The 20th GiESCO International Meeting is held in Mendoza (Argentina), November 5-10, 2017.
Analysis of the evolution of the most cultivated vine varieties in Argentina during the period 2000-2016*. The area evolution by variety, color and aptitude in all the country and per province was analyzed. The total area under vine increased by 11%, varieties suitable for wine and / or musts increased by 9.5%, those suitable for fresh consumption had an increase by 46.5% and those suitable for raisins increased by 25.3%.
Wine industry is an important economic activity in the World, generating significant quantities of residues, mostly known as grape pomace. This material is rich in many nutrients, as fiber, minerals and antioxidants substances, such as phenolic compounds. These nutraceutical properties of grape pomace could be harnessed for human or animal consumption.
However, the increase of sugar concentration in the grapes causes a decrease of desired organic acids which are positive for the production of sparkling wines. The aim of this study was to identify the optimal harvest period of 'Chardonnay' intended to sparkling wine making in Dom Pedrito, Campanha Gaúcha.
The objective of this work is to characterize the different fractions obtained, based on their malic, tartaric and total acidity. Twenty fractions of must were discriminated in order during the pressing for further physical-chemical analysis by Fourier Transform (FTIR).
The objective of this work was evaluate different fractions of must obtained along the vertical pressing, aiming to study important variables on quality of white wines. Thus, twenty portions of must were obtained for subsequent physico-chemical analyzes of total acidity, pH and tartaric acid by Fourier Transform Infrared Spectrometry (FTIR).
During ageing, different chemical reactions occur affecting the stability of wine. These reactions depend on the temperature, the conservation time, etc. Also, these reactions are affected by dissolved oxygen (OD) and headspace oxygen (OHS) which are related to the permeability of different closures types.
Among the compounds contributing to the grape and wine qualities, phenolics play an important role. Therefore, the objective of this study was to determine the phenolic compounds of skins and pulps of white and red grapes at harvest, destined to traditional sparkling wines, from two winegrowing regions producing tropical wines in the Northeast of Brazil.
The use of clonal selections in viticulture allows having vineyards with more defined and uniform characteristics. Different clonal selections of a same cultivar can have different productive and quality based characteristics, which are dependent on environmental factors. The objective of this study was to characterize three grapevine clonal selections ENTAV-INRA (169, 191, and 337) and a massal selection of Cabernet Sauvignon, submitted to two yield range management by a cluster thinning treatment.
Rosé sparkling wines require special elaboration methods that ensure their quality and color stability during aging in bottle. The objective of this work was to evaluate the effect of the addition of different concentrations of gum arabic and tannin in Brazilian rosé sparkling wines elaborated by the Traditional method (cv. Cabernet Sauvignon) and their impact on the phenolic composition during aging in bottle.
The use of non-traditional grape varieties for elaboration of sparkling wines is a challenge for the winemaking industry. The Goethe variety stands out as being a typical cultivar of the Urussanga Region in the south of Santa Catarina State, Brazil, where most of its production is directed to the elaboration of still wines.