terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Oxidability of wines made from Spanish minority grape varieties

Oxidability of wines made from Spanish minority grape varieties

Abstract

The phenolic profile of a wine plays an essential role in its oxidative capacity and in both white and red wines it defines its shelf life[1]. The study of minority varieties to produce wines with peculiar characteristics necessarily includes the phenolic and oxidative characterization of the wines produced. This paper presents the study of wines made from 24 minority and majority white and red grape varieties, focusing on phenolic characteristics (total phenols, slightly polymerized phenols, highly polymerized phenols, anthocyanins…), color, as well as parameters related to the oxidability of the wines and their capacity to consume oxygen [2]. The white wines studied were made with the following varieties: Albarín, Albillo, Doña Blanca, Godello, Legiruela, Malvasía, Puesta en Cruz, Rufete Blanco, Sauvignon Blanc, Verdejo and Viognier and the red wines with Bruñal, Cabernet Sauvignon, Cenicienta, Estaladiña, Juan García, Mandón, Mencía, Merenzao, Merlot, Negro Saurí, Prieto Picudo, Tempranillo, Tinta de Toro. The preliminary results obtained are very interesting and indicate that regardless of the winery, the wines of each variety have their own characteristics, showing a lower capacity to consume oxygen in white wines made with Puesta en Cruz, Rufete Blanco, Viognier or Albillo, which is reflected in their lower browning compared to wines made with Albarín, Verdejo or Sauvignon Blanc, which have a higher browning rate. In the case of red wines, those made with Mandón, Cenicienta or Juan García show a greater capacity to consume oxygen than those made with Negro Saurí, Merenzao or Estaladiña.

Acknowledgements: ITACyL for their financial support to Actividades de Investigación, Promoción de la Innovación y la Transferencia del Conocimiento en Sectores Estratégicos de Castilla y León: SECTOR VITIVINÍCOLA

References:

  1. Oliveira, C. M., et al. (2011) Oxidation mechanisms occurring in wines. Food Res. Int 44(5), 1115–1126 DOI 10.1016/j.foodres.2011.03.050
  2. Del Alamo-Sanza, M et al (2021) Air saturation methodology proposal for the analysis of wine oxygen consumption kinetics. Food Res. Int, DOI 10.1016/j.foodres.2021.110535

DOI:

Publication date: October 13, 2023

Issue: ICGWS 2023

Type: Poster

Authors

María del Alamo-Sanza*, Aitana de Torre, María Asensio-Cuadrado, Marioli Carrasco-Quiroz, Rubén del Barrio-Galán, Ana Martínez-Gil, Luis Miguel Cárcel-Cárcel, Teresa Garde-Cerdán, Ignacio Nevares

1Grupo UVaMOX-Universidad de Valladolid. Ava. Madrid 50 34001 Palencia

Contact the author*

Keywords

oxidation, wine, phenols, browning, oxygen consumption capacity

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Effect of two water deficit regimes on the agronomic response of 12 grapevine varieties cultivated in a semi-arid climate

The Mediterranean basin is one of the most vulnerable regions to Climate Change effects. According to unanimous forecasts, the vineyards of Castilla-La Mancha will be among the most adversely affected by rising temperatures and water scarcity during the vine’s vegetative period. One potential strategy to mitigate the negative impacts of these changes involves the identification of grapevine varieties with superior water use efficiency, while ensuring satisfactory yields and grape quality.

Overall conceptual characterization of aged dry white wines using a mental descriptive questionnaire

The purpose of the present study was to understand the overall concept of an aged dry white wine using a descriptive mental questionnaire. A total of 680 worldwide participants, grouped according to their involvement in the wine business, replied to an online questionnaire to characterize the sensory analytical and synthetic descriptors of an aged dry white wine. The descriptors were selected using a Check-All-That-Apply (CATA) approach concerning wine colour, aroma, taste, mouthfeel, and global appreciation.

Anthocyanin content and composition of Merlot grapes under temperature and late pruning conditions 

One of the main aspects of Climate Change is the increase of temperatures during summer and grape maturity period. Physiological processes are influenced by these high temperatures and result in grapes with higher sugar concentration, less acidity and less anthocyanin content among other quality changes. One strategy to deal with the climate change effects is the implementation of late winter pruning to alter the effect of high temperatures during key periods by delays in maturity time.

Application of antagonistic Metschnikowia strains against Botrytis cinerea in vineyards 

Less and less chemical plant protection products are approved by the E U. Plant pathogenic fungi become increasingly resistant to the active ingredients that have been around for a long time. Besides, there is a valid demand for effective products that can be applied in organic cultivation.
We examined Metschnikowia strains under laboratory conditions in order to find effective strains against B. cinerea. The antimicrobial mechanism of these yeasts is based on the competition for the ferric ions from the environment. Metschnikowia cells release the pulcherriminic acid which chelates with Fe3+, forming the pigment pulcherrimin.

Predicting provenance and grapevine cultivar implementing machine learning on vineyard soil microbiome data: implications in grapevine breeding

The plant rhizosphere microbial communities are an essential component of plant microbiota, which is crucial for sustaining the production of healthy crops. The main drivers of the composition of such communities are the growing environment and the planted genotype. Recent viticulture studies focus on understanding the effects of these factors on soil microbial composition since microbial biodiversity is an important determinant of plant phenotype, and of wine’s organoleptic properties. Microbial biodiversity of different wine regions, for instance, is an important determinant of wine terroir.