Influence of the malolactic fermentation on wine metabolomics or drastic metabolomics changes due to malolactic fermentation
It is well known that lactic acid bacteria modify the wine volatile compound. However, very few data are available regarding metabolite changes that occurred during the malolactic fermentation (MLF).
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.
Molecular characterization of wines nucleophilic potential by ultra-performance liquid chromatography high resolution mass spectrometry
The knowledge about the molecular fraction associated to white wines oxidative stability is still poorly understood.
A new graphical interface as a tool to integrate data from GC-MS and UPLC-MS-QTOF: new compounds related with port wine aging
Port wine value is related to its molecular profile resulting from the changes occurring during the ageing period. It is of empirical knowledge that the style is greatly affected by the oxidation regimens, i.e. bottle versus barrel storage
Q-NMR measurements: quantitative analysis of wine composition applied to Bordeaux red wines authenticity control
Traceability of wine is today a consumer demand and a scientific challenge. The methods of analysis must be able to control three fundamental parameters: the geographical origin, the grape varieties, and the vintage.
Greffadapt: a relevant experimental vineyard to speed up the selection of grapevine rootstocks
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Fully automated non-targeted GC-MS data analysis
Non-targeted analysis is applied in many different domains of analytical chemistry such as metabolomics, environmental and food analysis. In contrast to targeted analysis, non-targeted approaches take information of known and unknown compounds into account, are inherently more comprehensive and give a more holistic representation of the sample composition.
Evaluation of the agronomic performance of cvs. Syrah and tempranillo when grafted on a new series of rootstocks developed in spain
The choice of an adequate rootstock is a key tool to improve the performance of grapevine varieties in different ‘terroirs’, as rootstocks confer adaptation to soil characteristics
LC-MS based metabolomics and target analysis to study the chemical evolution of wines stored under different redox conditions
Oxygen is a key player in oenology, since its effects can be a blessing, benefiting wine quality, or a curse causing irreversible damage.
The myth of the universal rootstock revisited: assessment of the importance of interactions between scion and rootstock
Aim‐ Rootstocks provide protection against soil borne pests and are a powerful tool to manipulate growth, fruit composition and wine quality attributes
D-wines: use of LC-MS metabolomic space to discriminate italian mono-varietal red wines
Studying wine metabolome through multiple targeted methods is complicated and limitative; since grapes, yeasts, bacteria, oxygen, enological techniques and wine aging collaborate to deliver one of the richest metabolomic fingerprint.
The state-of-the-art of grapevine biotechnology and new breeding technologies (NBTS)
The manipulation of the genetic basis controlling grapevine adaptation and phenotypic plasticity can be performed either by classical genetics or biotechnologies.
Can wine composition predict quality? A metabolomics approach to assessing Pinot noir wine quality as rated by experts
The perception of wine quality is determined by the assessment of multiple sensory stimuli, including aroma, taste, mouthfeel and visual aspects. With so many different parameters contributing to the overall perception of wine quality, it is important to consider the contribution of all metabolites in a wine when attempting to relate composition to quality.
Integrated multiblock data analysis for improved understanding of grape maturity and vineyard site contributions to wine composition and sensory domains
Much research has sought to define the complex contribution of terroir (varieties x site x cultural practices) on wine composition. This investigation applied recent advances in chemometrics to determine relative contributions of vine growth, berry maturity and site mesoclimate to wine composition and sensory profiles of Shiraz and Cabernet Sauvignon for two vintages.
How much does the soil, climate and viticultural practices contribute to the variability of the terroir expression?
When considering the application of a systemic approach to assess the intrinsic complexity of agricultural production, the following question immediately arises
When organic chemistry contributes to the understanding of metabolism mechanisms
Many compounds of interest in wine are difficult to analyze since they are present in very small quantities or they are unstable. The need for reliable data led scientists to develop complex method in order to overcome the analytical difficulties and provide accurate quantitative data for grape or wine characterization.
Oenological tannins to prevent Botrytis cinerea damage: reduction of laccase activity
Oenological tannins are classified as hydrolysable and condensed tannins. Their use in winemaking is only authorized, to facilitate wine fining. Nevertheless, tannins could also be used to prevent laccase effects.
Effect of topography on vine evapotranspiration and water status in hillside vineyards
Many winegrape regions have hillside vineyards, where vine water use is affected by vine age, density and health, canopy size, row orientation, irrigation practices
Multi-omics methods to unravel microbial diversity in fermentation of Riesling wines
Wine aroma is shaped by the wine’s chemical compositions, in which both grape constituents and microbes play crucial roles. Although wine quality is influenced by the microbial communities, less is known about their population interactions.
Soil and topography effects on water status and must composition of chardonnay in burgundy & a mini meta‐analysis of the δ 13C/water potentials correlation
The measurement of carbon isotopic discrimination in grape sugars 13 at harvest (δ C) is an integrated assessment of water status during ripening.