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Wine microbiology

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Published on: 09/06/2016
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Improvement of wine yeasts fermentative efficiency by food-grade antioxidant treatment during active dry yeast (ADY) production
Emilia Matallana Redondo, Universitat de València, Spain
The use of ADY in modern oenology imposes a major challenge to the starter’s ability to ferment grape must sugars quickly and efficiently. Among the adverse factors during ADY production, oxi...
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Published on: 06/13/2019
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Varietal thiol management during the winemaking process
Remi Schneider, Oenobrands Product & Application Manager
VIDEO SEMINAR ENOFORUM 2018: The varietal thiols (4-mercapto-4-methylpentan-2-one (4MMP), 3-mercaptohexan-1-ol (3MH) and 3-mercaptohexylacetate (A3MH) are key odorants of wine. They are released du...
Published on: 06/12/2019
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The influence of mitochondrial DNA in wine production
Alexandra Verspohl, Università di Modena e Reggio Emilia
VIDEO SEMINAR ENOFORUM 2017: in improvement programmes of wine yeasts the impact of mitochondrial DNA (mtDNA) on the functionality of the cell was usually neglected. Nevertheless, it is an importan...
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Published on: 01/07/2019
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Identification of autochthonous oenococcus oeni from grapes and wines of Priorat (Catalonia, Spain) and their selection for vinification
Judit Franquès, Isabel Araque, Cristina Reguant and Albert Bordons; Universitat Rovira i Virgili, Spain
Oenococcus oeni, the lactic acid bacterium (LAB) mainly responsible for malolactic fermentation, has been repeatedly isolated from wines, but hardly ever from grapes. In this work, a large survey o...
Published on: 01/06/2019
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Evolutionary strategies to develop high-Glutathione yeast strains for winemaking
Tommaso Bonciani, University of Modena and Reggio Emilia
VIDEO SEMINAR ENOFORUM 2017: The obtainment of yeast strains capable of producing high amounts of this molecule during the fermentation is highly desirable, as such a strain would drastically reduc...
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Published on: 12/17/2018
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Immobilization of yeasts in oak chips and cellulose powder for use in bottle-fermented sparkling wine
Carmen Berbegal, ENOLAB, ERI BioTecMed. Universitat de València
VIDEO SEMINAR ENOFORUM 2018: This immobilization system is suitable to be used with other yeasts and bacteria for different winemaking processes (alcoholic or malolactic fermentations).
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Published on: 11/29/2018
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Aging on lees time reduction of a Chardonnay wine by electroporation
Juan Manuel Martínez, Universidad de Zaragoza
VIDEO SEMINAR ENOFORUM 2018: the objective of this research was to verify if the treatment of the lees by PEAV accelerated the release of mannoproteins during the aging on lees of a Chardonnay wine.
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Published on: 11/14/2018
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Volatile composition of sulphite-free white wines obtained after fermentation in the presence of chitosan
A. Castro-Marin, A. Gabriela Buglia, F. Chinnici, C. Riponi; Département des sciences agronomiques et alimentaires, Université de Bologne, Italy
The aim of this work was to study the effects of the fermentative addition of chitosan on fixed and volatile compounds of sulphites free white wines. Studies of the difference between sulphite-free...
Published on: 11/13/2018
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BIOPROTECTION-KEEP IT GREAT
Teresa Garde Ceirán, ICVV, Spain - Stephane Yerle, winemaker, France
VIDEO SEMINAR ENOFORUM 2018: An interesting alternative to the SO2 is the use of bioprotective microorganisms that prevent the development of unwanted microorganisms.
Published on: 10/10/2018
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Phytosterol in grape solids: composition and impact on alcoholic fermentation
Erick Casalta, INRA UMR 1083 SPO, Montpellier (F)
VIDEO SEMINAR ENOFORUM 2017: The objective of the study aimed to better know the sterols composition and content of the grape solids and to determine their impact on the liquid-phase alcoholic ferm...
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Published on: 09/27/2018
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“Yeast-Total Enhancement Advanced Method“: a system integrated management of wine yeasts
Paolo Antoniali, Italiana Biotecnologie; Raffaele Lopreiato, Dipartimento di Scienze Biomediche, Università di Padova
This seminars illustrate a Supply Chain Management model, which consists of all the activities that aim to guarantee the quality of a specific good throughout the production process and he uses yeast
Published on: 07/16/2018
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New tools for biocontrol in the production of fine wines
Olivier Pillet, Institute Oenologique de Champagne (F) ; Gianbattista Tornielli, Università di Verona (I)
Video seminar Enoforum 2017: The growing need to reduce sulphite contents and changing climatic conditions have increased the microbiological risks associated with the pre-regeneration stages of wi...
Published on: 06/18/2018
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New approaches to the vineyard microbiome
Stephane Compant, Austrian Institute of Technology - Alex Gobbi, microwine project - Alberto Acedo, WineSeq
The plant is not a sterile system but interacts with a community of microorganisms at different levels that make up its microbiome. The study of the microbiome and of both positive and negative int...
Published on: 04/18/2018
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From hybridization to the EASY-2-USE
Etienne Dorignac, Fermentis; Jean Christophe Crachereau, Chambre d'Agriculture de la Gironde – Service Vigne & Vin
The winemaker is more and more demanding in the selection of yeasts that can make something more than the simple fermentation of sugars. This "more" can be found in nature, but it is rare. Today se...
Published on: 03/05/2018
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Bio-protection of must and wine and microbial interactions: metagenomics study
Sofie SAERENS, CHR Hansen - Stéphane YERLE, winemaker, Bordeaux - Marco RAZZAUTI, CHR Hansen
Video seminar Enoforum 2017: Bioprotection is a natural way to inhibit microbial contaminants (yeast, mold and bacteria). This bio- control not only helps you to prevent flavor defects, it also helps
Published on: 01/18/2018
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