IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Depletion Of Vine-Shoots Phenolic Composicion After Being Used As An Enological Tool For Wine Differentiation

Depletion Of Vine-Shoots Phenolic Composicion After Being Used As An Enological Tool For Wine Differentiation

Abstract

Pruning vine-shoots are a viticulture waste that have been traditionally poorly exploited in relation to its chemical minority composition related to phenolic and volatile compounds. In this line, toasted vine-shoots supposes a proposal of enological tool to use to modulate the chemical and sensorial profile of wines. From a phenolic point of view, when vine-shoots are used during winemaking mainly influence to increase the flavanols and stilbenes content, mostly trans-resveratrol, as also an increasing in the sweet tannins and decreasing the green character and total anthocyanins, changing the violet for garnet colour.
Along with the already proven release of compounds from the vine-shoots to wines elaborates with them, the transfer of some of them that are present in wines to vine-shoots must be considered. For this, the aim of this work was to evaluate the depletion in terms of transfer of phenolic compounds from the wine to vine-shoots that were used during vinification. For which, vine-shoots were analysed before and after having been in contact with the wine. To compare the effect on the type of wine, two wines from Tempranillo and Cabernet Sauvignon were considered, to which toasted vine-shoots of their corresponding varieties were added after malolactic fermentation in a dose of 24 g/L. The analysis in terms of phenolic composition was development by HPLC-DAD.

The results revealed that different patterns were observed for families. As expected, there was a clear transfer of anthocyanins from the wine to vine-shoots, ranging between 3.3 and 3.5 g/Kg for Tempranillo and Cabernet-Sauvignon, which resulted in a loss of 25 to 27% in wines from the respective varieties. The same behaviour was observed for flavonols group, whose content was among 0.29 and 0.25 g/Kg for Tempranillo and Cabernet-Sauvignon vine-shoots, being its decrease in wines between 31 to 25%, respectively. In contrast, flavanols, phenolic acids and stilbenes showed an average increase of 14%, 8% and 57%, showing trans-resveratrol the greatest increase.
These results show the different transfer of phenolic compounds from the wine to vine-shoos. This would suppose that, after being used during winemaking, vine-shoos could be considered for a second use, given their remaining potential. 

Acknowledgments: This study was supported by USARVID019 Project (Ref.: IDI-20190844), financed by Pago de la Jaraba winery (Albacete, Spain) through the FEDER and CDTI entities.

DOI:

Publication date: June 24, 2022

Issue: IVAS 2022

Type: Poster

Authors

Sánchez-Gómez Rosario1, Cebrián-Tarancón Cristina1, Fernández-Roldán Francisco1, Alonso Gonzalo L.1 and Salinas M. Rosario1

1Cátedra de Química Agrícola, E.T.S.I. Agrónomos y Montes, Universidad de Castilla-La Mancha

Contact the author

Keywords

depletion, loss level, phenolic compounds, vine-shoots enological tool

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Méthodologie pour application et valorisation des études de terroir dans les caves cooperatives des Côtes du Rhône (France)

L’appellation d’origine contrôlée “Côtes du Rhône” se caractérise par une très forte implantation du mouvement coopératif. Afin de mieux exploiter le potentiel qualitatif de leurs terroirs, plusieurs coopératives élaborent des “cuvées terroir”, résultat des sélections de vendanges provenant de différents secteurs.
Read More

Use of multispectral satellite for monitoring vine water status in mediterranean areas

The development of new generations of multispectral satellites such as Sentinel-2 opens possibilities as to vine water status assessment (Cohen et al., 2019). Based on a three years field campaign, a model of Stem Water Potential (SWP) estimation on vine using four satellite bands in Red, Red-Edge, NIR and SWIR domains was developed (Laroche-Pinel et al., 2021). The model relies on SWP field measures done using a pressure chamber (Scholander et al., 1965), which is a common, robust and precise method to assess vine water status (Acevedo-Opazo et al., 2008). The model was mainly developed from from SWP measures on Syrah N (Laroche Pinel E., 2021).

A large scale monitoring was organized in different vineyards in the Mediterranean region in 2021. 10 varieties amongst the most represented in this area were monitored (Cabernet sauvignon N, Chardonnay B, Cinsault N, Grenache N, Merlot N, Mourvèdre N, Sauvignon B, Syrah N, Vermentino B, Viognier B). The model was used to produce water status maps from Sentinel-2 images, starting from the beginning of June (fruit set) up to September (harvest). The average estimated SWP for each vine was compared to actual field SWP measures done by wine growers or technicians during usual monitoring of irrigation programs. The correlations between mean estimated SWP and mean measured SWP were at the same level than expected by the model. (Laroche Pinel, 2021) The general SWP kinetics were comparable. The estimated SWP would have led to same irrigation decisions concerning the date of first irrigation in comparison with measured SWP.

Acevedo-Opazo, C., Tisseyre, B., Ojeda, H., Ortega-Farias, S., Guillaume, S. (2008). Is it possible to assess the spatial variability of vine water status? OENO One, 42(4), 203.
Cohen, Y., Gogumalla, P., Bahat, I., Netzer, Y., Ben-Gal, A., Lenski, I., … Helman, D. (2019). Can time series of multispectral satellite images be used to estimate stem water potential in vineyards? In Precision agriculture ’19, The Netherlands: Wageningen Academic Publishers, pp. 445–451.
Laroche-Pinel, E., Duthoit, S., Albughdadi, M., Costard, A. D., Rousseau, J., Chéret, V., & Clenet, H. (2021). Towards vine water status monitoring on a large scale using sentinel-2 images. remote sensing, 13(9), 1837.
Laroche-Pinel,E. (2021). Suivi du statut hydrique de la vigne par télédétection hyper et multispectrale. Thèse INP Toulouse, France.
Scholander, P.F., Bradstreet, E.D., Hemmingsen, E.A., & Hammel, H.T. (1965). Sap pressure in vascular plants: Negative hydrostatic pressure can be measured in plants. Science, 148(3668), 339–346.

Read More

Polyphenols in kombucha: Metabolomic analysis of biotransformations during fermentation

Kombucha is a non-alcoholic beverage made of sugared tea that is transformed by a symbiotic consortium of yeasts and bacteria. This beverage is increasingly produced at industrial scale, but its quality standards remain to be defined. Metabolomics analysis was carried out using FT-ICR-MS to understand the chemical transformations induced by the production phases and the type of tea on

Read More

Market analysis of Chilean Pinot noir, Carménère, and Cabernet-Sauvignon wines: A comparative study of chemical parameters across low, medium, and high price segments

Wine quality is a complex concept determined by multiple factors, including vineyard management, winemaking operations, and the sensory perception of key attributes.

Read More

Apports des mesures de résistivité électrique du sol dans les études sur le fonctionnement de la vigne et dans la spatialisation parcellaire

La mesure de la résistivité électrique des sols est une technique non destructive, spatialement intégrante, utilisée depuis peu en viticulture. L’utilisation d’appareils de mesures performant et de logiciels adaptés permet de traiter les données afin de pouvoir visualiser en deux ou trois dimensions les variations de textures ou d’humidité d’un sol.

Read More