Search results for " monoterpenes."

showing 3 items of 43 documents

Determination of terpene alcohols in Sicilian Muscat wines by HS-SPME-GC-MS.

2013

Muscat is a grape family used to obtain several sweet, aromatic white dessert wines common in the Mediterranean area. Currently, three Sicilian cultivars (all classified DOC) are known: 'Moscato di Siracusa' the oldest and very rare today; 'Moscato di Noto', a modern derivative of the first and finally 'Moscato di Pantelleria', now the most common. This study concerns the volatile profile of 15 different Sicilian Muscat wines produced in different years using HS-SPME-GC-MS. In particular, four fundamental terpene alcohols (linalool, geraniol, nerol and citronellol) were considered. The principal aim was to study the evolution of aromatic compounds in wine during aging, and the information o…

Settore CHIM/10 - Chimica Degli AlimentiAcyclic MonoterpenesHS-SPME-GC-MSWinePlant ScienceBiochemistryGas Chromatography-Mass SpectrometryAnalytical ChemistryTerpenechemistry.chemical_compoundLinaloolBotanyNerolFood scienceSicilian Muscat wineCitronellolWineTerpenesOrganic Chemistrylanguage.human_languagechemistrylanguageMonoterpenesGas chromatography–mass spectrometrySicilianGeraniolNatural product research
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Composition of essential oil of lemon thyme (Thymus × citriodorus) at different hydrodistillation times.

2018

Distillation time can both to optimise the production and to engineer the composition of essential oil in essential oil bearing plants. Purpose of this study was to evaluate the effect of duration of hydrodistillation on composition of essential oil of Thymus × citriodorus, the natural source of commercially important geraniol and citral, a component with valuable biological properties. Essential oils were isolated by hydrodistillation at different distillation times and analysed by GC/MS analytical methods. Increase in percentage of essential oil during all hydrodistillation time gradient was uneven. Elongation of hydrodistillation time decreased percentages of monoterpenes but increased p…

Time FactorsAcyclic MonoterpenesPlant ScienceCitral01 natural sciencesBiochemistryessential oilgeranialGas Chromatography-Mass Spectrometrylaw.inventionAnalytical ChemistryThymus Plantchemistry.chemical_compoundlawBiological propertyOils VolatileThymus citriodorusFood scienceSettore BIO/15 - Biologia FarmaceuticageraniolDistillationEssential oilhydrodistillation timeDistillation010405 organic chemistryChemistrynerolTerpenesOrganic ChemistrySettore CHIM/06 - Chimica Organica0104 chemical sciencesThymus × citriodoru010404 medicinal & biomolecular chemistryneralNatural sourceMonoterpenesComposition (visual arts)SesquiterpenesGeraniolNatural product research
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Behaviour-modifying compounds for management of the red palm weevil (Rhynchophorus ferrugineus Oliver).

2014

BACKGROUND: Populations of red palm weevil (RPW), a severe pest of palms in Mediterranean countries, might be limited by semiochemical-based behaviour-disrupting methods. We evaluated the effects of electroantennogram (EAG)-active plant volatiles on the behaviour of RPWs from Italy and Israel. In field experiments, α-pinene, citronellol, geraniol, citral and 1-octen-3-ol were tested for their ability to disrupt attraction to pheromone-kairomone and molasses baited traps. Those that were found to be disruptive in the field were evaluated in a laboratory choice bioassay in individual cages for their effect on RPW female feeding and oviposition. RESULTS: Field experiments showed reduced captur…

WeevilArthropod AntennaeMaleOctanolsGeraniolAcyclic MonoterpenesOvipositionPheromoneMonoterpeneArecaceaeInsect ControlPheromonesAnimalsAntifeedant1-octen-3-olIsraelPush-pullBicyclic MonoterpenesBehavior AnimalAnimalTerpenesFeeding BehaviorDeterrentElectrophysiological PhenomenaSettore AGR/11 - Entomologia Generale E ApplicataItalyTerpeneInsect Scienceα-pineneMonoterpenesWeevilsFemaleAgronomy and Crop ScienceOctanolPest management science
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