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…

Distribution analysis of myo and scyllo-inositol in natural grape must

s it is well known, myo and scyllo-inositol are two characteristic sugars of grape must and, for this reason, their quantification has been proposed to control the authenticity of the concentrated and rectificated grape must.

Making sense of a sense of place: precision viticulture approaches to the analysis of terroir at different scales

Agriculture, natural resource management and the production and sale of products such as wine are increasingly data-driven activities. Thus, the use of remote and proximal crop and soil sensors to aid management decisions is becoming commonplace and ‘Agtech’ is proliferating commercially; mapping, underpinned by geographical information systems and complex methods of spatial analysis, is widely used…

Use of fumaric acid to control pH and inhibit malolactic fermentation in wines

In this audio recording of the IVES science meeting 2022, Antonio Morata (Universidad Politécnica de Madrid, Madrid, Spain) speaks about the use of fumaric acid to control pH and inhibit malolactic fermentation in wines.

Effect of biological control agents on grapevine rhizosphere microbiome and grapevine defenses

Plant diseases are a major obstacle to crop production. The main approaches to battle plant diseases, consist of synthetic chemicals to attack infecting pathogens. However, concerns are increasing about the effects of chemicals in the environment, leading to an increase in the use of biocontrol agents (BCAs), due to their assets, such as, antagonism, and competition. In this study, we tested the hypothesis that the introduction of Bacillus subtilis PTA-271 (Bs PTA-271) and Trichoderma atroviride SC1 (Ta SC1) produce distinctive modifications in the composition and network structure of the grapevine rhizosphere microbial community, as well as grapevine induced defenses.

Grapegrowing soils

The soil plays a key role in viticulture since it defines the planting depth, development and aeration of the root system and also controls the absorption of mineral elements and water conditions of the plant