0000000000211080

AUTHOR

Antonella Saija

showing 5 related works from this author

Phytochemical profiles, phototoxic and antioxidant properties of eleven Hypericum species - A comparative study

2018

Hypericum is one out of the nine genera belonging to the botanical family Clusiaceae Lindl (syn. Hypericaceae Juss.; APG III, 2009). The genus contains 484 species spread worldwide, one of which, Hypericum perforatum, is largely used in folk medicine. The aim of this study was to evaluate the chemical composition, along with the antioxidant and phototoxic activity, of 11 Hypericum species grown in Sicily (H. perforatum L., H. aegypticum L., H. androsaemum L., H. calycinum L., H. hircinum L., H. hirsutum L., H. montanum L., H. patulum Thunb., H. perfoliatum L., H. pubescens Boiss., H. tetrapterum Fr.). Samples of flowering tops collected from these Hypericum species were extracted and analys…

0106 biological sciencesDPPHHyperforinAntioxidants Hyperforin Hypericin Hypericum species (Clusiaceae Lindl.) Phototoxicity; PolyphenolsPhytochemicalsHypericinFlowersPlant ScienceHorticultureHypericaceae01 natural sciencesBiochemistryAntioxidantsMass SpectrometryPhototoxicityMicechemistry.chemical_compoundPicratesSpecies SpecificityHypericum species (Clusiaceae Lindl.) Phototoxicity Polyphenols Hypericin Hyperforin AntioxidantsAnimalsHypericum species (Clusiaceae Lindl.)Molecular BiologyChromatography High Pressure LiquidbiologyTraditional medicine010405 organic chemistryChemistryBiphenyl CompoundsPolyphenolsHypericum perforatumGeneral MedicineFibroblastsbiology.organism_classificationSettore AGR/02 - Agronomia E Coltivazioni Erbacee0104 chemical sciencesHypericinHyperforinPhotochemotherapyPhytochemicalPolyphenolNIH 3T3 CellsAntioxidantReactive Oxygen SpeciesHypericumHypericumDermatitis Phototoxic010606 plant biology & botany
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Phenolic Profiles, Antioxidant and Anti-Inflammatory Activities of Hydrodistillation Wastewaters from Five Lamiaceae Species

2022

Distillation is the most widely used method to obtain an essential oil from plant material. The biomass used in the process is returned as a solid residue together with variable amounts of water rich in water-soluble compounds, which currently are not addressed to any further application. The scope of this work was to evaluate the phytochemical composition of wastewaters coming from hydrodistillation (DWWs) of five aromatic plants belonging to the Lamiaceae family, and to assess their in vitro antioxidant and anti-inflammatory activities. The phenolic profiles of the DWWs were determined by HPLC-DAD and HPLC-ESI/MS. Free radical scavenging ability, oxygen radical antioxidant capacity and su…

radical scavengingrosmarinic aciddistillation wastes; phenolic profile; rosmarinic acid; intestinal inflammation; anti-inflammatory; radical scavenging; antioxidantantioxidantLamiaceaePlant ExtractsSettore AGR/13 - Chimica AgrariaPhytochemicalsOrganic ChemistryAnti-Inflammatory AgentsWaterPharmaceutical ScienceWastewaterphenolic profileAntioxidantsSettore AGR/02 - Agronomia E Coltivazioni ErbaceeAnalytical ChemistryPhenolsChemistry (miscellaneous)intestinal inflammationDrug DiscoveryMolecular Medicinedistillation wastePhysical and Theoretical Chemistryanti-inflammatoryMolecules
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Biomolecular characterization of wild sicilian oregano: phytochemical screening of essential oils and extracts, and evaluation of their antioxidant a…

2013

An extensive survey of wild Sicilian oregano was made. A total of 57 samples were collected from various sites, followed by taxonomic characterization from an agronomic perspective. Based on morphological and production characteristics obtained from the 57 samples, cluster analysis was used to divide the samples into homogeneous groups, to identify the best biotypes. All samples were analyzed for their phytochemical content, applying a cascade-extraction protocol and hydrodistillation, to obtain the non volatile components and the essential oils, respectively. The extracts contained thirteen polyphenol derivatives, i.e., four flavanones, seven flavones, and two organic acids. Their qualitat…

