Mapping Dicorynia guianensis Amsh. wood constituents by submicron resolution cluster-TOF-SIMS imaging

Vanbellingen Quentin, Fu Tingting, Bich Claudia, Amusant Nadine, Stien Didier, Della Negra Serge, Touboul David, Brunelle Alain. 2016. Mapping Dicorynia guianensis Amsh. wood constituents by submicron resolution cluster-TOF-SIMS imaging. Journal of Mass Spectrometry, 51 (6) : 412-423.

Quartile : Q2, Sujet : SPECTROSCOPY / Quartile : Q2, Sujet : CHEMISTRY, ANALYTICAL / Quartile : Q3, Sujet : BIOCHEMICAL RESEARCH METHODS

Résumé : The preparation of tropical wood surface sections for time-of-flight secondary ion mass spectrometry imaging is described, and the use of delayed extraction of secondary ions and its interest for the analysis of vegetal surface are shown. The method has been applied to the study by time-of-flight secondary ion mass spectrometry imaging with a resolution of less than one micron of a tropical wood species, Dicorynia guianensis, which is one of the most exploited wood in French Guiana for its durable heartwood. The heartwood of this species exhibits an economical importance, but its production is not controlled in forestry. Results show an increase of tryptamine from the transition zone and a concomitant decrease of inorganic ions and starch fragment ions. These experiments lead to a better understanding of the heartwood formation and the origin of the natural durability of D. guianensis.

Mots-clés Agrovoc : bois, composition chimique, spectrométrie, imagerie multispectrale, durabilité, bois de coeur, technique analytique, tryptamine, cartographie

Mots-clés géographiques Agrovoc : Guyane française, France

Mots-clés complémentaires : Durabilité naturelle, Dicorynia guianensis

Classification Agris : K50 - Technologie des produits forestiers
F60 - Physiologie et biochimie végétale
U30 - Méthodes de recherche
J12 - Manutention, transport, stockage et conservation des produits forestiers

Champ stratégique Cirad : Axe 2 (2014-2018) - Valorisation de la biomasse

Auteurs et affiliations

• Vanbellingen Quentin, CNRS (FRA)
• Fu Tingting, CNRS (FRA)
• Bich Claudia, CNRS (FRA)
• Amusant Nadine, CIRAD-ES-UMR Ecofog (GUF)
• Stien Didier, CNRS (FRA)
• Della Negra Serge, CNRS (FRA)
• Touboul David, CNRS (FRA)
• Brunelle Alain, CNRS (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/581141/)

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