Comparison of the phenolic content and antioxidant activities of apocynum venetum l. (Luo-Bu-Ma) and two of its alternative species

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Abstract

The leaves of Apocynum venetum L. (AV), a native Chinese plant, have been used as folk medicine in China and Japan. This study evaluated the content of the active antioxidant component and antioxidant activities of AV, and its two alternative species, Poacynum pictum (Schrenk) Baill. (PP) and Poacynum hendersonii (Hook.f.) Woodson (PH). The total phenolic and total flavonoid contents were determined. In addition, the quantitative analysis of two major flavonoid compounds (hyperoside and isoquercitrin) was carried out by HPLC. The antioxidant activities were investigated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity method, the reducing power test and the chelating ability of ferrous ions. The highest total phenolic and flavonoid contents were observed in the AV methanolic extract, followed by the PP and PH methanolic extracts. HPLC analysis indicated that isoquercitrin was one of the major components in all three species, however, hyperoside was only detected in AV at high levels. All the antioxidant assays we performed demonstrated that the AV extract was markedly superior to those of the other two species. © 2010 by the authors; licensee MDPI, Basel, Switzerland.

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Liang, T., Yue, W., & Li, Q. (2010). Comparison of the phenolic content and antioxidant activities of apocynum venetum l. (Luo-Bu-Ma) and two of its alternative species. International Journal of Molecular Sciences, 11(11), 4452–4464. https://doi.org/10.3390/ijms11114452

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