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KMID : 0604520180440010039
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Journal of the Society of Cosmetic Scientists of Korea
2018 Volume.44 No. 1 p.39 ~ p.48
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The Coffee Sliver Skin Extracts from Coffee Beans Exhibited Cosmetic Properties with Antioxiant Activity and Inhibitory Effects for Elastase, Collagenase and Tyrosinase
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Lee Kyung-Eun
Son Sang-Hyeok
Kang Sang-Gu
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Abstract
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The coffee silver skin is a part of coffee beans. We report that the coffee sliver skin extracts exhibited cosmetic properties of antioxidant, anti-winkle and whitening effects. The ethanol extracts of silver skin showed free radical scavenging activity up to 92.26% in 50 μg/mL, especially against DPPH radical and ABTS radical cation. The silver skin extracts showed inhibitory effects for tyrosinase activity and DOPA oxidation in a dose-dependent manner, suggesting the extracts retain for the whitening property in cosmetics. The coffee silver skin extracts effectively inhibited the elastase and collagenase. Cytotoxicity of the coffee silver skin extracts was measured by the colorimetric MTS assay. The viability of the human keratinocytes (HaCaT) treated with the coffee silver skin extracts was same as that of untreated cells, indicating the extracts are safe to human cells. Here, we suggest that the silver skin extracts of coffee bean could be a potential natural substance for anti-winkle, whitening, antioxidant properties for cosmetics.
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KEYWORD
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coffee silver skin, anti-oxidant, whitening effect, anti-wrinkle, cell viability
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