Ana Valero, Sonia MarÃn, Antonio J. Ramos and Vicente Sanchis, Food Chemistry
The occurrence of Ochratoxin A (OTA) was examined in 121 special wines made using different winemaking techniques and from many European origins. The wine groups with the highest OTA content and occurrence, above 90%, were those were the must was fortified before fermentation (mean: 4.48 μg/l) and those made from grapes dried by means of sun exposure (mean: 2.77 μg/l). Fortified wines with long aging in wooden casks were about 50% contaminated, with OTA levels below 1.00 μg/l. Wines affected by noble rot, late harvest wines and ice wines did not contain OTA. Overall, 19.8% of the wines studied contained OTA levels above the maximum permissible limit for the European Union (2 μg/kg) in wine (excluding liqueur wines). (We recommend that you consult the full text of this article)
The seasonal character of harvests limits winemaking considerably, especially oenological research. Thus, conserving sterile musts during the whole year to carry out experiments is certainly a very...
JL Aleixandre-Tudo et al., University of Stellenbosch (South Africa)
Phenolic compounds are responsible for the main quality attributes of red wines, and phenolic analysis is still time consuming and difficult to perform for most of the wineries
Francesca Borghini and Stefano Ferrari; ISVEA srl, Siena (Italy)
Within the framework of the Submeasure 16.2 of the Rural Development Plan of the Region of Tuscany-European Innovation Partnership, the Vintegro project has focused, for over two years, on the stud...
This study aims at exploiting an undervalued winemaking by-product, wine yeast lees, by developing efficient and food-grade methods for the extraction of yeast glycoproteins. These extracts were th...
Quercetin belongs to the class of polyphenols, flavonoids in particular. The most abundant in wine are quercetin, myricetin, kaempferol and isoramnetin, which come from the glycosidic forms found i...
Jose Luis Aleixandre-Tudo, University of Stellenbosch (South Africa)
Phenolic compounds are responsible for the main quality attributes of red wines, and phenolic analysis is still time consuming and difficult to perform for most of the wineries
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