IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Targeted and untargeted 1H-NMR analysis for sparkling wine’s authenticity

Targeted and untargeted 1H-NMR analysis for sparkling wine’s authenticity

Abstract

Studies on wineomics (wine’s metabolome) have increased considerably over the last two decades. Wine results from many environmental, human and biological factors leading to a specific metabolome for each terroir. NMR metabolomics is a particularly effective tool for studying the metabolome since it allows the rapid and simultaneous detection of major compounds from several chemical families.1 Quantitative NMR has already proven its effectiveness in monitoring the authenticity of still wines.2 In this study, we wanted to know if these approaches could be effective to guarantee sparkling wine authenticity.More than 100 French sparkling wines from different regions (i.e. Champagne, Crémant de Bordeaux, Crémant d’Alsace and Crémant de Bourgogne) were analysed by targeted and untargeted 1H-NMR approaches. The collected data were statistically processed by principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA) and partial orthogonal least squares discriminant analysis (OPLS-DA). Cross permutation tests and ANOVAs were performed to validate the results.Our results show that 1H-NMR metabolomics discriminates between protected designations of origin. Targeted and untargeted approaches made it possible to establish a profile for each appellation and to determine the chemical compounds significantly involved in the discrimination. Untargeted analysis allows discriminating champagne label of quality.  These analyses highlighted notions of traceability and quality to discriminate appellations of origin from sparkling wines.

DOI:

Publication date: June 27, 2022

Issue: IVAS 2022

Type: Poster

Authors

Le Mao Ines1, Da Costa Gregory1, Bautista Charlyne1 and Richard Tristan1

1UMR 1366, Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Science Agro, OENO, ISVV

Contact the author

Keywords

NMR, metabolomics, sparkling wines

 

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Sensory differences of Pinot noir wines from willamette valley subregions

Wines from different regions or AVAs have been found to have sensory differences, as these areas are typically located quite far apart and have dramatically different climates, soils and other terroir factors.
Read More

Application of remote sensing by unmanned aerial vehicles to map variability in Ontario Riesling and Cabernet Franc vineyards

The objective of this investigation was to verify usefulness of proximal sensing technology and unmanned aerial vehicles (UAVs) for mapping variables e.g., vine size (potential vigor), soil and vine water status, yield, fruit composition, and virus incidence in vineyards.

Read More

Do high temperature extremes impact berry tannin composition?

Flavonoids, including flavonols, anthocyanins, and tannins, are
important contributors to grape and wine quality, and their biosynthesis is strongly influenced by bunch microclimate. While the synergistic effect of light and temperature has been intensively examined on flavonoids in relation to bunch exposure, studies targeting the sole effect of high temperature have mostly
focused on anthocyanins during the ripening period. With tannin biosynthesis starting around flowering, heatwaves occurring earlier in the grape growing season could be critical. Only a few papers report the impact of temperature on tannin synthesis and accumulation; to date, none have examined the effect of high temperature extremes which, in the context of climate change, relates to increases in heatwave intensity.

Read More

Techniques for sunburn reduction in bunches in Vitis vinifera L. cv. Graciano

Sunburn results from a combination of excessive photosynthetically active radiation (PAR) and UV radiation and temperature that can be exacerbated by other stress factors such as water deficit. Sunburn is a physiological disorder that affects the visual and organoleptic properties of grapes. The appearance of brown and necrotic spots severely affects the commercial value of the fruit, and in extreme cases, significantly decreases yield. This damage occurs with some frequency in sensitive varieties such as Graciano.

Read More

Geopedological and climatic zoning of northern Malaga vineyards region: Fuente de Piedra, Humilladero and Mollina (southern Spain)

The vineyards placed in the municipal areas of Fuente de Piedra, Humilladero and Mollina constitute a wine-growing important area of the “Zona Norte” of the province of Málaga.

Read More