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Effect of Abelmoschus esculentus extract on anti-melanogenesis and skin barrier function

오크라 추출물의 멜라닌 생성저해 및 피부장벽개선 효과

  • Kim, Hyun-Soo (Department of Food science and Technology, Jungwon University)
  • 김현수 (중원대학교 식품공학과)
  • Received : 2018.02.01
  • Accepted : 2018.03.30
  • Published : 2018.06.30

Abstract

We investigated the application of functional materials by examining a variety of physiological activities of Abelmoschus esculentus extract. A. esculentus extract had a low cytotoxicity against murine melanoma B16F10 cells. At concentrations showing little or no cytotoxicity, A. esculentus extract showed high a DPPH radical scavenging activity ($ID_{50}$, $5.24{\mu}g/mL$), inhibited tyrosinase activity ($ID_{50}$, $102.12{\mu}g/mL$), and decreased melanin content ($ID_{50}$, $17.85{\mu}g/mL$). The treatment of B16F10 cells with A. esculentus extract suppressed the protein expression of tyrosinase in a dose-dependent manner. These findings suggest that A. esculentus extract inhibits melanin synthesis in murine melanoma B16F10 cells by suppressing intracellular tyrosinase expression, as well as directly inhibits tyrosinase activity simultaneously. Additionally, A. esculentus extract promotes the expression of involucrin, which is related to skin barrier protection. These results indicate that A. esculentus extract is an appropriate material for improving skin barrier function.

본 연구에서 오크라(Abelmoschus esculentus)에 대한 다양한 생리활성을 조사하여 기능성소재 응용가능성을 검토하였다. 오크라 추출물은 멜라노마 세포에 대하여 낮은 세포독성을 나타냈다. 세포독성이 거의 없는 농도에서 오크라 추출물 처리 시, 산화방지활성($ID_{50}$, $5.24{\mu}g/mL$), tyrosinase 활성저해($ID_{50}$, $102.12{\mu}g/mL$) 및 멜라닌 함량 저하($ID_{50}$, $17.85{\mu}g/mL$)를 보여주었다. 오크라 추출물 농도 의존적으로 tyrosinase 발현이 억제되었으며, 이는 오크라 추출물이 직접적인 tyrosinase 활성저해 및 세포 내 tyrosinase 발현을 억제시킴으로써 멜라닌 합성을 저해하는 것으로 판단된다. 또한, 오크라 추출물이 피부장벽 보호 지표물질로서 관련된 단백질인 involucrin 발현을 증가시키는 것을 확인하였다. 이와 같은 결과로 미루어 볼 때 오크라 추출물은 피부미백 소재 등 피부장벽 개선 효과를 지닌 기능성 화장품에 활용하기 위한 매우 효과적인 재료가 될 수 있다고 판단된다.

Keywords

References

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