DEBORDE, Catherine; PAGÈS, Guilhem; BONNY, Jean-Marie; LEMAIRE-CHAMLEY, Martine; MOING, Annick

doi:10.1016/j.foodchem.2025.145630

Metadatos

Licencia de uso del documento

http://creativecommons.org/licenses/by-nc/

DEBORDE, Catherine
Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA]
BIBS - Plateforme Bioressources : Imagerie, Biochimie & Structure
INRAE, PROBE Research Infrastructure
Biologie du fruit et pathologie [BFP]
MetaboHUB-Bordeaux

PAGÈS, Guilhem
Qualité des Produits Animaux [QuaPA]
INRAE, PROBE Research Infrastructure
MetaboHUB-Bordeaux

BONNY, Jean-Marie
Qualité des Produits Animaux [QuaPA]
INRAE, PROBE Research Infrastructure

Idioma

Article de revue

Este ítem está publicado en

Food Chemistry. 2025-07, vol. 493, n° 1, p. 145630

Elsevier

Resumen en inglés

Chemical Exchange Saturation Transfer Magnetic Resonance Imaging (CEST-MRI) is an established tool in animal or human MRI to indirectly visualize metabolites in vivo. We used CEST-MRI to map the major metabolites in tomato fruit at tissue level throughout ripening. Phantom experiments showed a CEST effect in the 1 and 3 ppm chemical shifts for major soluble sugars and free amino acids, respectively, and a tendency for the CEST signal to decrease from pH 4.7 to 3.7. Fruit images for hydroxyl or amine moieties were well-contrasted for all ripening stages, showing gradients within and between tissues. Mean hydroxyl-CEST signals correlated with the ex vivo concentrations of soluble sugars of dissected tissues, although this was not the case for amino acids. This approach holds much promise for monitoring composition changes in vivo within a plant organ tissue.< Leer menos

Palabras clave en inglés

NMR

MRI

Fruit development and ripening

Tomato

DOI

http://dx.doi.org/10.1016/j.foodchem.2025.145630

Proyecto ANR

Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation - ANR-11-INBS-0010

Orígen

Importado de Hal

Centros de investigación

Biologie du Fruit & Pathologie (BFP) - UMR 1332