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Weidner, L. ; Cannas, J.V.* ; Rychlik, M.* ; Schmitt-Kopplin, P.

Molecular characterization of cooking processes: A metabolomics decoding of vaporous emissions for food markers and thermal reaction indicators.

J. Agric. Food Chem. 71, 17442-17454 (2023)

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Open Access Green as soon as Postprint is submitted to ZB.

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Thermal processing of food plays a fundamental role in everyday life. Whereas most researchers study thermal processes directly in the matrix, molecular information in the form of non- and semivolatile compounds conveyed by vaporous emissions is often neglected. We performed a metabolomics study of processing emissions from 96 different food items to define the interaction between the processed matrix and released metabolites. Untargeted profiling of vapor samples revealed matrix-dependent molecular spaces that were characterized by Fourier-transform ion cyclotron resonance-mass spectrometry and ultra-performance liquid chromatography-mass spectrometry. Thermal degradation products of peptides and amino acids can be used for the differentiation of animal-based food from plant-based food, which generally is characterized by secondary plant metabolites or carbohydrates. Further, heat-sensitive processing indicators were characterized and discussed in the background of the Maillard reaction. These reveal that processing emissions contain a dense layer of information suitable for deep insights into food composition and control of cooking processes based on processing emissions.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords Ft-icr–ms ; Maillard Reaction ; Uplc–ms/ms ; Food Processing ; Head Space Sampling ; Metabolomics; Mass-spectrometry; Maillard Reaction; Organic Aerosol; Cross-linking; Hs-spme; Products; Spectra; Baking; Matter; Meat

ISSN (print) / ISBN 0021-8561

e-ISSN 1520-5118

Journal Journal of Agricultural and Food Chemistry

Quellenangaben Volume: 71, Issue: 45, Pages: 17442-17454

Publisher American Chemical Society (ACS)

Publishing Place 1155 16th St, Nw, Washington, Dc 20036 Usa

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Research Unit Analytical BioGeoChemistry (BGC)

Grants Bavarian Ministry of Economic Affairs, Regional Development and Energy