WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 3 - WAC - Oral 9 Advances in the chemistry of rosé winemaking and ageing

Advances in the chemistry of rosé winemaking and ageing

Abstract

The market share of Rosé wine in France has grown from 11 % to 32 % over the last 20 years. Current trends are towards rosé wines of a lighter shade of pink, and where possible, containing a greater concentration in varietal thiols. Grape varieties, the soil on which they are grown, viticultural practices and winemaking technology all impact the polyphenols, color and aromas of rosé wines. To investigate the terroir effect, a study on the influence of origin of rosé wine was  performed using semi-targeted polyphenomics. 60 commercial wines from Bordeaux, Languedoc and Provence regions were used as two independent sample and data sets (30 wines each). An original LC-QTOF-MS method and a specific data analysis genetic algorithm gave good discrimination of the wines based on their origin of production [1].

Apart from the origin or terroir of the grapes, winemaking technology plays a crucial role in determining the color and aroma profile of rosé wine, including the widespread use of polyvinylpolypyrrolidone (PVPP) to adjust the color and polyphenol content. The specific adsorption of coumaroylated anthocyanins was greater than that of other anthocyanins [2], and a molecular modelling approach was used to further understand this specific binding affinity. We showed that using PVPP, the thiol aroma content of rosé wine can be increased up to 200 % as compared to the control wines [3]. This might explain the increase in demand for lighter colored rosé wines over the last number of years.

When the desired color and aroma are obtained, a remaining challenge is to understand and predict the sensitivity of rosé wines to oxidation. Accelerated ageing tests based on heat and chemical oxidation are currently under investigation in our laboratory. These tests and mass spectrometry show that the anthocyanins are appropriate biomarkers of chemical ageing in rosé wines.

References

[1] Gil, M., Reynes, C., Cazals, G., Enjalbal, C., Sabatier, R., & Saucier, C. . Scientific reports. 2020, 10(1), 1-7
[2] Gil, M.,  Avila-Salas, F., Santos, L.S.,  Iturmendi, N., Moine, V ., Cheynier, V., Saucier C.  J. Agric.  Food Chem. 2017 65, 10591-10597
[3] Gil, M.,  Louazil,P., Iturmendi, N., Moine, V ., Cheynier, V., Saucier C. Food Chem. 2019, 295, 493-498

DOI:

Publication date: June 13, 2022

Issue: WAC 2022

Type: Article

Authors

SAUCIER,  Melodie, Gil, Fabian, Avila, Philippe, Louazil, Guillaume, Cazals, Christine Enjalbal, Arnaud, Massot, Leonardo, Santos, Robert, Sabatier, Virginie, Moine

Presenting author

SAUCIER, Cédric 

SPO, Université de Montpellier, France | Laboratory of Asymmetric Synthesis, Institute of Chemistry and Natural Resources, Universidad de Talca, Talca, Chile | Biolaffort,  Floirac, France | IBMM,University de  Montpellier, France | Biolaffort,  Floirac, France | IGF, University de Montpellier, France | Biolaffort,  Floirac, France

Contact the author

Keywords

Rosé wine, color, polyphenol, PVPP, thiol, oxidation

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Physiological and growth reaction of Shiraz/101-14 Mgt to row orientation and soil water status

Advanced knowledge on grapevine row orientation is required to improve establishment, management and outcomes of vineyards on terroirs with different environmental conditions (climate, soil, topography) and in view of a future change to more extreme climatic conditions. The purpose of this study was to determine the combined effect of row orientation, plant water status and ripeness level on the physiological and viticultural reaction of Shiraz/101-14 Mgt.

Effects of mechanical leafing and deficit irrigation on Cabernet Sauvignon grown in warm climate of California

San Joaquin Valley accounts for 40% of wine grape acreage and produces 70% of wine grape in California. Fruit quality is one of most important factors which impact the economical sustainability of farming wine grapes in this region. Due to the recent drought and expected labor cost increase, the wine industry is thrilled to understand how to improve fruit quality while maintaining the yield with less water and labor input. The present study aims to study the interactive effects of mechanical leafing and deficit irrigation on yield and berry compositions of Cabernet Sauvignon grown in warm climate of California.

The effects of cane girdling on berry texture properties and the concentration of some aroma compounds in three table grape cultivars

The marketability of the table grapes is highly influenced by the consumer demand; therefore the market value of the table grapes is mainly characterized by its berry size, colour, taste and texture. Girdling could cause accumulation of several components in plants above the ringing of the phloem including clusters and resulting improved maturity. The aim of the experiments was to examine the effect of girdling on berry texture characteristics and aroma concentration.

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Different yield regulation strategies in semi-minimal-pruned hedge (SMPH) and impact on bunch architecture

Yields in the novel viticulture training system Semi-Minimal-Pruned Hedge (SMPH) are generally higher compared to the traditional Vertical Shoot Positioning (VSP). Excessive yields have a negative impact on the vine and wine quality, which can result in substantial losses in yield in subsequent vintages (alternate bearing) or penalties in fruit quality. Therefore yield regulation is essential. The bunch architecture in SMPH differs from VSP. Generally there is a higher amount but smaller bunches with lower single berry weights in SMPH compared to VSP.