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KMID : 0604520220480030275
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Journal of the Society of Cosmetic Scientists of Korea
2022 Volume.48 No. 3 p.275 ~ p.285
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Identification of Anti-oxidant, Anti-aging, and Whitening Effects of Diospyros kaki Extracts
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Hong Chang-Eui
Lyu Su-Yun
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Abstract
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In this study, we prepared two extracts using 1,3-butylene glycol (DBG) and ethanol (DET), with Diospyros kaki and determined the anti-oxidant, anti-aging, and whitening effects in vitro. Anti-oxidant activity was measured by DPPH and superoxide dismutase (SOD) method, and as a result, both DBG and DET extracts confirmed their anti-oxidant properties by exhibiting significant DPPH scavenging and SOD-like activities. For anti-aging activity, we measured elastase and hyaluronidase inhibition, and the inhibition of MMP-1 expression. Both DBG and DET significantly inhibited elastase and hyaluronidase activities dose-dependently, and MMP-1 expression was also reduced in both extracts. We also measured the whitening effects with tyrosinase activity and melanin production, but only DBG showed a decrease in tyrosinase.
In summary, D. kaki extract has strong antioxidant, anti-aging, and whitening functions, and it is believed that it can be used as a cosmetic material in the future.
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KEYWORD
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Diospyros kaki, anti-oxidant, anti-aging, whitening
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