terclim by ICS banner
IVES 9 IVES Conference Series 9 OIV 9 OIV 2024 9 Orals - Oenology, methods of analysis 9 “Gentle” sustainable extraction from whole berry by using resonance waves and slight over CO2 overpressure

“Gentle” sustainable extraction from whole berry by using resonance waves and slight over CO2 overpressure

Abstract

The traditional methods of grape extraction of enochemical compounds use very often mechanical energy by pistons such as the pigeage or mechanical energy produced by must (delestage, pumping over). Recent trend by winemaker is trying to introduce in the fermentation tank, whole berry grape to avoid even minimal oxidation. Unfortunately, the use of the traditional mechanical techniques aforementioned, very often does not guarantee the optimal extraction of polyphenols and above all does not assure an uniform temperature in the vessel. Use of resonance waves (AM =AIRMIXING MI TM) or a slight overpressure by CO2 (ADCFTM) permits to work on whole berry guaranteeing the perfect extraction and homogenize the temperature and the oxygen in all the mass. In AM, the great goal to have an uniform temperature in all the tank, permits the winemaker to decide which temperature using to ferment and to extract depending on the wine style she/he wants to reach. This presentation we will summarize data on experimental works done with these two techniques and we show, beyond the theoretical explanation, the kinetic of extraction of different phenol classes and of volatile organic compounds even in the production of wine without sulfite addition.

Estrazione gentile e sostenibile da acino intero utilizzando onde di risonanza e sovrapressione

I metodi tradizionali di estrazione dei composti enochimici dall’uva utilizzano molto spesso l’energia meccanica mediante pistoni come il pigeage o l’energia meccanica prodotta dal mosto (delestage, rimontaggi). La recente tendenza dell’enologo sta cercando di introdurre nel serbatoio di fermentazione l’uva a bacca intera per evitare anche la minima ossidazione. Purtroppo, l’utilizzo delle tradizionali tecniche meccaniche sopra citate, molto spesso non garantiscono l’estrazione ottimale con rimanenza di zuccheri residui nelle vinacce. L’utilizzo di onde di risonanza (airmixingtm) e una leggera sovrapressione da parte di CO2 (adcftm) permettono di lavorare sull’acino intero garantendo la perfetta estrazione. In questa presentazione presenteremo i dati di un lavoro sperimentale svolto con queste due tecniche in cui mostriamo, oltre alla spiegazione teorica, la cinetica di estrazione di diverse classi fenoliche e anche di composti organici volatili anche nella produzione di vino senza aggiunta di solfiti.

Extraction douce et durable de baies entières par ondes de résonance et surpression

Les méthodes traditionnelles d’extraction des composés œnochimiques du raisin utilisent très souvent de l’énergie mécanique par pistons comme le pigeage ou de l’énergie mécanique produite par le moût (délestage, remontage). La tendance récente des vignerons consiste à introduire dans la cuve de fermentation des raisins à baies entières pour éviter même une oxydation minime. Malheureusement, l’utilisation des techniques mécaniques traditionnelles évoquées plus haut, ne garantit bien souvent pas une extraction optimale des sucres résiduels dans le marc. L’utilisation d’ondes de résonance (airmixingtm) et d’une légère surpression de CO2 (adcftm) permettent de travailler sur baie entière garantissant une extraction parfaite. Dans cette présentation nous présenterons les données d’un travail expérimental réalisé avec ces deux techniques où nous montrons, au-delà de l’explication théorique, la cinétique d’extraction de différentes classes de phénols ainsi que de composés organiques volatils même dans la production de vin sans ajout de sulfites.

DOI:

Publication date: November 18, 2024

Issue: OIV 2024

Type: Article

Authors

Fabio Mencarelli¹, Giuseppe Floridia², Stefano Pettinelli¹, Andrea Uliva²

¹ Wine research consultant, Via Poggio di Montemagno 19, Calci (PI), Italy
² Parsec SRL, Italy

Contact the author*

Tags

Full papers OIV 2024 | IVES Conference Series | OIV | OIV 2024

Citation

Related articles…

Overcoming habit formation in the production of wine

Evidence indicates that climate change affects the environment, human health, and well-being via drought, increasing greenhouse effect, and climatic catastrophes. As the wine sector is also negatively affected by climate change, the role of climate change mitigation and adaptation policies is important in wine production. One example of an adaptation policy is the implementation of grapevine genetics (duchene, 2016), while organic farming may be used as an approach to mitigate the consequences of climate change (vinci et al., 2022). To this end, the european commission’s objective is to reach the european green deal target of at least 25% of the european union’s agricultural land under organic farming by 2030.

Towards more coherent rules for alcohol labelling in the European Union

In its 2020 beating cancer plan, the european commission announced plans for mandatory warning signs for alcoholic beverages. However, no concrete legislative proposal has been put forward so far. Instead, ireland passed national legislation in 2023 that requires warning signs for all alcoholic beverages from 2026. Despite significant effects for the common market, the eu commission did not this challenge this law in the so-called tris notification procedure. We argue that the commission’s inaction is consistent with the case law of the european court of justice: in the absence of harmonized rules, member states have a large margin of discretion to enact national health measures.

Caracterización sensorial y preferencias de los consumidores en vinos de crianza biológica elaborados a diferente graduación alcohólica

Las tendencias actuales del mercado apuntan hacia el consumo de vinos con menor contenido en alcohol, y, por otra parte, de vinos con características especiales y diferenciadoras, siendo los vinos con indicación geográfica o denominación de origen los más demandados.

GrapeBreed4IPM: A horizon Europe project for sustainable viticulture through multi-actor breeding and innovation

Biodiversity loss and ecosystem degradation are among the greatest challenges of our time, and agriculture’s use of pesticides is a major driver.

What drives Indications of Geographical Origin protection and governance mechanisms in the U.S. and European contexts? A contribution of the social sciences

There are fundamentally two different ways in which indications of geographical origin (igos) can be protected. The us approach favors the pre-existing trademark system through collective marks (cms), while the eu approach favors a maximalist approach via a sui generis system which promotes appellations of origin (aos). A consensus however emerges regarding the fundamental protection of origin against misleading, confusing and dilutive uses. Previous literature discusses these competing igo logics from historical, legal and international trade perspectives. In this paper, we depart from the field of social sciences, in particular from recent advancements in the well-established literature on proximities, in order to provide a reflection on the different logics underpinning the aos and cms systems.