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dc.date.accessioned 2009-06-17T20:01:00Z
dc.date.available 2009-06-17T03:00:00Z
dc.date.issued 2008 es
dc.identifier.uri http://hdl.handle.net/10915/7708
dc.description.abstract In the scope of our ongoing researchers on antioxidant compounds, twenty four extracts and fractions obtained from Piper arboreum Aublet and Piper tuberculatum Jacq. (Piperaceae) were screened for radical scavenging capacity (RSC) by using DPPH colorimetric assay. The strongest activity was found in ethyl acetate fractions from the leaves of P. arboreum (IC50 = 5.70 μg/mL) and P. tuberculatum (IC50 = 8.40 μg/mL). Hydromethanol fractions of the leaves of P. tuberculatum and P. arboreum showed moderate RSC, with values of IC50 (μg/mL) of 11.9 and 19.2, respectively. Additionally, a brief phytochemical study of the ethyl acetate fraction of P. arboreum leaves affording quercetin (1) and quercitrin (2), two flavonols with antioxidant activity previously described in the literature. es
dc.format.extent p. 900-903 es
dc.language en es
dc.title Radical scavenging capacity of Piper arboreum and Piper tuberculatum (Piperaceae) es
dc.type Articulo es
sedici.identifier.uri http://www.latamjpharm.org/trabajos/27/6/LAJOP_27_6_2_1_1R13OB3K90.pdf es
sedici.creator.person Regasini, Luis O. es
sedici.creator.person Cotinguiba, Fernando es
sedici.creator.person Siqueira, Janaina R. es
sedici.creator.person Bolzani, Vanderlan S. es
sedici.creator.person Silva, Dulce es
sedici.creator.person Furlan, Maysa es
sedici.creator.person Katto, Masuo J. es
sedici.subject.materias Farmacia es
sedici.subject.descriptores Farmacología es
sedici.subject.descriptores Antioxidantes es
sedici.subject.descriptores Plantas medicinales es
sedici.subject.descriptores Extractos de plantas es
sedici.subject.keyword antioxidant; DPPH; piper arboreum; piper tuberculatum; piperaceae; radical scavenging capacity es
sedici.description.fulltext true es
mods.originInfo.place Colegio de Farmacéuticos de la Provincia de Buenos Aires es
sedici.subtype Comunicacion es
sedici2003.identifier ARG-FARM-ART-0000001194 es
sedici.relation.journalTitle Latin American Journal of Pharmacy es
sedici.relation.journalVolumeAndIssue vol. 27, no. 6 es


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