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• W2075935068 abstract "본 연구는 더위지기의 항산화 및 미백제로서의 유효성을 알아보기 위해 100% 에탄올과 물을 이용한 추출물의 폴리페놀 함량, 플라보노이드 함량, 전자공여능, tyrosinase 활성 저해효과 및 세포내 멜라닌 생합성 억제효과를 조사하였다. 유용한 생리활성을 가질 것으로 예상되는 폴리페놀 및 플라보노이드 함량을 실험한 결과 총 폴리페놀과 플라보노이드 함량은 에탄올 추출물에서 547.96, 65.93 mg/g, 물 추출물에서 610.45, 82.86 mg/g으로 확인하였으며 더위지기의 에탄올 추출물과 물 추출물 모두 200 mg/g 이상의 높은 폴리페놀을 함유하는 것을 확인하였다. 항산화능을 평가하기 위해 DPPH를 이용한 전자공여능 실험 결과 더위지기의 에탄올 추출물에서 <TEX>$SC_{50}$</TEX>값이 17.1 ppm으로 물 추출물의 198.4 ppm 보다 약 11배 높은 것을 확인하였다. 미백제로의 효능을 알아보고자 실행한 tyrosinase 활성 저해 및 세포내 멜라닌 생합성 억제에 관한 결과 더위지기의 에탄올 추출물에서 tyrosinase 활성억제농도(<TEX>$IC_{50}$</TEX>)은 481.8 ppm, 멜라노사이트에 50 ppm 농도로 처리하였을 때 멜라닌 생성억제 효과가 36.8%로 높은 효과를 가지는 것을 확인하였다. 이상의 결과에 따르면 더위지기의 에탄올 추출물의 경우 항산화제 및 미백제로서 큰 가능성을 가지는 것으로 나타났다. The purpose of this study was to investigate the antioxidant and skin whitening effects of Artemisia iwayomogi extract. Artemisia iwayomogi was extracted with 100% ethanol and water. The antioxidative and skin whitening effects of these extracts were determined with in vitro assays by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) method assessing the inhibitory effects on tyrosinase activity and melanogenesis in B16 melanoma cells. Radical scavenging activity of the extracts was tested by DPPH assay which showed a high DPPH radical scavenging activity (<TEX>$SC_{50}$</TEX>; 17.1 ppm in EtOH, 198.4 ppm in water). In term of tyrosinase inhibitory activity, Artemisia iwayomogi ethanol extract showed high inhibition activity (<TEX>$IC_{50}$</TEX>: 481.8 ppm). In B16 mouse melanoma cells, the ethanol extract significantly inhibited melanin synthesis by 36.8% at a concentration of 50 ppm. These results suggest that Artemisia iwayomogi ethanol extract has significant antioxidant activity and whitening activity." @default.
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• W2075935068 date "2012-02-29" @default.
• W2075935068 modified "2023-10-11" @default.
• W2075935068 title "The Antioxidant and Skin Whitening Effect of Artemisia iwayomogi Extracts" @default.
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• W2075935068 doi "https://doi.org/10.9721/kjfst.2012.44.1.089" @default.
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