VINEAS

VINEAS is a collaborative platform that brings actors and projects together and allows for knowledge and solutions sharing. It also provides methodological support for the Vine & Wine actors willing to search and share knowledge and initiatives around climate change challenges.

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Understanding 21st Century Bordeaux Wines from Wine Reviews Using Naïve Bayes Classifier

Although wine has been produced for several thousands of years, the ancient beverage has remained popular and even more affordable in modern times. Among all wine making regions, Bordeaux, France is probably one of the most prestigious wine areas in history. Since hundreds of wines are produced from Bordeaux each year, humans are not likely to be able to examine all wines across multiple vintages to define the characteristics of outstanding 21st century Bordeaux wines. Wineinformatics is a newly proposed data science research with an application domain in wine to process a large amount of wine data through the computer. This post summarizes the results of a study carried out with the goal of this paper is to build a high-quality computational model on wine reviews processed by the full power of the Computational Wine Wheel to understand 21st century Bordeaux wines. The model build in this research can better distinguish outstanding and class 21st century Bordeaux wines. Results provides new directions in Wineinformatics for technical research in data science, such as regression, multi-target, classification and domain specific research, including wine region terroir analysis, wine quality prediction, and weather impact examination.

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Phenolic matrix effect on aroma formation of terpenes during simulated wine fermentation – Part I: Phenolic acids

This post reports the results of study where fermentations were performed using simulated grape juice supplemented with terpene glycosides (TGs), extracted from Vitis vinifera L. Meili, and phenolic acids (gallic acid or p-coumaric acid). Free terpenes were detected using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC–MS) every day during the fermentation, and the aromas of final wines were evaluated by panelists. Results showed that phenolic acids remarkably inhibited TG hydrolysis and free terpene volatilization, and affected wine aroma perception. These findings indicate that the matrix effect of phenolic acids can effectively control the release and modulate the global feature of wine aromas. See all at: http://science-and-wine.com/

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Polyphenols in Wine Authenticity

Polyphenols are a diverse group of compounds of utter importance to wine quality. Current understanding of the polyphenolic composition in wine is well elaborated, however, recent studies continuously report novel findings involving them. It is evident that synergistic approaches between emerging analytical platforms in combination with advanced multivariate data analysis will be considered the spearheads toward fraud detection and the provision of authentic wines.

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Coupling DAD and FLD for multiclass profiling of phenolic compounds in wine industry products

This post describes a tandem absorbance and fluorescence detection following liquid chromatography (LC-DAD-FLD) method for the determination of 32 phenolic compounds (PCs) in winemaking industry derived products. The applicability of the method was verified by the suitable quantification of analytes in complex samples of wine, bunch stem and grape cane extracts. The developed LC-DAD-FLD approach is highly recommended for processing large sets of samples in routine quality control of extracts or during characterization studies.

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Post Nº 100

This is the post number 100. One hundred of weekends that I spend writing, reading, illustrating, editing and publishing the posts. The time that I spent do it is just part of the time I stole to the family, special to my youngest daughter, so today I decided to involve her in this project. The illustration is her authorship.

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Enological repercussions of non-Saccharomyces species in wine biotechnology

The use of non-Saccharomyces yeasts in enology has increased since the beginning of the current century because of the potential improvements they can produce in wine sensory quality. Several review articles have described the potential of some non-Saccharomyces species and the suitable criteria to select them according to the effects of the species on wine color, aroma, body or structure.

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Exploring the diversity of a collection of native non-Saccharomyces yeasts to develop co-starter cultures for winemaking

Winemaking involves the inoculation of Saccharomyces cerevisiae starter cultures in grape musts. Currently other yeast species are being investigated as co-starters with the aim of improving wine complexity. In this post the authors summarize the results of a study carried out to discover new strains that can be used to enhance wine quality. The results show that wine quality depend on both species and strains which indicate that mixed fermentation strategies using new generation of co-starters can improve the overall quality of regional wine.

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