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- W2136774503 endingPage "1397" @default.
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- W2136774503 abstract "Detailed GC and GC-MS analyses of the essential oils and Et2 O extracts of two Xeranthemum species - X. cylindraceum and X. annum - resulted in the identification of 254 components, in total. Terpenoids constituted the major part of both X. cylindraceum and X. annum essential oils and extracts (51.8-65.7%, and 50.7%, resp.). Among the sesquiterpenoids, the extracts of both investigated taxa contained the guaianolide xerantholide, its 11,13-dihydro derivatives, and two additional sesquiterpene lactones: an eudesmanolide, 11,13-dihydroisoalantolactone, and a pseudoguaianolide, confertin. The last two lactones and both isomers of 11,13-dihydroxerantholide have not been previously detected in Xeranthemum species. The isolated extracts of X. cylindraceum and X. annum were tested in a broth microdilution assay against a panel of microorganisms. The tested extracts demonstrated significant antimicrobial inhibitory activity, ranging from 30 to 260 μg/ml, being most active against Bacillus cereus and Staphylococcus aureus, an important human pathogen, with MIC close in value to those of chloramphenicol. Chemotaxonomic significance of the sesquiterpene lactones' distribution in the taxa investigated in this study and those detected earlier in phylogenetically close species (up to the level of the tribe Cardueae) was also discussed." @default.
- W2136774503 created "2016-06-24" @default.
- W2136774503 creator A5006574877 @default.
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- W2136774503 creator A5025828339 @default.
- W2136774503 creator A5029412076 @default.
- W2136774503 creator A5073130662 @default.
- W2136774503 date "2015-09-01" @default.
- W2136774503 modified "2023-10-16" @default.
- W2136774503 title "Essential Oils and Diethyl Ether Extracts of Serbian<i>Xeranthemum cylindraceum</i>and<i>X. annum</i>: Chemical Composition, Antimicrobial Activity, and Chemotaxonomic Implications" @default.
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