Abstract
백삼과 홍삼의 quercetin, cinnamic acid, p-coumaric acid, maltol, esculetin 함량을 측정한 결과 백삼에는 cinnamic acid가 가장 높은 함량을 보였고, 홍삼에는 증숙과정 중에 생성되는특이 성분인 maltol이 가장 높은 함량을 나타냈다. 인삼시료 중 백삼의 ethyl acetate 분획물은 melan-a 세포주에서의 세포생존율 대비 멜라닌 생성억제활성측정, UV-흡수도 측정, tyrosinase 억제활성 측정에서 모두 우수한 활성을 나타내었으며, 이의 활성 성분으로는 cinnamic acid가 주요한 역할을 하는 것으로 판단되어진다. 한편, maltol을 다량 함유한 홍삼 ethyl acetate 분획물은 UV-흡수 활성을 보였으나 다른 유의적인 활성을 나타내지 않았다. 따라서 인삼소재 중 백삼 ethyl acetate 분획물은 피부미백소재로써의 기능을 가지는 것으로 판단된다. Quantitative difference in five phenolic acids between white and red ginsengs was measured in this study. As the results, white ginseng has higher contents of cinnamic acid, quercetin and p-coumaric acid than red ginseng. Maltol was mainly included in red ginseng. These five compounds were recently reported to have tyrosinase inhibitory effects. These reports led us to investigate the de-pigmenting effect of ginseng products. In our examination of effect on tyrosinase activity, UV-protection and melanin production in melan-a cells, ethyl acetate traction of white ginseng extract and cinnamic acid showed potent de-pigmenting properties. The results indicated that white ginseng might be useful as skin whitening material and cinnamic acid proved to be one of active ingredient.
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