WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 3 - WAC - Oral 9 Changes in white wine composition after treatment with cationic exchange resin: impact on wine oxidation after 8 years of bottle storage

Changes in white wine composition after treatment with cationic exchange resin: impact on wine oxidation after 8 years of bottle storage

Abstract

Samples from 3 wine types were treated with a cationic exchange resin (7 lots) and stored for 8 years (47 samples). Forty-seven parameters were determined, including (1) important substrates with impact in white wine oxidation and (2) markers of oxidation. From group 1, sugars, elements, phenolic compounds, α-dicarbonyls and SO2 and from group 2, browning (A420), acetaldehyde, alkanals, furanic compounds were quantified.

Results regarding the cationic exchange resin impact after storage shown that is dependent on wine composition. Good correlations with browning were obtained for wines with higher concentration of phenolic compounds (flavan-3-ols, protocatechuic and coumaric acids) and copper. While aromatic degradation related with the formation of Strecker aldehydes was positive correlated with methyl glyoxal and negatively correlated with iron and glucose concentrations. 

PLS-DA was performed against three classes established based on phenylacetaldehyde formation, and results confirm that methylglyoxal is a substrate for phenylalanine Strecker degradation and the presence of glucose can reduce the formation of the aldehyde after long periods of storage.

DOI:

Publication date: June 14, 2022

Issue: WAC 2022

Type: Article

Authors

António César da Silva Ferreira, Ana Rita, Monforte

Presenting author

António César da Silva Ferreira – Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina; IWBT – DVO University of Stellenbosch

Universidade Católica Portuguesa, CBQF – Centro de Biotecnologia e Química Fina

Contact the author

Keywords

white wine, oxidation, ageing, target, methylglyoxal, Strecker

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Ability of lactic acid bacterial laccases to degrade biogenic amines and OTA in wine

Two of the most harmful microbial metabolites for human health that can be present in wines and either fermented or raw foods are biogenic amines (BA) and ochratoxine A (OTA). Winemakers are aware of the need to avoid their presence in wine by using different strategies, one of them is the use of enzymes. Some recombinant laccases have been characterized and revealed as potential tools to degrade these toxic compounds in wine[1], specifically biogenic amines[2].

Zonazione del comprensorio soave sulla base delle caratteristiche climatiche, pedologiche e viticole

[English version below]

A tre anni dal suo inizio, nel 1997 si è conclusa la prima fase della ricerca “Caratterizzazione della produzione DOC Soave”. Lo studio ha basato il suo percorso sperimentale su alcuni punti fondamentali tra i quali:
• Recupero di tutte le informazioni storico-colturali sul vino Soave e sul suo territorio di produzione.

Assessment of alternative sweetening methods for dealcoholized wine

In recent years, there has been an increase in demand for non-alcoholic wine with an ethanol content of less than 0.5% v/v. The dealcoholization process can take place by various methods, such as vacuum distillation or membrane technologies like osmotic distillation. Compared to distillation, membrane systems often require multiple passes or a combination of multiple separation methods. Complete or almost complete removal of ethanol significantly changes the sensory characteristics of wine.

Agrivoltaic: chances preparing Riesling towards a better climate resilience

Agrivoltaics (AV), the innovative dual-use of land for agriculture and photovoltaic energy production on the same land, offers a promising solution to the challenges of expanding renewable energy without compromising valuable agricultural land.

Diversificazione e valorizzazione di produzioni tipiche sul territorio: I cesanesi

The zone in which the Cesanese vines are cultivated has a secular tradition of red wine­making. This zone is placed between the Simbruini mountains slopes and the surrounding hills and has pedologicai variability but a very homogeneous microclimate.