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초록·키워드
Background: The Ministry of Environment, Korea recognizes Cotoneaster wilsonii Nakai as a second-class endangered plant. It is a native species that grows in Ulleung-do, Korea. To our knowledge, the bioactivity of this plant has not yet been reported. Therefore, in this study, we have reported the bioactivity of C. wilsonii Nakai.
Methods and Results: The anti-oxidant activities of C. wilsonii methanolic extract were investigated in vitro. The anti-oxidant activity was evaluated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assay, and the total phenolic and flavonoid content were measured. The leaf methanolic extract had the highest DPPH radical scavenging activity (IC50; 15.74 ㎍/㎖), and it also had the highest total phenolic and flavonoid content (220.95 ㎎·GAE/g, and 36.46 ㎎·QE/g extract respectively). Through high performance liquid chromatography (HPLC) analysis, chlorogenic acid was found to be the predominant among all phenolic compounds, showing a concentration of 84.24 ㎎/g extract. More than 60% decrease in nitric oxide (NO) production was found in the leaf methanolic extract.
Conclusions: To the best of our knowldege, this is the first report of the bioactivities of C. wilsonii. The results demonstrate that the leaf methanolic extract of C. wilsonii shows potent anti-oxidant, and anti-inflammatory activities.
Methods and Results: The anti-oxidant activities of C. wilsonii methanolic extract were investigated in vitro. The anti-oxidant activity was evaluated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assay, and the total phenolic and flavonoid content were measured. The leaf methanolic extract had the highest DPPH radical scavenging activity (IC50; 15.74 ㎍/㎖), and it also had the highest total phenolic and flavonoid content (220.95 ㎎·GAE/g, and 36.46 ㎎·QE/g extract respectively). Through high performance liquid chromatography (HPLC) analysis, chlorogenic acid was found to be the predominant among all phenolic compounds, showing a concentration of 84.24 ㎎/g extract. More than 60% decrease in nitric oxide (NO) production was found in the leaf methanolic extract.
Conclusions: To the best of our knowldege, this is the first report of the bioactivities of C. wilsonii. The results demonstrate that the leaf methanolic extract of C. wilsonii shows potent anti-oxidant, and anti-inflammatory activities.
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UCI(KEPA) : I410-ECN-0101-2019-480-000930973
