<P>The aim of this study was to investigate the antioxidant properties of the ethanol extract of the flower of <I>Camellia japonica</I> (<I>Camellia</I> extract). <I>Camellia</I> extract exhibited 1,1-diphenyl...
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https://www.riss.kr/link?id=A107623283
2011
-
SCOPUS,SCIE
학술저널
2618-2630(13쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>The aim of this study was to investigate the antioxidant properties of the ethanol extract of the flower of <I>Camellia japonica</I> (<I>Camellia</I> extract). <I>Camellia</I> extract exhibited 1,1-diphenyl...
<P>The aim of this study was to investigate the antioxidant properties of the ethanol extract of the flower of <I>Camellia japonica</I> (<I>Camellia</I> extract). <I>Camellia</I> extract exhibited 1,1-diphenyl-2-picrylhydrazyl radical and intracellular reactive oxygen species (ROS) scavenging activity in human HaCaT keratinocytes. In addition, <I>Camellia</I> extract scavenged superoxide anion generated by xanthine/xanthine oxidase and hydroxyl radical generated by the Fenton reaction (FeSO<SUB>4</SUB> + H<SUB>2</SUB>O<SUB>2</SUB>) in a cell-free system, which was detected by electron spin resonance spectrometry. Furthermore, <I>Camellia</I> extract increased the protein expressions and activity of cellular antioxidant enzymes, such as superoxide dismutase, catalase and glutathione peroxidase. These results suggest that <I>Camellia</I> extract exhibits antioxidant properties by scavenging ROS and enhancing antioxidant enzymes. <I>Camellia</I> extract contained quercetin, quercetin-3-<I>O</I>-glucoside, quercitrin and kaempferol, which are antioxidant compounds.</P>