Search results for "Monocyclic Sesquiterpenes"

showing 3 items of 3 documents

Volatile compounds of flowers and leaves of Sideritis italica (Miller)Greuter et Burdet (Lamiaceae), a plant used as mountain tea

2010

Sideritis italica (Miller) Greuter et Burdet (Lamiaceae), widely used in ethnopharmacological medicine, occurs in Southern Italy and Sicily. The phytochemical composition of the essential oils of S. italica flowers and leaves, harvested in Piano Battaglia (Sicily), was analysed by GC and GC-MS. Of the 51 compounds, 43 in the oil from flowers and 29 in the oil from leaves were identified. Kaur-15-ene (20.0%) was recognised as the main constituent of the oil from flowers, together with beta-cubebene (12.1%), beta-pinene (8.5%), (Z)-nuciferol (6.5%), tricyclene (4.5%) and alpha-bisabolol (4.0%). In the oil from leaves, p-methoxyacetophenone (26.0%) prevailed, as did hexadecanoic acid (21.3%), …

Chromatography GasNonanalPlant compositionPalmitatesPlant ScienceFlowersBiologyBiochemistryGas Chromatography-Mass SpectrometryAnalytical ChemistryPalmitic acidchemistry.chemical_compoundBridged Bicyclo CompoundsBotanyPhytochemical compositionOils VolatileChemical compositionBicyclic Monoterpenesbeta-PineneLamiaceaeTeaOrganic Chemistrybiology.organism_classificationMonocyclic SesquiterpenesPlant LeaveschemistrySideritisMonoterpenesLamiaceaeSesquiterpenes
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Inhibitory Activity and Chemical Characterization ofDaucus carotasubsp.maximusEssential Oils

2017

The essential oils (EOs) of green seeds from Daucus carota subsp. maximus growing wild in Pantelleria Island (Sicily, Italy) were characterized. EOs were extracted by steam distillation, examined for their inhibitory properties against food-borne Gram-positive and Gram-negative bacteria and analyzed for the chemical composition by gas chromatography (GC) and mass spectrometry (MS). Undiluted EOs showed a large inhibition spectrum against Gram-positive strains and also vs. Acinetobacter spp. and Stenotrophomonas maltophilia. The minimum inhibition concentration (MIC) was in the range 1.25 – 2.50 μl/ml for the most sensitive strains. The chemical analysis indicated that D. carota subsp…

Sesquiterpene0301 basic medicineSettore AGR/05 - Assestamento Forestale E SelvicolturaMonoterpeneChemical compositionMonoterpeneSettore MED/42 - Igiene Generale E Applicata01 natural sciencesBiochemistryEssential oilCarotollaw.inventionchemistry.chemical_compoundlawFood scienceChemical compositionInhibitory activitiebiologyChemistry (all)General MedicineAnti-Bacterial AgentsDaucus carotaStenotrophomonas maltophiliaSeedsMolecular MedicineSesquiterpenes030106 microbiologyBioengineeringPyrogallolGram-Positive BacteriaSesquiterpeneSteam distillation03 medical and health sciencesAnti-Bacterial AgentGram-Negative BacteriaBotanyChemical composition; Daucus carota; Essential oils; Foodborne bacteria; Inhibitory activities; Anti-Bacterial Agents; Daucus carota; Gram-Negative Bacteria; Gram-Positive Bacteria; Monoterpenes; Oils Volatile; Pyrogallol; Seeds; Sesquiterpenes; Bioengineering; Chemistry (all); Biochemistry; Molecular Medicine; Molecular BiologyOils VolatileMolecular BiologySeed010405 organic chemistryGeneral ChemistryFoodborne bacteriabiology.organism_classification0104 chemical sciencesMonocyclic SesquiterpeneschemistryMonoterpenesGas chromatographySettore AGR/16 - Microbiologia AgrariaDaucus carotaChemistry & Biodiversity
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Phytochemical Profile and Apoptotic Activity of Onopordum cynarocephalum.

2012

A phytochemical investigation of acetone and chloroform extracts of the aerial parts of Onopordum cynarocephalum Boiss. et Blanche was carried out. It led to the isolation of two new sesquiterpenes, the elemane aldehyde (2) and the eudesmane (11), together with 15 known compounds: two lignans (1 and 15) and 13 sesquiterpenes (3–10, 12–14, 16, 17). The structures were elucidated by spectroscopic analyses, especially 1D and 2D NMR spectra. The anti-growth effect against three human melanoma cell lines, M14, A375, and A2058, of the different extracts and compounds of O. cynarocephalum was also investigated. Among them, the chloroform extract exhibited the strongest biological activity, while t…

StereochemistryPharmaceutical ScienceApoptosisDNA FragmentationLignansAnalytical Chemistrychemistry.chemical_compoundInhibitory Concentration 50cytotoxic activity Onopordum cynarocephalum Boiss. et BlancheCell Line TumorDrug DiscoveryHumansSesquiterpenes EudesmaneHSP70 Heat-Shock ProteinsFuransArctigeninCell ProliferationPharmacologyLignanChloroformPlants MedicinalbiologyDose-Response Relationship DrugMolecular StructureCaspase 3Plant ExtractsOrganic ChemistryOnopordumPTEN PhosphohydrolaseBiological activityPlant Components AerialAntineoplastic Agents PhytogenicEnzyme assayMonocyclic SesquiterpenesComplementary and alternative medicinePhytochemicalchemistryApoptosisbiology.proteinMolecular MedicineDNA fragmentationSesquiterpenes
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