STUDY OF THE EVOLUTION AND THE EXTRACTABILITY OF PHENOLS COMPOUNDS IN MODEL SOLUTION DURING MATURATION- RELATIONSHIP WITH MECHANICAL PROPERTIES OF GRAPES
type: Dataset
description: Wine professionals are interested in the quality of the grape, in particular of its phenolic composition and their potential of extraction. In this context, the main objective here is to evaluate the contribution of the mechanical properties of grapes to the extractability of the phenolic compounds. The first step was to follow the evolution of major phenolic of Cabernet Franc grapes, belonging to different vineyards as well as their extractability during the maturation over two vintages. A second approach related to the study of the evolution of the mechanical properties of the grapes during maturation by TPA and puncture tests on whole berry and by destructive compression on seeds was proposed. However the experimental and statistical approach followed in this study proved limited and did not allow to lead to a comprehensive view although having been able to highlight during the maturation of the correlations when the analyses were carried out on grapes coming from the same vineyard or the same vintage. Indeed various correlations were generated but none could be widespread. The nature of the bonds being able to exist seems dependent on the vintage and hardly being able to be extrapolated from one vineyard to another. Our results show that the evolution and the extractability of the phenolic compounds as well as the mechanical properties of the grape are above all related on the vintage and to a lesser level to the vineyard.
issued: 2026-05-13T03:11:05.733360
language: fr
modified: 2026-05-13T03:11:05.733366
contact point: Organization
  fn: CCSD
keyword: composes-phenoliques
keyword: extractability
keyword: extractibilite
keyword: grape
keyword: infoeu-reposemanticsdoctoralthesis
keyword: maturation
keyword: mechanical-properties
keyword: mesures-mecaniques
keyword: phenolic-compounds
keyword: raisin
keyword: ripening
keyword: sdvsalife-sciences-q-bioagricultural-sciences
keyword: theses
landing page: https://theses.hal.science/tel-00799029

STUDY OF THE EVOLUTION AND THE EXTRACTABILITY OF PHENOLS COMPOUNDS IN MODEL SOLUTION DURING MATURATION- RELATIONSHIP WITH MECHANICAL PROPERTIES OF GRAPES
type: Distribution
format: HTML
issued: 2026-05-13T03:11:05.795799
modified: 2026-05-13T03:11:05.700936
access URL: https://theses.hal.science/tel-00799029

test_moissonnage_selune
type: Agent