 IVES 9 IVES Conference Series 9 Saccharomyces cerevisiae intraspecies differentiation by metabolomic signature and sensory patterns in wine

Saccharomyces cerevisiae intraspecies differentiation by metabolomic signature and sensory patterns in wine

Abstract

AIM: The composition and quality of wine are directly linked to microorganisms involved in the alcoholic fermentation. Several studies have been conducted on the impact of Saccharomyces cerevisiae on volatile compounds composition after fermentation. However, if different studies have dealt with combined sensory and volatiles analyses, few works have compared so far the impact of distinct yeast strains on the global metabolome of the wine.

METHODS: Twelve wines were obtained from fermentations of Chardonnay musts led by twelve different commercial wine yeast strains of S. cerevisiae. In order to establish a possible link between sensory profiles and metabolic signatures, Ultra High Resolution Mass Spectrometry analysis of non-volatile compounds and Gaz Chromatography coupled to Mass Spectrometry detection of volatile compounds, sensory analysis and chemometrics were used in combination.

RESULTS: Wines were clearly discriminated, according to non-volatile, volatile and sensory analyses, despite the similar fermentation kinetics. Three groups of wines, described by similar aromatic descriptors such as fruity, vegetable and apple, were highlighted by the sensory analyses. The profiles of wines from the different groups were characterized based on 35 volatile compounds belonging to esters, medium chain fatty acids, superior alcohols and terpenes. Finally, metabolomics analyses revealed a non volatile composition specific to each wine, with biomarkers specific to each wine yeast strain of S. cerevisiae.

CONCLUSIONS:

The final composition of the wine is intimately linked to the specific production of metabolites by each strains of S. cerevisiae. The combination of analytical and sensory analyses allowed us to discriminate and characterized wines from the twelve strains of S. cerevisiae.

DOI:

Publication date: September 3, 2021

Issue: Macrowine 2021

Type: Article

Authors

Fanny Bordet, Chloé ROULLIER-GALL, Jordi BALLESTER, Régis GOUGEON, Philippe SCHMITT-KOPPLIN, Hervé ALEXANDRE, Anne JULIEN-ORTIZ

University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR, Institut Universitaire de la Vigne et du Vin, Jules Guyot, France Lallemand SAS, 19 rue des Briquetiers, Blagnac, France, University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR, Institut Universitaire de la Vigne et du Vin, Jules Guyot, France, Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, University of Bourgogne Franche-Comté, F-21000 Dijon, France Stephania VICHI, University of Barcelona, Nutrition, Food Science and Gastronomy Department, INSA – XaRTA (Catalonian Reference Network on Food Technology), Santa Coloma de Gramenet, Spain, University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR, Institut Universitaire de la Vigne et du Vin, Jules Guyot, France, Lallemand SAS, 19 rue des Briquetiers, Blagnac, France , German Research Center for Environmental Health, Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Neuherberg, Germany, University of Bourgogne Franche-Comté, AgroSup Dijon, PAM UMR, Institut Universitaire de la Vigne et du Vin, Jules Guyot, France

Contact the author

Keywords

yeast saccharomyces cerevisiae-wine- metabolomic-volatile compounds-sensory analysis

Citation

First step in the preparation of a soil map of the Protected Designation of Origin Valdepeñas (Central, Spain)

This work is a first step to make a map of vineyard soils. The characterization of the soils of the Protected Designation of Origin (D.P.O.) Valdepeñas will allow to group the studied profiles according to their physico-chemical characteristics and the concentrations of most relevant chemical elements. 90 soil profiles were analysed throughout the territory and the soils were sampled and described according to FAO (2006) and classified according to and Soil Taxonomy (2014). All samples were air dried, sieved and some physico-chemical parameters were determined following standard protocols. Also, major and trace elements were analysed by X-ray fluorescence. The statistically study was made using the SPSS program. Trend maps were made using the ArcGIS program. The studied soils have the following average properties: pH, 8.3; electrical conductivity, 0,20 dS/m (low); clay, 18.8% (medium) and CaCO3, 17.1% (high). In the study for the major elements. The major elements of these soils are Si, followed by Ca and Al, with an average content of 203.7 g/kg, 105.5 g/kg and 74.0 g/kg respectively. On the other hand, 27 trace elements have been studied. Of all of them, it can be highlighted the average values of Ba (361.8 mg/kg), Sr (129.3 mg/kg), Rb (83.4 mg/kg), V (74.2 mg/kg) and Ce (70.6 mg/kg). Ba, V and Ce values are higher and the values of Sr and Rb are lower to those found in the literature. The discriminant analysis shows a percentage of grouping of 91%. The content of chemical elements together with the physico-chemical characteristics allows grouping the soils in 4 group according to their order in the classification to Soil Taxonomy; due to the importance of the Calcisols in Castilla-La Mancha, it has been decided to establish them as their own group even if they do not appear in Soil Taxonomy classification.

Preliminary results on the effect of different organic mulching on wine polyphenol content

Soil mulching is an interesting strategy to reduce soil evaporation, assist in weed control, improve soil structure and organic content, increase soil water infiltration, and decrease diurnal temperature fluctuations

Try the GiESCO EcoMetaEthical Charter !

The sustainability of vineyards is a major issue. The choices proposed to date have major flaws such as the lack of scientific bases or the use of dangerous products such as copper. GiESCO has published a charter of best practices for the environment and for people adapted to various environments. The use of sustainably resistant grape varieties that produce quality wines plays a central role here. Often innovative cultivation systems associated with new technologies and based on scientific bases, guarantee respect for people and the environment. These proposals are brought together in a charter which is part of a meta-ethical approach to seeking consensual measures to ensure the sustainability of vineyards.

Canopy microclimate vineyard variability in vineyards of the Lodi region of California, USA

Aim: The aim of this project was to evaluate the microclimatic effects on objective measures of fruit quality within different vigour classes of multiple vineyards and to compare the results across the Lodi region of California, USA.

Nivel de infección y saneamiento del virus del entrenudo corto (GFLV) en el cv. de vid Pedro Ximenez en la denominación de origen Montilla-Moriles (DOMM)

Mediante análisis por test ELISA de hojas de vides (Vitis vinifera L.) del cv. Pedro Ximénez, procedentes de 28 parcelas experimentales distribuidas por la DOMM