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…

The colour pattern of flower arrangements influence wine tasters’ sensory description

The arrangements of flowers and wine counterparts are inextricably linked. Whether a fundamental aspect of tablescaping or acolytes to broader entertainment rituals, they have an entangled history since ancient times. The aim of this contribution is to verify the influence of visually delicate and robust flower arrangements on individual description of wines. Changes in the sensory description of wines were investigated during subjects’ (thirty-two participants) exposure to three different conditions: the presence of delicate, robust, or totally absent flower arrangements. In each condition, the same two wines were blind tasted: a wine previously defined as delicate – a Pinot Noir from Australia, and a wine known for its robust character – a Tannat from Uruguay.

Tackling the 3D root system architecture of grapevines: a new phenotyping pipeline based on photogrammetry

Plant roots fulfil important functions as they are responsible for the acquisition of water and nutrients, for anchorage and stability, for interaction with symbionts and, in some cases, for the storage of carbohydrates. These functions are associated with the Root System Architecture (RSA, i.e. the form and the spatial arrangement of the roots in the soil). The RSA results from several biological processes (elongation, ramification, mortality…) genetically determined but with high structural plasticity.

Aroma characterization of mold resistant base wines for sparkling wine produced in a warm-temperate area at two different altitudes

In a recent context where consumers pay an increasing attention to sustainability and eco-friendly aspects in the decision-making process, the use of the resistant varieties in the wine sector have returned to the attention. In this context, the use of mould-resistant grape varieties would be an opportunity for sparkling wine producers as it can reduced the pesticide utilization in grape management and hence production costs.
However, the use of the resistant varieties to produce the base wine may be strongly influenced due to its requirements for a particular balance between sugars and acidity to ensure the quality of the final product. In addition, the aromatic profile of base wine plays a crucial role in the perception of the quality of the sparkling wine.

Sensory profile of wines obtained from disease-resistant varieties in La Rioja

The European wine industry is facing multiple challenges derived from climate change and the pressure of different fungal diseases that are compromising the production of traditional varieties. A sustainable alternative maybe the adoption of resistant varieties.
In this study, we have evaluated the enological potential of 9 resistant varieties (5 white and 4 red varieties) in La Rioja. Microvinifications were carried out with three biological replications. Oenological parameters were very diverse with acid content varying from 2.6 g/L to 6.6 g/L.

Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts

Multiple sclerosis (MS) is a multifactorial autoimmune disease associating demyelination and axonal degeneration developing in young adults and affecting 2–3 million people worldwide. Plant polyphenols endowed with many therapeutic benefits associated with anti-inflammatory and antioxidant properties represent highly interesting new potential therapeutic strategies. We recently showed the safety and high efficiency of grape seed extract (GSE), a complex mixture of polyphenolics compounds comprising notably flavonoids and proanthocyanidins, in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS.