terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Crown procyanidin quantification in red wines, rosé wines and Port wines

Crown procyanidin quantification in red wines, rosé wines and Port wines

Abstract

Condensed grape tannins play a major role in the organoleptic properties and quality of red wine. Recently, a new sub-family of macrocyclic condensed tannins has been identified in red wine and named “crown tannins”. Indeed, the first compound of the family identified and characterised by NMR was the crown procyanidin tetramer which is composed of a macrocyclic structure composed of four (-)-epicatechins link together by B-type interflavanoid linkage in the following an alternative sequences of C4-C8 and C4-C6 linkage. The 3D structure of this unusual crown procyanidin family reveals a central cavity in the molecule [1]. Moreover, this crown procyanidin tetramer has a very specific physicochemical characteristics and properties compared with non-cyclic condensed tannins [2]. Apart from the procyanidin tetramer, many other crown tannins have been detected by UPLC-UV-QTof, such as galloylated tetramers and pentamers. Moreover, recent study showed that these molecules are specifically located in grapes skin and their concentration in red wine depends of the grape varieties.

Thus following or previous work regarding the validation of a quantification method by UPLC-UV-QTof, the evolution kinetics of crown procyanidins family (tetramer, galloylated tetramer and pentamer) during wine aging in bottles over multiple vintages has been investigated. This evolution kinetic has been investigated in various wine matrices, such as red wine, rosé wine and port wine, in order to gain a better understanding of their evolution and impact in the various colloidal matrices. Moreover, this evolution kinetics has been compared with non-cyclic condensed tannins.

References:
1) Zeng, L.et al. (2019) Crown Procyanidin Tetramer: A Procyanidin with an Unusual Cyclic Skeleton with a Potent Protective Effect against Amyloid-β-Induced Toxicity. Molecules, 24: 1915, DOI 10.3390/molecules24101915

2) Jouin A et al. (2022) Evolution of the Crown Procyanidins’ Tetramer during Winemaking and Aging of Red Wine. Foods, 11: 3194. DOI10.3390/foods11203194

DOI:

Publication date: October 16, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Ferreira M. 1*., Teissedre PL.1, Jourdes M. 1

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

Contact the author*

Keywords

wines, condensed tannins, crown tannins, UPLC-UV-QTof

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Differences in metabolism among species and hybrids of the genus Saccharomyces during wine fermentation unveiled by multi-omic analysis 

Yeast species S. cerevisiae, S. uvarum, S. kudriavzevii and their hybrids present clear metabolic differences, even when we compared S. cerevisiae wine versus wild strain. These species and hybrids produced significantly higher amounts of glycerol, organic acids, 2,3-butanediol, and 2-phenyl ethanol and a reduction of the ethanol yield, properties very interesting in the sector to deal with climate change effects. To understand the existing differences, we have used several omics techniques to analyze the dynamics of the (intra- and extracellular) metabolomes and/or transcriptomes of representative strains of S. cerevisiae, S. uvarum, S. kudriavzevii, and hybrids.

Read More

Green pruning of shoots to force new sprouting of buds, in fruit set and in pea size: vegetative, productive and maturation effects, in cv. Verdejo

The context of climate crisis leads to the acceleration of technological ripening of grapes, with unsuitable loss of acidity, so various vineyard management alternatives are being considered to delay the grape ripening. The delay of the vegetative cycle towards a period of milder temperatures affects ripening, but vine behavior can vary according to the area, conduction, watering, variety, etc. A work is proposed to know the response to the green pruning of shoots, executed in fruit set and in pea size, in cv. Verdejo.

Read More

REGAVID a decision tool to deficit irrigation in a temperate climate (DO Monterrei – Spain)

In temperate climates, such as in the North of Spain, the use of irrigation in the vineyard has not been required, due to the usual rainfall from June to August. In some large vineyards, irrigation management has been carried out, based on occasional support irrigation, or for the application of nutrients (fertigation). Currently it is necessary to implement decision support models to manage irrigation water in real time and avoid misuse of a scarce resource. Moreover, quality standards must be achieved, as in the previous rainfed viticulture.

Read More

Identification of loci associated with specialised metabolites in Vitis vinifera

Secondary (or specialised) metabolites such as terpenes and phenolic compounds are produced by plants for various roles which include defence against pathogens and herbivores, protection against abiotic stress, and plant signalling. Additionally, these metabolites influence grapevine quality traits such as colour, aroma, taste, and nutritional value. However, the biosynthesis of these metabolites is often complex and controlled by multiple genes which in grapevine are predominantly uncharacterised.

Read More

Uncovering the interplay between Copper and SO2 tolerance in Saccharomyces cerevisiae

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...
Read More