title: Highly Repeatable Dissolution Dynamic Nuclear Polarization for Heteronuclear NMR Metabolomics.
abstract: At natural (13)C abundance, metabolomics based on heteronuclear NMR is limited by sensitivity. We have recently demonstrated how hyperpolarization by dissolution dynamic nuclear polarization (D-DNP) assisted by cross-polarization (CP) provides a reliable way of enhancing the sensitivity of heteronuclear NMR in dilute mixtures of metabolites. In this Technical Note, we evaluate the precision of this experimental approach, a critical point for applications to metabolomics. The higher the repeatability, the greater the likelihood that one can detect small biologically relevant differences between samples. The average repeatability of our state-of-the-art D-DNP NMR equipment for samples of metabolomic relevance (20 mg dry weight tomato extracts) is 3.6% for signals above the limit of quantification (LOQ) and 6.4% when all the signals above the limit of detection (LOD) are taken into account. This first report on the repeatability of D-DNP highlights the compatibility of the technique with the requirements of metabolomics and confirms its potential as an analytical tool for such applications.
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.
authors.forename: Aurélien
authors.initials: A
authors.lastname: Bornet
authors.affiliation: Plateforme Métabolome Bordeaux-MetaboHUB, Centre de Génomique Fonctionnelle Bordeaux, IBVM, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.|Université de Bordeaux , UMR 1332 Biologie du Fruit et Pathologie, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.
authors.forename: Mickaël
authors.initials: M
authors.lastname: Maucourt
authors.affiliation: Plateforme Métabolome Bordeaux-MetaboHUB, Centre de Génomique Fonctionnelle Bordeaux, IBVM, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.|INRA, UMR 1332 Biologie du Fruit et Pathologie, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.
authors.forename: Catherine
authors.initials: C
authors.lastname: Deborde
authors.affiliation: Plateforme Métabolome Bordeaux-MetaboHUB, Centre de Génomique Fonctionnelle Bordeaux, IBVM, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.|INRA, UMR 1332 Biologie du Fruit et Pathologie, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.
authors.forename: Daniel
authors.initials: D
authors.lastname: Jacob
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.
authors.forename: Jonas
authors.initials: J
authors.lastname: Milani
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.
authors.forename: Basile
authors.initials: B
authors.lastname: Vuichoud
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.
authors.forename: Xiao
authors.initials: X
authors.lastname: Ji
authors.affiliation: Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Univ. Paris-Sud, Université Paris-Saclay , 91190 Gif-sur-Yvette, France.
authors.forename: Jean-Nicolas
authors.initials: JN
authors.lastname: Dumez
authors.affiliation: Plateforme Métabolome Bordeaux-MetaboHUB, Centre de Génomique Fonctionnelle Bordeaux, IBVM, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.|INRA, UMR 1332 Biologie du Fruit et Pathologie, Centre INRA Bordeaux, 33140 Villenave d'Ornon, France.
authors.forename: Annick
authors.initials: A
authors.lastname: Moing
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.|Département de Chimie, Ecole Normale Supérieure (ENS)-Paris Sciences Lettres (PSL) Research University , 75005 Paris, France.|Laboratoire de Biomolécules (LBM), Université Pierre et Marie Curie (UPMC) - Paris 06, Sorbonne Universités , 75005 Paris, France.|Laboratoire de Biomolécules (LBM), Unité Mixte de Recherche (UMR) 7203 Centre National de la Recherche Scientifique (CNRS), 75005 Paris, France.
authors.forename: Geoffrey
authors.initials: G
authors.lastname: Bodenhausen
authors.affiliation: Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne, Switzerland.
authors.forename: Sami
authors.initials: S
authors.lastname: Jannin
authors.affiliation: Université de Nantes , CNRS, CEISAM UMR 6230, 44322 Nantes Cedex 03, France.|Institut Universitaire de France , 75005 Paris, France.
authors.forename: Patrick
authors.initials: P
authors.lastname: Giraudeau
mesh_terms: D002247:Carbon Isotopes / Q000737:chemistry; D005638:Fruit / Q000378:metabolism; D057230:Limit of Detection; D018551:Solanum lycopersicum / Q000254:growth & development / Q000378:metabolism; D055432:Metabolomics / Q000379:methods*; D019906:Nuclear Magnetic Resonance, Biomolecular; D015203:Reproducibility of Results; D059629:Signal-To-Noise Ratio
chemical_list: D002247:Carbon Isotopes; C000615229:Carbon-13