terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Chemical and microbiological evaluation of Ribeiro wines (NW Spain)

Chemical and microbiological evaluation of Ribeiro wines (NW Spain)

Abstract

Wine produced under Designation of Origin (DOP) Ribeiro, the oldest DOP in Galicia (NW Spain), are elaborated using local grape cultivars, grown at the valleys of Miño, Avia and Arnoia rivers. The landscape formed by slopes and terraces and the peculiar climate of continental character, softened by the proximity of Atlantic Ocean, make it an area of excellent aptitude for vine cultivation. In addition, small-scale farming and the use of traditional techniques for vineyard management provide a great diversity to Ribeiro wines. This study presents the evaluation of red and white wines (bottled or bulk wines) from DOP Ribeiro, produced between years 2018-2022. Standard parameters of wine and the presence of biogenic amines were determined using OIV methodology. Residues of fungicides and insecticides were assessed by liquid chromatography tandem mass spectrometry (LC-MS/MS). Volatile aroma compounds were extracted by LLE and determined by GC-MS. Microbiological control of the wines by filtration allowed to detect the presence of microorganisms and their potential risk on wine spoilage. The results confirmed the diversity of Ribeiro wines and their chemical quality at both desirable properties and health concerning. Thus, volatile composition analysis allowed to observe differences among vintages and valleys. The average content of biogenic amines was 4.89 mg/L, and only 12% of the samples exceeded 10 mg/L. Residues of authorized pesticides were often detected in most of wines at concentrations above 10 mg Kg-1, but below the maximum residues limits (MRLs) defined by the EU in vinification grapes. In addition, all wines were analyzed by 1H NMR spectroscopy and a preliminary model of the DO. Ribeiro was built with the spectra of white wines.

Acknowledgements: Project AC2021E-02, Consellería do Medio Rural – Xunta de Galicia with funds from FEADER, MAPAMA and CCAA Galicia.

DOI:

Publication date: October 13, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Pilar Blanco1*, Mar Vilanova2, Elvira Soto1, Bianca S. Costa2, Eva López-Rituerto3, Victoria Fernández-Fernández4, Isaac Rodriguez 4

1Estación de Viticultura e Enoloxía de Galicia (EVEGA-AGACAL), Ponte San Clodio s/n, 32428, Leiro-Ourense
2Instituto de Ciencias de la Vid y del Vino (CSIC, Universidad de La Rioja, Gobierno de La Rioja). Ctra. de Burgos, Km. 6. 26007 Logroño
3Estación Enológica de Haro, C\ Bretón de los Herreros, 4. 26200 Haro (La Rioja)
4Universidade de Santiago de Compostela (USC)-Instituto de Investigación en Análisis Químicos y Biológicos (IAQBUS), Constantino Candeira s/n, Campus Sur/Campus Vida, 15782 Santiago de Compostela

Contact the author*

Keywords

DOP Ribeiro wines, volatiles, residues, biogenic amines, microbiological control

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Extreme vintages affect grape varieties differently: a case study from a cool climate wine region

Eger wine region is located on the northern border of grapevine cultivation zone. In the cool climate, terroir selection is one of the foundations of quality wine making. However, climate change will have a significant impact on these high value-added vineyards. This study presents a case study from 2021 and 2022 with the investigation of three grape varieties (Kadarka, Syrah, Furmint). The experiment was conducted in a steep-sloped vineyard (Nagy-Eged hill) with a southern exposure.

Read More

Uncovering the interplay between Copper and SO2 tolerance in Saccharomyces cerevisiae

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...
Read More

Sustainable management of grapevine trunk diseases

Grapevine trunk diseases (GTD) occur wherever grapes are grown and are considered the main biotic factor reducing yields and shortening vineyards’ lifespan. Currently, no product is available to eradicate GTD once grapevines are infected. Therefore, prophylactic strategies based on pruning wound protection and ‘remedial surgery’, the only eradication method based on the elimination of infected wood and renewal of the vine by means of new canes or suckers, are the only effective strategies available. The Canadian grape and wine industry focusses on a sustainable production and thus, looking for alternatives to chemicals for disease management is a top priority.

Read More

Genetic prospecting of rainfed viticulture in the region with the largest cultivated area in Chile

The Maule region hosts up to a third of the total area of vineyards in Chile, in an environment where ancient practices inherited from the colonial past coexist with modernity and dynamism that include technified irrigation and fine vines. In the dry land of Maule there is a viticulture that has subsisted with ancient vines and traditions transmitted over generations, and there is little clarity about the origin and classification of the Maule viticulture, giving rise to the use of different concepts as synonyms to describe the ancient, minority, patrimonial or Criollas vines. In order to characterize and protect the ancient material, we studied the genetic diversity of a territorial collection that covers 80% of the communes of the region, prioritizing plants established more than 40-60 years ago.

Read More

Under-vine management effects on grapevine vegetative growth, gas exchange and rhizosphere microbial diversity

The use of cover crops under the vines might be an alternative to the use of herbicides or tillage, improving grapevine quality and soil characteristics. The aim of this research was to study the implications of different management strategies of the soil under the vines (herbicide, cultivation or cover crops) on grapevine growth, water and nutritional status, gas exchange parameters and belowground microbial communities.
The experimental design consisted in 4 treatments applied on 35L-potted Tempranillo vegetative grapevines with 10 replicates each grown in an open-top greenhouse in 2022 and 2023. Treatments included two cover crop species (Trifolium fragiferum and Bromus repens), herbicide (glyphosate al 36%) and an untreated control.

Read More