Search results for "asteraceae"

showing 10 items of 209 documents

Volatile constituents of aerial parts ofCentaurea sibthorpii(Sect. Carduiformes, Asteraceae) from Greece and their biological activity

2008

The volatile constituents of the aerial parts of Centaurea sibthorpii [Sect. Carduiformes, Asteraceae] collected in Greece were extracted by hydrodistillation and analysed by GC and GC-MS. Altogether 63 components were identified. Fatty acids and sesquiterpenoidic compounds were the most abundant components in the oil. A study on the biological activity of the oil showed no action against Gram-positive and Gram-negative bacteria.

Chromatography GasCentaureaMicrobial Sensitivity TestsPlant ScienceGram-Positive BacteriaBiochemistryGas Chromatography-Mass SpectrometryAnalytical Chemistrylaw.inventionlawGram-Negative BacteriaCentaurea sibthorpii essential oil (E)-beta-farneseneBotanyOils VolatilePlant OilsEssential oilGreecebiologyFatty AcidsOrganic ChemistryBiological activityPlant Components AerialAsteraceaebiology.organism_classificationCentaureacyclosativene fatty acids antimicrobial activityNatural Product Research
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Volatile components from flower-heads of Centaurea nicaeensis All., C. parlatoris Helder and C. solstitialis L. ssp. schouwii (DC.) Dostál growing wi…

2008

The volatile constituents of the flowerheads of Centaurea nicaeensis All., C. parlatoris Helder and C. solstitialis L. ssp. schouwii (DC.) Dostal were extracted by hydrodistillation and analysed by GC and GC-MS. Altogether 113 components were identified. Fatty acids and hydrocarbons were the most abundant components in the oils. Caryophyllene and caryophyllene oxide were the main compounds of the sesquiterpene fraction. The study on the biological activity of the oils shows no significant activity.

Chromatography GasNonacosanePalmitic AcidCentaureaPlant ScienceFlowersMicrobial Sensitivity TestsSaccharomyces cerevisiaeSesquiterpeneBiochemistryGas Chromatography-Mass SpectrometryAnalytical Chemistrylaw.inventionchemistry.chemical_compoundFusariumlawBotanyCandida albicansOils VolatilePlant OilsEssential oilPolycyclic SesquiterpenesbiologyPlant ExtractsTerpenesCaryophylleneOrganic ChemistryBiological activityAsteraceaebiology.organism_classificationchemistryCaryophyllene oxideItalyCentaureaPseudomonas aeruginosaSesquiterpenesBacillus subtilisNatural product research
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Volatile constituents of the aerial parts of white salsify (Tragopogon porrifolius L., Asteraceae).

2010

Tragopogon porrifolius L. grows as a vegetable in southern Italy and all parts of it are edible. In the present study the volatile components of the aerial part are described. Gas chromatography and gas chromatography-mass spectrometry analysis showed the presence of 38 components in all. On the whole, the volatile fraction was constituted mainly by carbonylic compounds (24.6%), phenols (21.5%) and fatty acids and esters (19.7%). The most abundant compounds were 4-vinyl guaiacol (19.0%), hexadecanoic acid (17.9%), hexahydrofarnesylacetone (15.8%) and hentriacontane (10.7%).

Chromatography GasPalmitic AcidPlant ScienceAsteraceaeBiochemistryGas Chromatography-Mass SpectrometryAnalytical ChemistryTragopogonPalmitic acidchemistry.chemical_compoundBotanyPhenolsHentriacontaneTragopogon porrifolius Asteraceae white salsify Volatile constituents 4-vinyl guaiacol hexadecanoic acid hexahydrofarnesylacetonebiologyTerpenesOrganic ChemistryGuaiacolSettore CHIM/06 - Chimica OrganicaAsteraceaePlant Components Aerialbiology.organism_classificationchemistryGuaiacolGas chromatographyGas chromatography–mass spectrometryVolatilizationNatural product research
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Volatile components of Centaurea eryngiodes Lam. and Centaurea iberica Trev.var. hermonis Bois. Lam.,two Asteraceae growing wild in Lebanon.

