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KMID : 0604520070330030165
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Journal of the Society of Cosmetic Scientists of Korea
2007 Volume.33 No. 3 p.165 ~ p.173
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Antioxidative and Antiaging Effects of Jeju Native Plant Extracts(II)
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Kim Jin-Young
Yang Hee-Jung
Lee Keun-Ha
Jeon So-Mi
Ahn You-Jin
Won Bo-Ryoung
Park Soo-Nam
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Abstract
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In the previous study, we reported the antioxidative and cellular protective effects of Jeju native plant extracts. In this study, we investigated the anti-oxidative, anti-wrinkle and whitening effects of new 37 plant extracts collected from self-growing plants in Jeju island. Their anti-oxidant activities were measured by the 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical scavenging assay and reactive oxygen species(ROS) scavenging assay in system. The cytoprotective properties of 37 plant extracts were assessed in the rose-bengal sensitized photohemolysis of human erythrocytes. The inhibitory effect of 37 plant extracts on tyrosinase were investigated to assess their whitening efficacy. Finally, their anti-elastase activities were measured to predict the anti-wrinkle efficacy in the human skin. The results showed that the extracts of Myrica rubra stem bark and Securinega suffruticosa have the free radical scavenging activity(, respectively), and the extracts of Quercus acutissima leaf and Securinega suffruticosa stem bark have the prominent ROS scavenging activity(). Photohemolysis of erythrocytes in the presence of rose-bengal as a sensitizer was inhibited by the extracts of Securinega suffruticosa stem bark and Salix koreensis stem(, 895 min, 640 min at 50 , respectively. Myrica rubra stem bark extract(77.8% at 200 ) and Salix koreensis stem extract(76.2% at 200 ) also have the inhibitory effect on tyrosinase and elastase activities, respectively. These results indicated that the stem park of Myrica rubra, Securinega suffruticosa, and Camellia japonica, the stem of Salix koreensis, and the leaf of Quercus aqutissima and Camellia japonica could have e benefitial effects when they are added as ingredients in cosmetics.
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KEYWORD
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ROS, Jeju island native plants, anti-oxidant, tyrosinase, elastase
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