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dc.contributor.authorEl-Toumy, Sayed A.-
dc.contributor.authorEl Souda, Sahar S.-
dc.contributor.authorMohamed, Tahia K.-
dc.contributor.authorBrouard, Ignacio-
dc.contributor.authorBermejo, Jaime-
dc.date.accessioned2019-10-25T08:28:19Z-
dc.date.available2019-10-25T08:28:19Z-
dc.date.issued2012-10-01-
dc.identifierdoi: 10.1016/j.carres.2012.07.020-
dc.identifierissn: 0008-6215-
dc.identifiere-issn: 1873-426X-
dc.identifier.citationCarbohydrate Research 360: 47-51 (2012)-
dc.identifier.urihttp://hdl.handle.net/10261/193404-
dc.description.abstractThe methanolic extract of the leaves of Cassia roxburghii DC., was investigated for its anthraquinone glycosides and antioxidant activity. Two new anthraquinone glycosides named emodin 1-O-β-d-glucopyranosyl-(1→2)- glucopyranoside (1) and aloemodin 8-O-β-d-glucopyranosyl-(1→6)- glucopyranoside (2) along with aloemodin 8-O-β-d-glucopyranoside (3), emodin (4), aloemodin (5) and one flavonoid, quercetin-3-O-α-l- rhamnopyranoside, were isolated from the leaves of C. roxburghii. Structures of the isolated compounds were established by UV, HRESI-MS, and 1D/2D 1H/ 13C NMR spectroscopy. The total extract and some isolated compounds were determined against DPPH (2,2-diphenyl-1-(2,4,6- trinitrophenyl)hydrazinyl radical, for their free radical scavenging activity, the total alcoholic extract showed strong antioxidant activity while the two new compounds showed weak antioxidant activity.-
dc.publisherElsevier-
dc.relation.isversionofPostprint-
dc.rightsclosedAccess-
dc.subjectFree radicals scavenging activity-
dc.subjectAnthraquinones-
dc.subjectCassia roxburghii-
dc.titleAnthraquinone glycosides from Cassia roxburghii and evaluation of its free radical scavenging activity-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1016/j.carres.2012.07.020-
dc.relation.publisherversionhttps://doi.org/10.1016/j.carres.2012.07.020-
dc.date.updated2019-10-25T08:28:20Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.relation.csic-
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