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LC–MS-Based Metabolomics Discriminates Premium from Standard Chilean cv. Cabernet Sauvignon Wines from Different Valleys

ABSTRACT:

Cabernet Sauvignon grapes in Chile, mainly grown between the 30 °S and 36 °S, account for more than 30% of Chilean wine production, and yield wines with different characteristics which influence their quality. The aim of this study was to apply an LC-MS based metabolomic protocol to investigate the quality differentiation in a sample set of monovarietal wines from eight valleys covering 679 km of the north-south extension. All samples were produced using a standardized red winemaking process and classified according to a company categorization in two major groups: premium and standard, and each group in two subcategories. The results pointed out that N-containing metabolites (mainly small peptides) are promising biomarkers for quality differentiation. Moreover, the premium wines were characterized by higher amounts of anthocyanins and other glycosylated and acetylated flavonoids, as well as phenolic acids; standard quality wines, on the other hand, presented stilbenoids and sulfonated catabolites of tryptophan and flavanols.

INSTRUMENT(S): Liquid Chromatography MS - negative - reverse phase, Liquid Chromatography MS - positive - reverse phase

PROVIDER: MTBLS2413 | MetaboLights | 2022-01-28

REPOSITORIES: MetaboLights

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			Action	DRS
	20190408_040_032_VAR_H_eg.raw.zip	Raw
	20190513_001_BLANK_NEG.raw.zip	Raw
	20190513_002_QC_NEG.raw.zip	Raw
	20190513_003_QC_NEG.raw.zip	Raw
	20190513_004_QC_NEG.raw.zip	Raw

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