PolyphenolOriganum species; Essential oils; Polyphenols; Antioxidant activityAntioxidantmedicine.medical_treatmentBioengineeringBioagronomic characterizationBiochemistryFlavonesEssential oilAntioxidantsGas Chromatography-Mass SpectrometryMass Spectrometrychemistry.chemical_compoundOreganoAntioxidant activityOriganummedicineChemical groupsOils VolatileCluster AnalysisBiomassMolecular BiologyThymolSicilyChromatography High Pressure Liquidchemistry.chemical_classificationLamiaceaeChromatographyPolyphenolsGeneral ChemistryGeneral MedicineFlavonesSettore AGR/02 - Agronomia E Coltivazioni ErbaceechemistryPhytochemicalHomogeneousPolyphenolFlavanonesMolecular MedicineGas chromatography–mass spectrometryChemistrybiodiversity
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Wild Sicilian Rosemary: Phytochemical and Morphological Screening and Antioxidant Activity Evaluation of Extracts and Essential Oils

2015

To identify the best biotypes, an extensive survey of Sicilian wild rosemary was carried out by collecting 57 samples from various sites, followed by taxonomic characterization from an agronomic perspective. All the biotypes collected were classified as Rosmarinus officinalis L. A cluster analysis based on the morphological characteristics of the plants allowed the division of the biotypes into seven main groups, although the characteristics examined were found to be highly similar and not area-dependent. Moreover, all samples were analyzed for their phytochemical content, applying an extraction protocol to obtain the nonvolatile components and hydrodistillation to collect the essential oil…

MonoterpenePhytochemicalsAntioxidant activity Cluster Analysis (CA) Essential oils Rosmarinus officinalis SicilyBioengineeringBiochemistryFlavonesAntioxidantsRosmarinusBorneolchemistry.chemical_compoundCamphorAntioxidant activityCluster Analysis (CA)Rosemary; Lamiaceae; Bioagronomic characterization; Essential oil; Polyphenols; Antioxidant activity.LedumOils VolatileWild rosemary biotyoeSicilyMolecular Biologychemistry.chemical_classificationChromatographyMolecular StructurebiologyPlant Extractsagronomic evaluationGeneral ChemistryGeneral Medicinebiology.organism_classificationSettore AGR/02 - Agronomia E Coltivazioni ErbaceePhytochemicalchemistryEssential oilsOfficinalisRosmarinus officinalisMolecular MedicineCamphenephytochemical evaluationChemistry & Biodiversity
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Phytochemical, ecological and antioxidant evaluation of wild Sicilian thyme: Thymbra capitata (L.) Cav.

2016

In a broad survey conducted throughout the Sicily region, 45 different sites were identified where thyme grows wild. All the biotypes collected were classified as Thymbra capitata (L.) Cav. (syn. Thymus capitatus (L.) Hoffmanns. & Link). Cluster analysis based on the main morphological characteristics of the plant led to the division of the biotypes into 3 major groups. All samples were analyzed for their secondary phytochemical metabolites identified in the extracts and the essential oils. LC-UV-DAD/ESI-MS and GC-FID/GC-MS have been applied to characterize the extracts and the essential oils, respectively. In the extracts, 15 flavonoid derivatives with taxifolin-di-O-glucoside and thymusin…

Antioxidantmedicine.medical_treatmentPhytochemicalsBioengineering01 natural sciencesBiochemistryAntioxidantslaw.inventionchemistry.chemical_compoundfoodlawBotanyAntioxidant activity Bioagronomic characterization Essential oil; Lamiaceae Polyphenols Thyme (Thymbra capitata (L.) Cav.)Oils VolatilemedicineCarvacrolFood scienceMolecular BiologyEssential oilLamiaceaeMolecular Structurebiology010405 organic chemistryRosmarinic acidGeneral ChemistryGeneral Medicinebiology.organism_classificationfood.foodSettore AGR/02 - Agronomia E Coltivazioni Erbacee0104 chemical sciences010404 medicinal & biomolecular chemistryPhytochemicalchemistryPolyphenolThyme (Thymbra capitata (L.) CAV.) Lamiaceae Bioagronomic characterization Essential oil Polyphenols Antioxidant activities.MonoterpenesCymenesMolecular MedicineThymus capitatusLamiaceaeThyme (Thymbra capitata (L.) Cav.); Lamiaceae; Bioagronomic characterization; Essential oil; Polyphenols; Antioxidant activity.
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