2005

The volatile components of the flowerheads of Centaurea eryngioides Lam. and Centaurea iberica Trev. var. hermonis Boiss. Lam. were obtained by hydrodistillation and identified by GC and GC–MS. Altogether 91 components, mostly fatty acids and hydrocarbons, were identified.

Chromatography GasbiologyPlant compositionOrganic ChemistryPlant ScienceAsteraceaeAsteraceaebiology.organism_classificationBiochemistryGas Chromatography-Mass SpectrometryAnalytical Chemistrylaw.inventionCentaurealawBotanyCentaurea ibericaOils VolatilePlant OilsGas chromatographyGas chromatography–mass spectrometryLebanonMedicinal plantsEssential oilNatural product research
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Chemical Constituents ofGynura cusimbuaAerial Parts

2007

Abstract The essential oil isolated from the aerial parts of Gynura cusimbua was analyzed by GC and GC/MS. Forty-seven constituents totaling 91.92% of the oil were identified. The major constituents of the oil are myrcene (31.0%), β- phellandrene (12.43%), eugenol (6.34%), α-humulene (6.20%), dodecyl acrylate (6.09%), α-copaene (5.61%), phytol (3.21%), germacrene D (3.0%), cryptone (2.04%), 2,4-ditertbutylphenol (1.62%), α-pinene (1.33%), α-cadinene (1.26%), caryophyllene oxide (1.24%) and β-caryophyllene (1.08%).

ChromatographyTraditional medicinebiologyGeneral ChemistryAsteraceaebiology.organism_classificationlaw.inventionEugenolchemistry.chemical_compoundPhytolchemistrylawChemical constituentsMyrcenePhellandreneGynuraEssential oilJournal of Essential Oil Research
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Prove di coltivazione di Calendula (Calendula officinalis L.) in ambiente semi-arido

2008

Inside the family Asteraceae, Marigold is one of the most relevant species bearing some herbal interest. The evaluation of the bio-agronomical and yield response of the species to the field cropping conditions, especially when a low input cropping technique is applied, is the base for its full exploitation. With this objective, a long-term research activity has been started out by the DAAT (Department of Environmental and Land Agronomy) of the University of Palermo in the experimental farm “Sparacia” (Cammarata – AG – Sicily), performing observations on Marigold plants managed with a minimum recourse to external technical inputs (nor pesticides neither chemical weeding, and a light (50 kg h…

Composite flora mediterranea piante officinali coltivazioni a basso inputmedicinal and aromatic plantlow-input cropping techniquesMediterranean floraAsteraceaeSettore AGR/02 - Agronomia E Coltivazioni Erbacee
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Traditionally used Thai medicinal plants: in vitro anti-inflammatory, anticancer and antioxidant activities.

2009

In order to assess traditional Thai claims about the therapeutic potential of medicinal plants and to select plants for future phytochemical research, nine plant species with anti-inflammatory uses were selected from Thai textbooks and assessed for their in vitro anti-inflammatory, antiproliferative and antioxidant activities.Nuclear factor-kappaB (NF-kappaB) inhibitory effects in stably transfected HeLa cells were determined by luciferase assay, and effects on LPS-induced pro-inflammatory mediators prostaglandin E2 (PGE2), interleukin (IL)-6, IL-1beta, and tumour necrosis factor (TNF)alpha in primary monocytes were assessed by ELISA. Cytotoxic activities were examined against HeLa cells, h…

