 IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Grapevine diversity and viticultural practices for sustainable grape growing 9 Targeted UHPLC-QqQ-MS/MS metabolomics for phenol identification in grapevine and wine: study of a Tempranillo clone with a dark-blue berry colour

Targeted UHPLC-QqQ-MS/MS metabolomics for phenol identification in grapevine and wine: study of a Tempranillo clone with a dark-blue berry colour

Abstract

Grapevine vegetative multiplication allows the accumulation of spontaneous mutations and increase intra-cultivar genetic diversity that can be exploited to maintain grape wine quality, tipicity and adaptation to different climate conditions. Non-volatile phenolic compounds are intrinsic components of grape fruits and derived products, particularly wine. They constitute a heterogeneous family of compounds and play an important role on the sensorial attributes of wine because they are responsible for some of important organoleptic properties as colour, flavour, bitterness and astringency. In the present study, we used a targeted metabolomics approach based on ultra-high performance liquid chromatography with tandem mass spectrometry (UHPLC-QqQ-MS/MS) to study the anthocyanin and non-coloured phenol profiles of a singular Tempranillo clone (Tempranillo negro or VN21), characterized by a dark-blue color in grape berry skin, as compared to RJ43, one of the most cultivated clones in D.O.Ca. Rioja (Spain). In addition, we investigated differences between VN21 and RJ43 clones, in the phenolic transference from grape to wine at different phases of the winemaking process. The results showed that anthocyanin and non-colored phenol content was higher in VN21 grape skin and seeds than in RJ43. With respect to anthocyanins, the singular color of grape skin in VN21 could be explained by higher concentrations of peonidin and cyanidin derivatives. Regarding non-colored phenols, the main differences were observed for proanthocyanidins and stilbenes concentration in grape skin and more importantly in seeds. Those content differences observed in berries were enhanced in the VN21 wines, displaying significantly higher concentrations of anthocyanins, as well as significantly increased contents of mainly proanthocyanidins and stilbenes. The results manifest the importance of intra-cultivar genetic diversity to obtain red wines with a high phenolic content, responsible of key quality aspects of the wine such as organoleptic properties, stability, complexity and health benefits. Moreover, this study exemplifies how spontaneous somatic variation can be used through grapevine clonal selection combining metabolomic analyses.

FUNDING SOURCES

This work was partially supported by project BIO2017-86375-R from the Spanish Ministry of Economy and Competitiveness (co-funded by the European Social Fund, European Union); YF was supported by a grant from Government of La Rioja; M.J. Motilva thanks to CSIC for partial funding through the “Ayudas incorporación a escalas científicas CSIC, 2018” (Reference 201870I129).

DOI:

Publication date: September 2, 2021

Issue: Macrowine 2021

Type: Article

Authors

Yolanda Ferradás

Instituto de Ciencias de la Vid y del Vino (Consejo Superior de Investigaciones Científicas, Universidad de La Rioja, Gobierno de La Rioja), Finca La Grajera, Ctra. de Burgos Km. 6 (LO-20 – salida 13). 26007 Logroño (La Rioja), Spain,Carolina ROYO, José Miguel MARTÍNEZ-ZAPATER and María José MOTILVA Instituto de Ciencias de la Vid y del Vino (Consejo Superior de Investigaciones Científicas, Universidad de La Rioja, Gobierno de La Rioja), Finca La Grajera, Ctra. de Burgos Km. 6 (LO-20 – salida 13). 26007 Logroño (La Rioja), Spain

Contact the author

Keywords

anthocyanins, berry phenolic composition, wine phenolic composition, somatic variation, grapevine, phenolic compounds, stilbenes, tempranillo

Citation

Winemaking options for the improvement of the attributes of the wines from grapes with different oenological potential and sanitary status

The aim of this work was to study winemaking alternatives that will optimize the quality of the Tannat wines, taking advantage of the grape’s oenological potential.

Ugni blanc berry and wine composition impacted by thirteen rootstocks

The Cognac region is expanding, driven by the success of its renowned brandy and the demand for high grape yields to ensure a steady supply of base wine for distillation. Ugni blanc, the most widely planted grape variety, relies on rootstocks for soil and climate adaptation, providing essential nutrient supplies to the scion. Understanding the impact of rootstocks on key berry components, such as sugars and nitrogen compounds, is crucial. These compounds serve as primary precursors for the production of fermentative aroma metabolites, which, in turn, act as quality indicators for eau-de-vie.

Guard cells and stomatal movement reveal early molecular interaction between grapevine cells and esca-associated pathogens

Esca is one of the major grapevine trunk diseases that cause vineyards decline and important economic losses in vineyards.

Terpenoids and norisoprenoids in italian red wines

AIM Terpene compounds are associated with floral notes and are characteristic of aromatic grape varieties such as Muscat (Jackson, 2008). They are generally considered to potentially contribute to the aroma of white wines. However, there is a growing interest towards the potential contribution of terpene compounds to the aroma of red wines. The aim of this work was to investigate the occurrence of different terpenes in red wines from Italian varieties. METHODS For this study wines from 11 mono-varietal Italian red wines from 12 regions were used (19 Sangiovese, 11 Nebbiolo, 10 Aglianico, 11 Primitivo, 10 Raboso del Piave, 9 Cannonau, 11 Teroldego, 3 Nerello, 9 Montepulciano, 7 Corvina). All samples were from vintage 2016 and none of them had been in contact with wood. A total of 19 terpenes and 7 norisoprenoids were analysed by mean of SPME-GC-MS analysis using a DVB-CAR-PDMS fiber. The wines were collected in the framework of the activities of the D-Wines (Diversity of Italian wines) project.

Revisiting the effect of subsurface irrigation and partial rootzone drying on canopy size and yield of Cabernet Sauvignon using remote sensing techniques

Irrigation is an essential tool for grape production, especially where rainfall does not meet the optimal water requirements needed to achieve yield and quality targets. Increased evaporative demand of grapevines due to changing climate conditions, and a growing awareness for sustainable farming, require the improvement of irrigation techniques to maximize water use efficiency, i.e. using less water to achieve the same yields or the same water but larger yields. In this study, the performance of Cabernet Sauvignon vines was compared under three irrigation techniques: conventional aboveground drip irrigation, subsurface irrigation installed directly under the vine row, and partial rootzone drying in which two subsurface lines were buried in the middle of the two interrow spacings on each side of the vine row with irrigation alternated between the two lines based on soil moisture content.