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Sulfites and the wine metabolome.
Food Chem. 237, 106-113 (2017)
In a context of societal concern about food preservation, the reduction of sulfite input plays a major role in the wine industry. To improve the understanding of the chemistry involved in the SO2 protection, a series of bottle aged Chardonnay wines made from the same must, but with different concentrations of SO2 added at pressing were analyzed by ultrahigh resolution mass spectrometry (FT-ICR-MS) and excitation emission matrix fluorescence (EEMF). Metabolic fingerprints from FT-ICR-MS data could discriminate wines according to the added concentration to the must but they also revealed chemistry-related differences according to the type of stopper, providing a wine metabolomics picture of the impact of distinct stopping strategies. Spearman rank correlation was applied to link the statistically modeled EEMF components (parallel factor analysis (PARAFAC)) and the exact mass information from FT-ICR-MS, and thus revealing the extent of sulfur-containing compounds which could show some correlation with fluorescence fingerprints.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Chardonnay Wine ; Eemf ; Ft-icr-ms ; Sulfites ; Sulfur Metabolome; Mass-spectrometry; Sulfur-dioxide; White Wines; Organic-matter; Red Wines; Oxidation; Oxygen; Polyphenols; Classification; Hyperoxidation
ISSN (print) / ISBN
0308-8146
e-ISSN
1873-7072
Journal
Food Chemistry
Quellenangaben
Volume: 237,
Pages: 106-113
Publisher
Elsevier
Publishing Place
Amsterdam [u.a.] ; Jena
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit Analytical BioGeoChemistry (BGC)