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IVES 9 IVES Conference Series 9 WINE WITHOUT ADDED SO₂: OXYGEN IMPACT AND EVOLUTION ON THE POLYPHENOLIC COMPOSITION DURING RED WINE AGING

WINE WITHOUT ADDED SO₂: OXYGEN IMPACT AND EVOLUTION ON THE POLYPHENOLIC COMPOSITION DURING RED WINE AGING

Abstract

SO₂ play a major role in the stability and wine during storage. Nowadays, the reduction of chemical input during red winemaking and especially the removing SO₂ is a growing expectation from the consumers. Winemaking without SO₂ is a big challenge for the winemakers since the lack of SO₂ affects directly the wine chemical evolution such as the phenolic compounds as well as its microbiological stability.

During the red wine aging, phenolic compounds such as anthocyanin, responsible of the red wine colour, and tannins, responsible of the wine mouthfeel organoleptic properties, evolved quickly from the winemaking process to aging [1]. A lot of new interaction and molecules occurred lead by oxygen [2] or the lack of SO₂ which induce wine properties changes [3]. Nowadays, the phenolic composition of the wine without added SO₂ have not been reported. The aims of this study is to characterise the impact of oxygen on the phenolic composition of the wine without added sulphites during ageing. The evolution of the polyphenolic matrix have been monitored in function of the oxygen consumption. For the experiment, the identical wine without sulphite have been divided in different 30 L stainless steel tank. An increase amount of oxygen have been introduce from 0 mg/L to 36 mg/L of oxygen. Oxygen consumption have been followed. After consumption, wine samples have been collected for chemical and sensory analyses, and the same amount of oxygen have been introduce again. In total, three different cycle have been followed and sampled. Different phenolic analysis have been performed. Anthocyanin’s evolution have been followed from the monomeric anthocyanin to the polymerized pigments. Condensed tannins evolution have also be carry out as well as the crown procyanidins. A correlation between the oxygen amount and anthocyanin’s evolution have been determined as well as the tannin’s evolution. The research of specific phenolic markers from the wine without sulphite is on progress.

 

1. Drinkine, J., Lopes, P., Kennedy, J. A., Teissedre, P.-L., & Saucier, C. (2007). Ethylidene-bridged flavan-3-ols in red wine and correlation with wine age. Journal of Agricultural and Food Chemistry, 55(15), 6292–6299. https://doi.org/10.1021/jf070038w
2. Zeng, L., Teissèdre, P.-L., & Jourdes, M. (2016). Structures of polymeric pigments in red wine and their derived quantification markers revealed by high-resolution quadrupole time-of-flight mass spectrometry: Identification of polymeric pig-ments and their quantification markers. Rapid Communications in Mass Spectrometry, 30(1), 81–88. https://doi.org/10.1002/rcm.7416
3. Picariello, L., Gambuti, A., Petracca, F., Rinaldi, A., & Moio, L. (2018). Enological tannins affect acetaldehyde evolution, colour stability and tannin reactivity during forced oxidation of red wine. International Journal of Food Science & Technology, 53(1), 228–236. https://doi.org/10.1111/ijfs.13577

DOI:

Publication date: February 9, 2024

Issue: OENO Macrowine 2023

Type: Poster

Authors

Jouin A. ¹, Ghidossi R. ¹, Teissedre P-L. ¹, Jourdes M. ¹

1. University of Bordeaux, Bordeaux INP, Bordeaux Sciences Agro, INRAE, UMR 1366, OENO, ISVV F-33140 Villenave d’Ornon, France

Contact the author*

Keywords

Oxygen, Evolution, Phenolic compounds, Wine without added sulphite

Tags

IVES Conference Series | oeno macrowine 2023 | oeno-macrowine

Citation

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