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We determined the contents of total flavonoids and total polyphenols in Hippophae rhamnoides L.from six origins by Al(NO3)3-NaNO2-NaOH method and Folin-phenol method,respectively.Moreover,we evaluated the antioxidant activity of Hippophae rhamnoides L. extract by the determination of the scavenging rates of DPPH free radicals,ABTS free radicals,and ·O~-2.The results show that there are some differences in the contents of total flavonoids and total polyphenols in Hippophae rhamnoides L.from different origins.Among them,the contents of total flavonoids and total polyphenols in Hippophae rhamnoides L.from Inner Mongolia are the highest,reaching 38.84 mg·g-1 and 33.31 mg·g-1,respectively,while those from Gansu are the lowest,reaching 8.50 mg·g-1 and 12.36 mg·g-1,respectively.The Hippophae rhamnoides L.extracts from different origins have higher antioxidant activity,which have a certain scavenging effect on three kinds of free radicals,and there is a dose-effect relationship within a certain concentration range.
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Basic Information:
China Classification Code:O657.32;TS207.3
Citation Information:
[1]LI Na,HU Yueyue,GE Liang.Determination of Contents of Total Flavonoids and Total Polyphenols in Hippophae rhamnoides L. from Different Origins and Their Antioxidant Activity[J].Chemistry ＆ Bioengineering,2021,38(08):64-68.
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新疆维吾尔自治区科技平台建设项目(PT14-13)
2021-08-05
2021-08-05