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A Study on the Whitening Effect of Mangifera indica L. Peel Extracts through Inhibition of Melanin Synthesis Factor

Melanin 생성 인자 억제 효과를 통한 Mangifera indica L. Peel의 미백효과 연구

  • Kim, Hyo-Min (College of Pharmacy, Kyungpook National University) ;
  • Yoo, Dan-Hee (College of Fusion and Convergence, Seowon University) ;
  • Lee, In-Chul (Department of Bio-Cosmetic Science, Seowon University)
  • 김효민 (경북대학교 약학대학) ;
  • 유단희 (서원대학교 융복합대학) ;
  • 이인철 (서원대학교 바이오코스메틱학과)
  • Received : 2021.11.01
  • Accepted : 2021.12.12
  • Published : 2022.03.28

Abstract

The purpose of this study was to investigate the whitening effects of hot water (AMPW) and ethanol (AMPE) extracts of Mangifera indica L. peel. To verify the whitening effects, tyrosinase inhibitory activity was measured. 9.51% inhibitory activity, and 35.98% inhibitory activity at 1,000 ㎍/ml. The effects of AMPW and AMPE on cell viability were measured using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay in B16-F10 melanoma cells. Greater than 95% cell viability was observed at 100 ㎍/ml. Thus, subsequent experiments were performed at concentrations less than 100 ㎍/ml. The whitening effects were confirmed by measuring the protein and mRNA expression levels of microphthalmia-associated transcription factor, tyrosinase, tyrosinase-related protein 1 (TRP-1), and TRP-2, which are factors involved in melanin synthesis. Western blotting and reverse transcription-polymerase chain reaction results confirmed that 100 ㎍/ml AMPW and AMPE showed superior inhibitory effects than the control treatment (alpha-melanocyte stimulating hormone only). Therefore, Mangifera indica L. peel extract had a whitening effect, and thus, has potential as a natural material for use in cosmetics.

본 연구의 목적은 애플망고 껍질의 열수 및 70% 에탄올 추출물의 미백 효과를 검증하고자 하였다. 애플망고 껍질의 열수 및 에탄올 추출물의 미백 효과를 측정하기 위해 tyrosinase 저해 활성을 측정한 결과, 최종 농도인 1,000 ㎍/ml에서 열수 추출물은 9%, 에탄올 추출물은 35%의 저해 효과를 보였다. 세포를 통해 미백효과를 측정하고자 멜라노마세포인 B16-F10을 이용해 세포 생존율을 MTT assay를 사용하여 측정하였다. 세포 생존율 측정 결과, 100 ㎍/ml 농도에서 각각 95.64%, 103.36%의 세포 생존율을 나타내었다. 이후 실험은 세포 생존율이 95% 이상 나타난 농도인 100 ㎍/ml 이하의 농도에서 실험을 수행하였다. 미백 효과는 멜라닌 합성에 관여하는 인자의 단백질 및 mRNA 발현을 측정하여 결정하였다. 단백질 발현은 western blot을 이용하여 측정하였으며, 그 결과 MITF, tyrosinase, TRP-1 및 TRP-2에 대한 단백질 발현은 100 ㎍/ml 농도에서 열수 추출물에 의해 59%, 65%, 26%, 18% 감소하였고, 에탄올 추출물에 의해 64%, 40%, 18%, 52% 감소하였다. MITF, Tyrosinase, TRP-1 및 TRP-2의 mRNA 발현은 RT-PCR을 통해 확인하였으며, 그 결과 100 ㎍/ml에서 열수 추출물에 의해 27%, 44%, 40%, 22% 감소하였고, 에탄올 추출물에 의해 9%, 51%, 11%, 52% 감소하였다. 따라서 애플망고 껍질 추출물이 미백 효과가 있음을 확인하였고, 천연물 소재로서의 이용가치가 높을 것으로 사료되어진다.

Keywords

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