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Showing posts with the label wine

Not About a Virus

C. Roullier-Gall, V. David, D. Hemmler, P. Schmitt-Kopplin, & H. Alexandre: “Exploring Yeast Interactions through Metabolic Profiling”, Scientific Reports (2020). How about we discuss some research that isn’t about the current pandemic? One of my college housemates always referred to yeast as “yeast-buddies” when we were brewing or in reference to my work as a winemaker. Let’s look at some recent yeast research in preparation for the impending crush. I came across this paper that was just published by Scientific Reports . Winemakers have to be practical microbiologists as they herd yeast, and bacteria, through their respective fermentations. Few winemakers, however, seem to stray beyond yeast ranching. Metabolomics is a type of systems biology that focuses on the intermediate substrates of metabolism. A textbook definition might read as, “Metabolomics is the study of the unique chemical composition, or fingerprints, of particular cellular processes.” The important concept, at l...

Vine and Oak Extracts Sprayed as a Foliar?

Rosario Sánchez-Gómez, Eva P. Pérez-Alvarez, Rosario Salinas, Ana Gonzalo-Diago, Amaya Zalacain, Teresa Garde-Cerdan. “Effect of vine-shoot and oak extract foliar grapevine applications on oenological parameters, phenolic acids and glutathione content of white musts and wines,” Oeno One (2020).   I stumbled across a fascinating paper in Oeno One from a research group in Spain. In this research, grapevine shoots were sprayed with vine-shoot and oak-wood extracts. The foliar sprays had the result of reducing the final Brix/Baumé of the grapes at harvest. The authors also noted a general increase in the wine color quality for the treated vines. I think I would like to see the results from more trials, in more, different vineyards. However, this paper does seem to indicate that there is another way to dispose of vineyard canes after pruning than burning or chipping and composing them. I’ll post the abstract here with a link to the original paper. I intend to follow procedure wit...