Szewczyk, Katarzyna, Krzaczek, Tadeusz, Łopatyński, Tomasz, Gawlik-Dziki, Urszula and Zidorn, Christian (2014) Flavonoids fromJovibarba globifera(Crassulaceae) rosette leaves and their antioxidant activity. Natural Product Research, 28 (19). pp. 1655-1658. DOI 10.1080/14786419.2014.938335.

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Abstract

Seven flavonoids new for the genus Jovibarba, kaempferol 1, kaempferol 3-O-galactopyranosyl-(1 → 2)-O-α-l-rhamnopyranoside 2, kaempferol 3-O-β-d-glucoside 3, kaempferol 3-O-α-l-rhamnopyranosyl-7-O-α-d-glucofuranosyl-(1 → 2)-O-α-l-rhamnopyranoside 4, kaempferol 3-O-β-d-glucopyranoside-7-O-α-l-rhamnopyranoside 5, kaempferol 3,7,4′-O-trimethyl ether 6 and quercetin 7, were isolated from fresh and dried leaves of J.ovibarba globifera subsp. globifera. The structures of these compounds were established by analysis of their spectroscopic (1H and 13C NMR) and spectrometric (MS) data, as well as by comparison of these with those reported in the literature. All of the flavonoids are reported for the first time from the investigated taxon. In addition the antioxidant activities in DPPH test of selected compounds were evaluated.

Document Type:	Article
Research affiliation:	Kiel University > Kiel Marine Science
Refereed:	Yes
Date Deposited:	29 Jun 2017 13:32
Last Modified:	01 Feb 2018 13:29
URI:	https://oceanrep.geomar.de/id/eprint/38686

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