Flavonoids with acetylated branched glycans and bioactivity of Tipuana tipu (Benth.) Kuntze leaf extract
| dc.Affiliation | October University for modern sciences and Arts (MSA) | |
| dc.contributor.author | S. Afifi, Manal | |
| dc.contributor.author | D. Elgindi, Omaima | |
| dc.contributor.author | O. Bakr, Reham | |
| dc.date.accessioned | 2020-02-23T08:50:42Z | |
| dc.date.available | 2020-02-23T08:50:42Z | |
| dc.date.issued | 2014 | |
| dc.description | MSA Google Scholar | en_US |
| dc.description.abstract | The new acetylated kaempferol tetraglycoside, kaempferol-3-O-[2″(4-acetylrhamnopyranosyl)-3″-galactopyranosyl] robinobioside (1), was isolated from the aqueous methanolic leaf extract of Tipuana tipu Benth. The known kaempferol 3-[2″-(4-acetyl-rhamnosyl)] robinobioside (2), kaempferol 3-O-2″-rhamnopyranosylrutinoside (3), rutin (4), kaempferol 3-O-rutinoside (5), kaempferol 3-O-glucopyranoside (6), kaempferol 3-O-galactopyranoside (7), quarcetin 3-O-glucopyranoside (8), kaempferol (9) and quercetin (10) together with the chlorogenic acid (11) were also isolated and characterised. Structures were established on the basis of chemical and spectroscopic analysis including 1H NMR, 13C NMR, 2D NMR and ESI-MS. The methanol extract exhibited moderate antioxidant activity, IC50 28.96 μg/mL, compared with ascorbic acid (1.83 μg/mL) and tertiary-butylhydroquinone (1.92 μg/mL). The methanol and chloroform extracts exhibited potent cytotoxic activity; the former was found to be active against larynx and liver cell lines, while the latter being active against intestine and liver cell lines. | en_US |
| dc.description.sponsorship | Taylor & Francis | en_US |
| dc.description.uri | https://www.scimagojr.com/journalsearch.php?q=24819&tip=sid&clean=0 | |
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| dc.identifier.doi | https://doi.org/10.1080/14786419.2013.847438 | |
| dc.identifier.other | https://doi.org/10.1080/14786419.2013.847438 | |
| dc.identifier.uri | https://t.ly/ZEKRx | |
| dc.language.iso | en | en_US |
| dc.publisher | Taylor & Francis | en_US |
| dc.relation.ispartofseries | Natural product research;Volume: 28 Issue: 4 Pages: 257-264 | |
| dc.subject | University of Tipuana tipu, new acetylated kaempferol tetraglycoside, antioxidant activity, cytotoxic activity | en_US |
| dc.title | Flavonoids with acetylated branched glycans and bioactivity of Tipuana tipu (Benth.) Kuntze leaf extract | en_US |
| dc.type | Article | en_US |