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» Variability of Tyrosol, Hydroxytyrosol and Tryptophol contents in Sangiovese wines produced by a single strain of Saccharomyces cerevisiae

Selection of yeast and fermentation conditions for the production of Sauvignon Blanc
Etienne DORIGNAC, Fermentis - Marie-Charlotte COLOSIO, Institut Français de la Vigne et du Vin
Sauvignon Blanc is one of the most widespread aromatic varieties in the world. Characterized by strong varietal and fermentative flavors, winemakers can play with yeasts and fermentation parameters...
Published on: 22/06/2020
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Variability of Tyrosol, Hydroxytyrosol and Tryptophol contents in Sangiovese wines produced by a single strain of Saccharomyces cerevisiae

Variability of Tyrosol, Hydroxytyrosol and Tryptophol contents in Sangiovese wines produced by a single strain of Saccharomyces cerevisiae

ROMBOLI Yuri , MANGANI Silvia, BUSCIONI Giacomo and VINCENZINI Massimo Dipartimento di Gestione dei Sistemi Agrari, Alimentari e Forestali (GESAAF), U

Tyrosol, hydroxytyrosol and tryptophol are reported to possess several health-enhancing activities, deriving from their free radical scavenging, anticarcinogenic, cardioprotective and antimicrobial properties.

Tyrosol and tryptophol are produced by yeasts during alcoholic fermentation from the catabolism of amino acids tyrosine and tryptophan, respectively, whereas hydroxytyrosol is produced by hydroxylation of its precursor tyrosol.

Tyrosol and tryptophol are described as quorum sensing molecules in different yeast species. These aromatic alcohols allow S.cerevisiae to respond to both cell density and nutritional state of the environment.
The aim of this work was to investigate on the factors, other than yeast strain, affecting the accumulation of tyrosol, hydroxytyrosol and tryptophol in wine

Poster presented at Enoforum 2013, 7-9 May, Arezzo (Italy)

Published on 05/05/2014

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(907,889 Kb) Open and read the poster (pdf, 907 Kb)

E. Aguera, J.M. Sablayrolles

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...

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Published on:09/10/2018

Most popular practices in Europe against FD

Results of interviews in 10 winegrowing regions

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Published on:06/12/2016

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