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…

Terroir effects on the response of Tempranillo grapevines to irrigation in four locations of Spain: agronomic performance and water relations

We report the effects of different drip irrigation treatments on the agronomic performance and water relations of Tempranillo grapevines, pruned to a bilateral cordon

Read More

Application of plant growth regulators on Vitis vinifera L var. Mouchtaro affect berry quality characteristics & associated microbial communities

The phenolic profile of the red grapevine varieties berries is a key quality factor and several techniques have been applied to improve it (Perez-Lamela et al., 2007; Singh SK and Sharma, 2010). The last decade the application of resistance elicitors and phytohormones is an innovative viticultural technique (Paladines-Quezada et al., 2021; Alenazi et al., 2019).In the present study, leaves and berries of a Greek red indigenous variety (Mouhtaro) sprayed with two elicitors, benzothiadiazole and chitosan and a plant hormone abscisic acid, during veraison.

Read More

Transition metals and light-dependent reactions: application of a response surface methodology approach

Light-induced reactions can be responsible for detrimental changes of white and rosé wines. This is associated to the photo-degradation of riboflavin (RF) and of methionine (Met) causing the appearance of light-struck taste (LST).

Read More

Impact of acidification by fumaric acid at vatting on Cabernet-Sauvignon wine during winemaking

Acidity of grape berries is lowered due to climate changes (1), resulting in musts and wines with higher pHs. These higher pHs induce microbiological instability

Read More

Microbial metagenomics of vineyard soils and wine terroir

Aims: The aims of this study were to (i) characterize bacterial and fungal communities in selected Australian vineyard soils and (ii) determine if the soil microbiome composition and diversity varied between different zones within a vineyard. 

Read More