WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 3 - WAC - Oral 9 Effect of post-harvest ozone treatment on secondary metabolites biosynthesis and accumulation in grapes and wine

Effect of post-harvest ozone treatment on secondary metabolites biosynthesis and accumulation in grapes and wine

Abstract

The actual demand by consumers for safer and healthier food and beverage is pushing the wine sector to find alternative methods to avoid the use of sulphur dioxide in winemaking. Ozone is already used in the wine industry to produce sulphur dioxide-free wines through the patented method Purovino®. This study aims to evaluate the effects of ozone treatment used for Purovino® method on grapes berry metabolism and wine quality. Harvested wine grapes (Vitis vinifera L. cv Sangiovese) were fumigated overnight with gaseous ozone. After the treatment grapes were processed to make wine. The technological parameters, volatiles and expression of genes involved in polyphenols and volatile biosynthesis have been analysed in grapes. The aromatic and phenolic profile of the resulting wine has also been assessed. In grapes, ozone treatments increase polyphenols and total flavonoids and consistently specific genes involved in polyphenol biosynthesis were up-regulated. In the resulting wine ozone fumigation increase flavonols content. Additionally, ozone exposition slightly affects the aromatic profile of grapes and wine, mainly due to changes in aroma compounds derived from the lipoxygenase pathway. Overall, the results show that post-harvest ozone treatments applied to avoid the use of sulphur dioxide induce limited but, in general, positive changes in grape and wine. This information could be of great interest for wine makers that, when using ozone treatments are guaranteed in terms of maintenance of quality and typical traits of wines.

DOI:

Publication date: June 13, 2022

Issue: WAC 2022

Type: Article

Authors

Margherita Modesti, Stefano, Brizzolara, Roberto, Forniti, Brunella, Ceccantoni, Andrea, Bellincontro, Andrea, Bellincontro, Fabio, Mencarelli, Pietro, Tonutti, Cesare, Catelli

Presenting author

Margherita Modesti – Department for innovation in biological, agro-food and forest system (DIBAF), Tuscia University – Via San Camillo de Lellis snc, 01100 Viterbo, Italy

Institute of Life Sciences, School of Advanced studies Sant’Anna, Piazza Martiri della Libertà, 33 56127 PISA, ITALY, Department for innovation in biological, agro-food and forest system (DIBAF), Tuscia University – Via San Camillo de Lellis snc, 01100 Viterbo, Italy, P.C. di Pompeo Catelli S.R.L., Via Roma 81, Uggiate Trevano, 22029 Como, Italy, Department of Agriculture Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy Institute of Life Sciences

Contact the author

Keywords

Ozone, Purovino, sulphur dioxide free wine, flavonoids, flavonols

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Discriminant value of soil properties for terroir zoning

Environmental analysis (climate, vegetation, geomorfoloy-lanscape, lithology and soil) and its integration in a quality index taking the Appellation of Origin as the sole universe are used as general methodology for terroir zoning in Spain (Sotés and Gómez-Miguel, 1986-2005). This methodology is also applied to specific aspects of different Spanish Appellations of Origin (size, distribution and landscape peculiarities and vine occupation index).

Read More

Study of wine-growing land (“terroir”) characteristics in the canton of Vaud (Switzerland): ecophysiological behaviour of the vine (cv. Chasselas)

A study of the physiological and agronomical behaviour of the vine (cv. Chasselas) was conducted between 2001 and 2003 by the Swiss Federal Research Station for Plant Production at Changins (Agroscope RAC Changins) on various wine-growing farms (terroirs) in the Canton of Vaud (Switzerland), as part of a study project on Vaudois

Read More

Climate change projections in serbian wine-growing regions

Changes in bioclimatic indices in wine-growing region of Serbia are analyzed under the RCP 8.5 IPCC scenario.

Read More

Influence of different strains of lab on quality of catarratto wine produced in sicily

AIM: Lactiplantibacillus plantarum and Oenococcus oeni species is worldwide used as starter for malolactic fermentation [1, 2].

Read More

The grapesim model: a model to better understand the complex interactions between carbon and nitrogen cycles in grapevines

Nitrogen fertilization is an important practice to guarantee vineyards sustainability and performance over years, while ensuring berry quality. However, achieving a precise nitrogen fertilization to meet specific objectives of production is difficult. There is a lack of knowledge on the impact of nitrogen fertilizers (soil/foliar; organic/mineral) and different levels of fertilization on the interactions between carbon and nitrogen cycles within the vine. Crop models may be useful in that purpose because they can provide new insights of the effects of fertilization in carbon and nitrogen storage. The objective of this study is to build a model to simulate grapevine carbon and nitrogen content in vines to evaluate the impact of different fertilization strategies in vine growth and yield.

Read More