0000000001026630

AUTHOR

Basem Kanawati

showing 2 related works from this author

Attachment of chloride anion to sugars: mechanistic investigation and discovery of a new dopant for efficient sugar ionization/detection in mass spec…

2012

International audience; A new method for efficient ionization of sugars in the negative-ion mode of electrospray mass spectrometry is presented. Instead of using strongly hydrophobic dopants such as dichloromethane or chloroform, efficient ionization of sugars has been achieved by using aqueous HCl solution for the first time. This methodology makes it possible to use hydrophilic dopants, which are more appropriate for chromatographic separation techniques with efficient sugar ionization and detection in mass spectrometry. The interaction between chloride anions and monosaccharides (glucose and galactose) was studied by DFT in the gas phase and by implementing the polarizable continuum mode…

AnionsSpectrometry Mass Electrospray Ionization[ SDV.AEN ] Life Sciences [q-bio]/Food and NutritionInorganic chemistryAnalytical chemistryCarbohydrates010402 general chemistryMass spectrometry01 natural sciencesChloridePolarizable continuum modelCatalysisMass SpectrometryAnthocyaninschemistry.chemical_compoundChloridesIonizationwine analysismedicineMonosaccharideAnion bindingchemistry.chemical_classificationChloroformAqueous solutionMolecular Structure010401 analytical chemistryOrganic ChemistryMonosaccharidesGeneral Chemistry0104 chemical sciencesanalytical methodschemistrydensity functional calculations[SDV.AEN]Life Sciences [q-bio]/Food and Nutritionmedicine.drugChemistry (Weinheim an der Bergstrasse, Germany)
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Foodomics assessed by Fourier transform mass spectrometry

2019

Abstract With its ultrahigh resolution power and excellent mass accuracy, Fourier transform ion cyclotron resonance mass spectrometry is the perfct tool to analyze the “foodome” as the set of all polar small molecular compounds present in an investigated food sample. We present here selected applications of this technique in unraveling the metabolome in complex foods (thermally affected, fermentation products, distillates) such exemplified with Maillard reaction products or with wines and spirits. Technical considerations for high resolution mass analyzers are provided from a practical point of view. Moreover, aspects of food safety and nutritional quality are covered by presenting applicat…

Maillard reactionsymbols.namesakeChromatographyUltrahigh resolutionFoodomicsChemistryMetabolomesymbolsHigh resolutionFood sampleNutritional qualityFourier transform ion cyclotron resonance
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