0000000000372735

AUTHOR

Donatella Aiello

showing 3 related works from this author

Study of the coordination of ortho-tyrosine and trans-4-hydroxyproline with aluminum(III) and iron(III)

2018

Abstract The coordination of amino acids ortho-tyrosine (o-Tyr, 1) and trans-4-hydroxyproline (HPro, 2) with the biologically important trivalent metal ions Al(III) and Fe(III) in aqueous solution was investigated by 1H and 13C high resolution NMR, Laser Desorption Mass Spectrometry (LD-MS), and MS/MS experiments. Potentiometric measurements were also carried out in 0.16 M NaCl, 37 °C, by varying the pH between 2.0 and 3.5. NMR spectra recorded on aqueous solutions of amino acids 1 or 2 in the presence of the appropriate trivalent metal chloride suggested that binding of Al(III) and Fe(III) involved the COOH and NH2 functional groups of ligands, while their phenolic and alcoholic groups whi…

Materials Chemistry2506 Metals and AlloysAtomic and Molecular Physics and OpticMetal ions in aqueous solutionPotentiometric titrationCondensed Matter Physic010402 general chemistry01 natural sciencesMetalMaterials ChemistrySettore CHIM/01 - Chimica AnaliticaPhysical and Theoretical ChemistrySpectroscopySpectroscopychemistry.chemical_classificationAqueous solution010405 organic chemistryChemistryElectronic Optical and Magnetic MaterialCondensed Matter PhysicsAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic MaterialsAmino acidNMR spectra databasevisual_artvisual_art.visual_art_mediumStoichiometryNuclear chemistry
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Edible Insects an Alternative Nutritional Source of Bioactive Compounds: A Review

2023

Edible insects have the potential to become one of the major future foods. In fact, they can be considered cheap, highly nutritious, and healthy food sources. International agencies, such as the Food and Agriculture Organization (FAO), have focused their attention on the consumption of edible insects, in particular, regarding their nutritional value and possible biological, toxicological, and allergenic risks, wishing the development of analytical methods to verify the authenticity, quality, and safety of insect-based products. Edible insects are rich in proteins, fats, fiber, vitamins, and minerals but also seem to contain large amounts of polyphenols able to have a key role in specific bi…

Settore CHIM/10 - Chimica Degli AlimentiOrganic ChemistryPharmaceutical ScienceSettore CHIM/12 - Chimica Dell'Ambiente E Dei Beni Culturaliphenols and flavonoidAnalytical Chemistrypolyphenols bioactivityChemistry (miscellaneous)Drug DiscoveryMolecular MedicineSettore CHIM/01 - Chimica Analiticapolyphenols Folin–Ciocalteu methodPhysical and Theoretical ChemistryInsect-based foodMolecules
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Determination of ketosteroid hormones in meat by liquid chromatography tandem mass spectrometry and derivatization chemistry.

2015

A method for the determination and quantification of ketosteroid hormones in meat by mass spectrometry, based on the derivatization of the carbonyl moiety of steroids by O-methylhydroxylamine, is presented. The quantitative assay is performed by means of multiple-reaction-monitoring (MRM) scan mode and using the corresponding labelled species, obtained by reaction with d 3-methoxylamine, as internal standard. The accuracy of the method was established by evaluating artificially spiked samples, obtaining values in the range 90-110%. Recovery tests were performed on blank matrix samples spiked with non-natural steroids including trenbolone and melengestrol acetate. The latter experiment revea…

Multiple reaction monitoringChromatographyMeatMass spectrometrySelected reaction monitoringKetosteroidMass spectrometrySolid-phase microextractionKetosteroidsBiochemistryAnalytical ChemistryMatrix (chemical analysis)chemistry.chemical_compoundTrenbolonechemistryLiquid chromatography–mass spectrometryTandem Mass SpectrometryKetosteroidMethoxylamineUHPLCmedicineDerivatizationSolid Phase Microextractionmedicine.drugAnalytical and bioanalytical chemistry
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