מכון היצוא

Italy and Israel wine project

​Strategies For The Improvement Of White And Red Wines Longevity
Obtained In Different Climate Contests
Vine is a species that is particularly sensitive to climate variations, indeed vintage has always been a core issue for wine production. This clearly shows how much climate change which we are currently witnessing determine important variations in the quality of the grapes and related wines. Progressive global warming has essentially determined the following macroscopic effects: grape ripening advance, higher sugar values, lower acid content and loss of anthocyanin pigments in black grapes

As a result, wines with excessive levels of ethanol are becoming increasingly frequent, with the pH being too high and so sensitive to microbial contamination that are often characterized by the presence of off-flavour (e.g. phenolic odour) due to the same and / or effects of excessive exposure to high temperatures and solar radiation of the grapes themselves (as naphthalene odour or atypical aging)

One of the main effects due to variations in the composition of grapes is the lesser longevity of the wines produced with it, due to a greater sensitivity to oxidation and to the lower presence of endogenous molecules with natural antioxidant action in the same grapes; both due to the lower efficacy of antioxidants treatments (using sulphites) on grapes and wines with higher pH

The scientific community and the producer world are questioning and looking for possible solutions at the level of raw material production, prevention of adverse climatic conditions (excessive rainfall, drought, hailing) and precision oenology aimed at identifying technology strategies that allow to produce quality wines and capable to age.
In this context, the possibility of exchanging knowledge and experimenting with different viticultural realities; in terms of both latitude and soil types of the territories and implanted varieties, would enable to analyse and test effective and competitive tools for wine producers

The factors involved in oxidative aging of wines and the development of preventive strategies will be studied. The scientific knowledge on the qualitative and oxidative decay of wines over time will be further explored. Molecular markers to monitor the evolutionary state of the wines will be identified; the strategic protocols that will allow to determine the oxygen tolerance of each wine will be defined and, consequently, the best aging and shelf-life management techniques of wines will be determined

The implications of the current project will be: a) the exchange of knowledge between countries that have developed specific wine-growing strategies for dealing with different climatic contexts; b) improve the stability and longevity of wines in both countries involved; c) produce wines from local and international varieties with aging capabilities of quality products; (d) identify the grape varieties that are most likely able to face the specific climatic contexts. The process will involve the study of kosher productions and on the modern techniques that favour the high quality of the product

For the  Sixteenth Call for Proposals for Joint R&D Projects – 2018 click here

 
For further information
ITALY
Ministero degli Affari Esteri e della Cooperazione Internazionale D.G.S.P. – Ufficio IX certified 
E-mail: dgsp09.pec@cert.esteri.it - for official submission
E-mail: accordo.italiaisraele@esteri.it - for general information
 
ISRAEL 
Ran Arad Program Manager ISERD
Tel: +972-3-5118152 
E-mail: ran@iserd.org.il 


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