In this study, 48 genuine absolute samples of Egyptian J. grandiflorum across three harvest seasons (2022–2024) were analysed using gas chromatography coupled to mass spectrometry and flame ionization detector (GC-MS/FID), alongside sensory evaluation to assess variations linked to harvest times. Identification of volatile compounds and sensory analysis revealed seasonal differences. Principal component analysis (PCA) further highlightedvolatile markers that differentiated sample subsets according to their seasonal profiles. Given jasmine absolute’s high commercial value, authenticity assessment is crucial to avoid possible adulteration. In this study, for the first time, enantioselective multidimensional GC coupled to isotope ratio mass spectrometry (MDGC-C-IRMS/qMS) was applied to jasmine absolute, enabling simultaneous determination of enantiomeric ratios and δ13C isotopic signatures within a single analytical workflow. Furthermore, typical δ13C isotopic signatures were registered for (-) and (+) linalool and indole across the seasons, providing potential novel markers for jasmine absolute authenticity, and quality control.
Integrated gas chromatographic strategies for comprehensive chemical characterization and authenticity assessment of Egyptian Jasminum grandiflorum L. absolute
Vento F.;Cucinotta L.;Trovato E.
;Sciarrone D.;Dugo P.;Mondello L.;Bonaccorsi I. L.
2026-01-01
Abstract
In this study, 48 genuine absolute samples of Egyptian J. grandiflorum across three harvest seasons (2022–2024) were analysed using gas chromatography coupled to mass spectrometry and flame ionization detector (GC-MS/FID), alongside sensory evaluation to assess variations linked to harvest times. Identification of volatile compounds and sensory analysis revealed seasonal differences. Principal component analysis (PCA) further highlightedvolatile markers that differentiated sample subsets according to their seasonal profiles. Given jasmine absolute’s high commercial value, authenticity assessment is crucial to avoid possible adulteration. In this study, for the first time, enantioselective multidimensional GC coupled to isotope ratio mass spectrometry (MDGC-C-IRMS/qMS) was applied to jasmine absolute, enabling simultaneous determination of enantiomeric ratios and δ13C isotopic signatures within a single analytical workflow. Furthermore, typical δ13C isotopic signatures were registered for (-) and (+) linalool and indole across the seasons, providing potential novel markers for jasmine absolute authenticity, and quality control.Pubblicazioni consigliate
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