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Talanta

Title:		Monitoring alkyl pyrazines in roasted hazelnuts by SHS-GC-IMS: IMS response assessment and standardization
Author(s):		Mazzucotelli M; Khomenko I; Betta E; Cetto I; Farneti B; Gabetti E; Cavallero A; Aprea E; Biasioli F;
Address:		"Research and Innovation Center, Fondazione Edmund Mach, San Michele All'Adige, Trento, Italy; Center for Agriculture Food Environment C3A, University of Trento, San Michele All'Adige, Trento, Italy. Research and Innovation Center, Fondazione Edmund Mach, San Michele All'Adige, Trento, Italy. Electronic address: iuliia.khomenko@fmach.it. Research and Innovation Center, Fondazione Edmund Mach, San Michele All'Adige, Trento, Italy. Soremartec Italia Srl, Alba, Cuneo, Italy"
Journal Title:		Talanta
Year:		2023
Volume:		20230417
Issue:
Page Number:		124568 -
DOI:		10.1016/j.talanta.2023.124568
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"Gas chromatography coupled with ion mobility spectrometry (IMS) is an analytical tool which is rapidly becoming widespread in the analysis of food volatiles. Despite this increasing popularity, an assessment of the IMS response for several flavor compound classes is not yet available. This study focuses on alkyl pyrazines and their determination in roasted hazelnut pastes. These Maillard reaction products are crucial to determine the aromatic profile of roasted foods and are suitable markers for industrial roasting monitoring. The instrumental response of 8 alkyl pyrazines was studied using a model matrix and a matrix matching approach. The results showed a relevant effect of the pyrazine ring substitution pattern on the concentration-response curve trends, highlighting that an external standardization of the IMS response is required to make possible relative abundance comparisons between analytes. A response standardization was therefore developed and applied to determine alkyl pyrazines in samples with different roasting intensity and geographical and botanical origin"
Keywords:		Gas Chromatography-Mass Spectrometry/methods *Corylus/chemistry Pyrazines/analysis Ion Mobility Spectrometry *Volatile Organic Compounds/analysis Alkyl pyrazines Detector response Hazelnut Roasting Shs-gc-ims Standardization;
Notes:		"MedlineMazzucotelli, Maria Khomenko, Iuliia Betta, Emanuela Cetto, Irene Farneti, Brian Gabetti, Elena Cavallero, Andrea Aprea, Eugenio Biasioli, Franco eng Netherlands 2023/04/24 Talanta. 2023 Jul 1; 259:124568. doi: 10.1016/j.talanta.2023.124568. Epub 2023 Apr 17"