Macrowine 2021
IVES 9 IVES Conference Series 9 Impact of cover crop in vineyard on the musts volatile profile of Vitis vinifera L. Cv Syrah

Impact of cover crop in vineyard on the musts volatile profile of Vitis vinifera L. Cv Syrah

Abstract

Grape aromatic characteristics are very important for the production of quality wines. The concentrations of volatile compounds in grape berries from vines with cover crops have been scarcely studied. For this reason, the aim of this work was to evaluate the influence of “Zulla” cover crop on the volatile profiles of organically grown Shyraz variety grapes. For this purpose, volatile profiles of grapes obtained from vines with three different amount of cover crop (one line, two lines and four lines) and without cover crop, over two harvests (2019 and 2020) were determined. The grape samples came from Jerez a warm climate zone. Must volatile compounds were determined by sequential sorptive extraction with Twisters by immersion (SBSE) and headspace (HSSE), followed by GC-MS analysis [1]. A total of 159 compounds were determined and, most of them were influenced by the presence of cover crop. The amount of methyl ester was directly correlated with the amount of “Zulla” cover crop. The results of principal component analysis (PCA) showed that PC1 grouped the samples according harvest and PC2 according to amount of cover crop, separating clearly the samples obtained without cover crop, in both harvests. It was observed a reduction of free volatile compounds when the amount of cover crop applied increased, in both harvests. Then, cover crop had an effect over volatile profile of Shyraz grapes.

DOI:

Publication date: September 7, 2021

Issue: Macrowine 2021

Type: Article

Authors

Eva Valero

Nutrition and Bromatology Area, Department of Molecular Biology and Biochemical Engineering, University Pablo de Olavide, Seville, Spain.,F. Arranz, Nutrition and Bromatology Area, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Seville, Seville. Spain. B. Puertas, Agricultural and Fisheries Research and Training Institute (IFAPA), Rancho de la Merced. 11407, Jerez de la Fra. Spain. M.L. Morales, Nutrition and Bromatology Area, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Seville, Seville. Spain

Contact the author

Keywords

zulla cover crop, free volatile compounds, ecological crop

Citation

Related articles…

Soil and nutritional survey of Greek vineyards from the prefecture of Macedonia, Northern Greece, and from the island of Santorini

Vitis vinifera L. is one of the most important cultures for the soil and
climate conditions of Northern Greece and Santorini. However, very little information is provided with regard to its nutritional requirements and critical levels of nutrient deficiencies and toxicities. The aim of this study was to provide an integrated nutritional survey for the Greek conditions of wine and table varieties.

Read More

Spontaneous fermentation dynamics of indigenous yeast populations and their effect on the sensory properties of Riesling

Varietal Riesling aroma relies strongly on the formation and liberation of bound aroma compounds. Floral monoterpenes, green C6-alcohols, fruity C13-norisoprenoids and spicy volatile phenols are predominantly bound to disaccharides, which are produced and stored in the grape berry during berry maturation. Grape processing aims to extract maximum amount of the precursors from the berry skin to increase the potential for a strong varietal aroma in the wine. Subsequent yeast selection plays an important part in this process.

Read More

Method for the evaluation of climatic changes envisaging the protection of grape-growing terroirs: the Géoviticulture MCC system in the evaluation of the potential impact of the construction of hydroelectric power plants on viticulture

La recherche, conduite en 2002, a envisagé l’estimation, a priori, de l’effet du changement mesoclimatique sur le potentiel qualitatif de la région viticole de la Serra Gaúcha (Vallée du Rio das Antas) – Brésil, en fonction de la construction de 3 usines hydroélectriques.

Read More

First disclosure of eugenol precursors in Vitis genus: analytical development and quantification

The main aim of this work was to develop an analytical method to disclosure the
molecular form of eugenol precursor. Indeed eugenol is an important contributor to
Armagnac spirits typicity made with Baco blanc.

Read More

Bees, climate changes, and “environmental sustainability 4.1c” in viticulture and the territory for a new global multiproductive “biometaethical district 4.1c”

The use of bees as pollinators in vine varieties with physiologically female flowers (Picolit, Bicane, Ceresa, Moscato rosa, etc.) (Cargnello, 1983) and as bio-indicators for biodiversity and environmental sustainability is well-known. Furthermore, there are interests in: 1-a. Making the viticulture of Belluno (Province of Veneto in North-eastern Italy, which is also famous for the Dolomites -a UNESCO World Heritage-) regain the socioeconomic role which it is entitled to and which it had got in its past by aiming at the enhancement of local grape variety in harmony with others, for example with the neighboring area of the Conegliano and Valdobbiadene Prosecco Superiore DOCG; 2-a. Maintaining and further improving the important natural and healthy environment of Belluno, and making its territory and the “lookout” means of the environmental sustainability, including its vineyards, even more naturally original and sustainable 4.1C.

Read More