From vineyard to bottle. Rationalizing grape compositional drivers of the expression of valpolicella aroma ‘terroir’
AIM: Valpolicella is a renowned Italian wine-producing region (Paronetto, 1981). Wines produced in its different sub-regions are anecdotally believed to be aromatically different, although there is no systematic study addressing the chemical bases of such diversity
Influence of must fining on oxygen consumption rate, oxidation susceptibility and electrochemical characteristics of different white grape musts
AIM: Pre-fermentative fining is one of the central steps of white wine production. Mainly aiming at reducing the levels of suspended solids, juice fining can also assist in reducing the content of oxidizable phenolics and therefore the susceptibility of juice to oxidation.
The aroma diversity of italian white wines
AIM: Aroma is a key contributor to white wines sensory typicality, perceived diversity and overall preference.
Grape seed flavanols extraction and mechanical-acoustic properties as influenced by maceration time and ethanol content
AIM: Grape flavanols are involved in wine quality markers such as in-mouth sensations and colour stability.
Distribution analysis of myo and scyllo-inositol in natural grape must
s it is well known, myo and scyllo-inositol are two characteristic sugars of grape must and, for this reason, their quantification has been proposed to control the authenticity of the concentrated and rectificated grape must.
Insights from selected ion flow tube mass spectrometry (SIFT-MS) and chemometrics applied to the quick discrimination of grapevine varieties
Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) is an innovative analytical method based on soft chemical ionization to analyze thecomposition in volatile compounds of a gas phase
Influence of berry maturity, maceration time and wine maturation on the polyphenols and sensory characteristics of pinot noir and Cabernet-Sauvignon
AIM: Combined investigation of the influence of berry maturity, maceration time and wine maturation on the changes in polyphenols and sensory characteristics of Pinot noir and Cabernet-Sauvignon.
Neural networks and ft-ir spectroscopy for the discrimination of single varietal and blended wines. A preliminary study.
Blending wines from different grape varieties is often used in order to increase wine complexity and balance. Due to their popularity, several types of blends such as the Bordeaux blend, are protected by PDO legislation.
The use of unripe frozen musts for modulating wine characteristics throughout acidity correction – effects on volatile and amino acid composition
As environmental issues come more to the fore, vineyards residues are being looked at as solutions rather than problems. Aiming to develop a sustainable methodology for musts acidity correction in the process of winemaking, much needed in warm regions, the present study was performed according to Circular Economy values.
Microwave-assisted maceration and stems addition in Bonarda grapes: effects on wine chemical composition and sensory properties over two vintages
AIM: Bonarda, the second red grape variety in Argentina, produces high yields per hectare generating, in several cases, wines with low levels of quality compounds.
Development of a new commercial phenolic analysis method for red grapes
Grape phenolic content is an important quality factor that influences the appearance and mouthfeel of premium red wines.
Evaluation of Saccharomyces cerevisiae strains from honey by-products by their performance as starters in the wine industry
AIM: Recent studies on yeast ecology of non-oenological niches have highlighted the ability of some Saccharomyces cerevisiae yeasts to ferment grape must [1]
Influence of different strains of lab on quality of catarratto wine produced in sicily
AIM: Lactiplantibacillus plantarum and Oenococcus oeni species is worldwide used as starter for malolactic fermentation [1, 2].
Influence of Lactiplantibacillus plantarum and Oenococcus oeni strains on sensory profile of sicilian nero d’avola wine after malolactic fermentation.
AIM: Malolactic fermentation is a process of decarboxylation of L-malic acid into L-lactic acid and carbon dioxide that leads to deacidification, modification of odors and flavors of wines [1]
Management of varietal thiols in white and rosé wines using biotechnical tools
The present study evaluates the effect of prefermentative maceration enzymes and yeast autolysate on the concentration of conjugated precursors and volatile thiols, respectively.Sauvignon blanc and Merlot grapes underwent skin-contact maceration with or without pectolytic enzymes, for the production of white and rosé wines
High pressure homogenization of fermentation lees: acceleration of yeast autolysis and evolution of white wine during sur-lies ageing
AIM: High pressure technologies represent a promising alternative to thermal treatments for improving quality and safety of liquid foods.
Exploring the resistance of non-Saccharomyces wine yeasts to dehydration-rehydration processes
AIM: The use of non-Saccharomyces (NS) yeasts in multi-starter fermentations with S. cerevisiae is a trend in the wine industry, but the number of strains commercially available in a powder formulation, such as active dry yeasts (ADY), is still limited.
Effect of the addition of polysaccharides extracted for grape pomace and must on sensory and chemical composition of white wines
AIM: The objective of this work is to study the effect of the addition of polysaccharides extracted for grape pomace by-products and musts on sensory and chemical composition of white wines. Much of the waste obtained in the wine sector is not used, and they can have some valuable compounds, such as the polysaccharides (PS).
Are my bubbles shrinking? A deeper look at oxygen desorption in wine
In the past decade, there has been an increasing amount of work dedicated to understanding micro-oxygenation in wine.
Effect of grape polysaccharides on the volatile composition and aromatic profile of Viura wines
AIM: Many research studies have analyzed the effect of polysaccharides in the aromatic composition of white wines.