DPPHmedicine.drug_classCell SurvivalInterleukin-1betaAnti-Inflammatory AgentsPharmacognosyAsteraceaeTransfectionAnti-inflammatoryAntioxidantsDinoprostoneMonocytesHeLachemistry.chemical_compoundInhibitory Concentration 50MagnoliopsidaPhenolsDrug DiscoveryMedicineHumansGynuraPharmacologyPlants MedicinalTraditional medicinebiologyDose-Response Relationship Drugbusiness.industryInterleukin-6Plant ExtractsTumor Necrosis Factor-alphaNF-kappa Bbiology.organism_classificationThailandOroxylum indicumAntineoplastic Agents PhytogenicPolygonaceaeRhinacanthus nasutusPhytochemicalchemistryDrug Resistance NeoplasmBignoniaceaeLipid PeroxidationMedicine TraditionalInflammation MediatorsbusinessHeLa CellsJournal of ethnopharmacology
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Chemical composition and antimicrobial activity of the essential oils of some species of Anthemis sect. Anthemis (Asteraceae) from Sicily

2017

The chemical composition of the essential oils isolated from the aerial parts of Anthemis arvensis L. subsp. arvensis, Anthemis cretica subsp. messanensis (Brullo) Giardina & Raimondo and from flowers and leaves of Anthemis cretica subsp. columnae (Ten.) Frezén were determinated by GC–FID and GC–MS analyses. Torreyol (85.4%) was recognised as the main constituent of the Anthemis arvensis subsp. arvensis essential oil, while in the essential oils of Anthemis cretica subsp. messanensis, collected on the rock and cultivated in Hortus Botanicus Panormitanus, (E)-chrysanthenyl acetate (28.8 and 24.2% resp.), 14-hydroxy-α-humulene (8.1 and 5.3% resp.), santolina triene (8 and 5.8% resp.) and …

Drug Evaluation PreclinicalRaimondoAnthemis arvensisFlowersMicrobial Sensitivity TestsPlant Science01 natural sciencesBiochemistryGas Chromatography-Mass Spectrometryessential oillaw.inventionAnalytical Chemistrychemistry.chemical_compoundBridged Bicyclo CompoundsAnti-Infective Agentsantibacterial activitylawSantolinaBotanyOils VolatileAnthemisSettore BIO/15 - Biologia FarmaceuticaChemical compositionSicilyAnthemis arvensis L. subsp. arvensiEssential oiltorreyolBicyclic MonoterpenesPolycyclic Sesquiterpenesalpha-PineneEucalyptolbiology010405 organic chemistryOrganic ChemistryAnthemis cretica subsp. columnae (Ten.) FrezénAsteraceaebiology.organism_classificationCyclohexanols0104 chemical sciencesPlant Leaves010404 medicinal & biomolecular chemistryEucalyptolchemistryMonoterpenesAnthemis cretica subsp. messanensis (Brullo) Giardina &ampAnthemisSesquiterpenes
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Extension d'Ambrosia artemisiifolia L. dans le département de la Côte d'Or

2006

International audience

ENVAHISSANTE[SDV] Life Sciences [q-bio][SDE] Environmental SciencesAMBROISIEASTERACEAE[SDV]Life Sciences [q-bio][SDE]Environmental SciencesPLANTE INVASIVEAMBROSIA ARTEMISIIFOLIA L.ComputingMilieux_MISCELLANEOUS
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Genecological and isozyme studies in Senecio vernalis Waldst. & Kit. and S. vulgaris L. var. vulgaris (Asteraceae) from Central Europe and Israel

1995

Summary Genecological evidence and evidence obtained from an isozyme survey suggest a considerable amount of intraspecific differentiation in Senecio vernalis . Plants of this species from Israel were found to differ strikingly from those of C European (German) origin in most of the traits investigated, e.g., in the possession of pronounced seed dormancy, which seems to be governed by a single gene, a shorter life cycle, lack of rosette growth correlated with stem elongation prior to budding, a larger number of smaller capitula with fewer (disc) florets, and an ephemeral habit with plants only flowering soon after the first winter rains. Both accessions achieved a similar reproductive poten…

EcologybiologyPhylogenetic treeSenecio vulgarisSeed dormancyPlant ScienceAsteraceaebiology.organism_classificationIntraspecific competitionSenecio glaucusBotanyHabit (biology)Senecio vernalisEcology Evolution Behavior and SystematicsFlora
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