멸종위기식물로 보호하고 있다. 이러한 이유로 미선나무 미성숙 종자에 대한 연구는 미비하다. 본 연구에서 미선나무 미성숙 종자의 항산화 활성과 미백 관련 단백질인 tyrosinase, TRP-1, TRP-2, MITF의 단백질 발현 및 mRNA 수준의 발현 억제 활성을 확인하였다. 미선나무 미성숙 종자는 활성산소종에 효과가 뛰어났으며, 활성산소종은 노화, 염증, 암 등 다양한 질병을 야기시킨다. 항산화 활성은 DPPH, ABTS 라디칼 소거활성 및 환원력을 평가하였으며, 이러한 활성은 페놀류 화합물과 관계가 있는 것으로 알려져 있다. 페놀류 화합물은 천연 폴리페놀이라고 불리는 파이토케미칼로서 다양한 환경적 요인에 의한 식물 방어 기작의 일환으로 생성되는 2차 대사산물이다. 페놀류 화합물은 노화, 항암을 포함한 많은 인간의 건강에 긍정적인 영향을 준다고 알려져 있다. 미선나무 미성숙 종자는 tyrosinase, TRP-1, TRP-2 단백질 및 mRNA를 조절하였으며, 이러한 요인은 멜라닌 생합성에 중요한 역할을 한다. 또한 microphthalmia-associated transcription factor (MITF)의 단백질 및 mRNA를 억제하였다. MITF는 Tyrosinase, TRP-1, TRP-2의 발현과 전사에 연관된 인자로 알려져 있다. 미선나무 미성숙 종자의 미백활성, 페놀류 화합물, 항산화 활성 사이의 연관관계를 확인하였으며, 결론적으로 미선나무 미성숙 종자는 천연 식물 자원으로부터 얻을 수 있는 항산화제 및 피부 미백을 위한 기능성 화장품 원료로 사용될 수 있다.

Keywords

References

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