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KMID : 0604520120380030275
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Journal of the Society of Cosmetic Scientists of Korea
2012 Volume.38 No. 3 p.275 ~ p.282
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Antioxidative Effect of Extracts from Different Parts of Juncus effusus L.
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Choi Chang-Hwan
Won Doo-Hyun
Hwang Jun-Pil
Park Soo-Nam
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Abstract
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In this study, the antioxidative effects of extracts from different parts of Juncus effusus L. were investigated. The three parts (above-ground part, below-ground part, medulla part) were selected. 50 % ethanol extract, ethyl acetate and aglycone fractions of J. effusus L. were used in experiments. The highest DPPH (1,1-diphenyl-2-picrylhydrazyl) scavenging activities (FSC50) was shown by medulla part (42.9 μ g/mL) in 50 % ethanol extracts, below-ground part (12.1 μ g/mL) in ethyl acetate fractions, and below-ground part (12.1 μ g/mL) in aglycone fractions. Reactive oxygen species (ROS) scavenging activities (OSC50) on ROS generated in Fe3+-EDTA/H2O2 system using the luminol-dependent chemiluminescence assay showed the most prominent effect of medulla part (0.29 μ g/mL) in 50 % ethanol extracts, below-ground part (0.25 μ g/mL) in ethyl acetate fractions, and medulla part (0.20 μ g/mL) in aglycone fractions. The cellular protective effects of extract/fractions of J. effusus L. on the rose-bengal sensitized photohemolysis of human erythrocytes were increased in a concentration dependent manner (0.5 ∼ 10 μ g/mL). Especially, aglycone fraction of medulla part at a concentration of 10 μ g/mL showed the most prominent protective effect among all extracts (τ50, 321.0 min). These results indicate that extracts from below-ground part and medulla part of J. effusus L. extracts can be used as an natural antioxidant. Particularly, J. effusus L. can protect suggesting a high τ50 skin where many 1O2 was generated by sunlight exposure.
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KEYWORD
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J. effusus L., antioxidative activity, singlet oxygen, cell protection
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