Glutathione is an important constituent of grapes, must, and wine. However, to date, no review has provided an integrated view of the role of this compound in wine-related systems. In this review, special emphasis is given to its occurrence in grapes, must, and wine and its role as an antioxidant in wine. The effect of glutathione on both desirable and undesirable aroma compounds is also outlin...

The metal composition of finished wine is a function of the metals present in the grapes as well as those introduced by viticultural and enological practices [1]. Most research so far has focused on elemental profiling for the potential determination of the geographical origin of wine. However, in previous studies, the correlation between the trace element profile of vineyard soil and wine made...

The carbohydrate content in different foods may have different effects on postprandial blood glucose. Study was conducted to compare the glycemic effect of 50g carbohydrate in fruits (watermelon, Persian melon, grapes and pears) in normal, IGT and diabetic subjects. Thirty two subjects, 12 NIDDM, 12 IGT and 8 normals, with a mean age of 53±7 years were randomly selected. The subjects came to Va...

Recent ecological surveys indicate that the wine yeast Saccharomyces cerevisiae may be isolated with extreme difficulty from natural substrates, such as vineyard soil or the surface of mature grapes, conventionally believed to be its elected habitat. Conversely, it is amply demonstrated that its preferential location as the only fermenting colonizer is the surfaces of the wineries. Non-conventi...

• The concentration of anthocyanins in grape skins is a characteristic specific to each grape variety even if environmental and cultural factors play a role in determining the final amounts. Knowing the anthocyanin characteristics of grapes before harvest would allow the winemaker to choose the maceration regime best suited to maximize the potential of each incoming grape load. The initial goal...

Jack A. Gilbert, Daniel van der Lelie, and Iratxe Zarraonaindia Institute for Genomic and Systems Biology, Argonne National Laboratory, Argonne, IL 60439; Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637; Center of Excellence for Agricultural Biosolutions, FMC Corporation, Research Triangle Park, NC 27703; and Ikerbasque, Basque Foundation for Science, 48011 Bilbao,...

The production of high-quality sparkling wines consists in an integrated approach at all stages production, taking into account the potential grapes, soil and climatic conditions its cultivation, etc. As a research result 2016-2021, comprehensive assessment system “grapes - base wine wine” made it possible to establish additional indicators grapes that allow obtaining wines. Based on establishe...

Background & Aims of the Study: Grape, a crucial agriculture crop of Malayer city, is affected by Vine cicada, Psalmocharias alhageos.  Imidacloprid, a neonicotinoid insecticide, provides a good management of this insect. The aim of this research is residue persistence study of imidacloprid on grapes, to estimate its residue deposit, the half-life of degradation and safe pre-harvest consumption...

Grape and wine phenolics are structurally diverse, from simple molecules to oligomers and polymers usually designated as tannins. They have an important impact on the organoleptic properties of wines, that's why their analysis and quantification are of primordial importance. The extraction of phenolics from grapes and from wines is the first step involved in the analysis. Then, several analytic...

An increase in ambient temperature affects the quality of wines, which is largely due to a change metabolism phenolic substances grapes. A possible solution problem use autochthonous varieties adapted unfavorable conditions. The influence agroecological conditions 4 vineyards on complex Crimean grape variety ‘Kokur Belyi’ has been studied. Methods geoinformation and mathematical modeling, HPLC ...