Chemical composition, antitermite, antifungal properties, and wood protection systems from Canarium schweinfurthii (Aiele) resin from Gabon

Bedounguindzi Walter Fiacre, Candelier Kévin, Edou Engonga Prosper, Dumarçay Stéphane, Thévenon Marie-France, Gérardin Philippe. 2025. Chemical composition, antitermite, antifungal properties, and wood protection systems from Canarium schweinfurthii (Aiele) resin from Gabon. Journal of Wood Science, 71:18, 18 p.

Résumé : This work evaluates the antifungal and antitermite properties, as well as the contribution of three resin fractions, i.e., raw resin (RR), essential oil (EO) and purified resin (PR) of Canarium schweinfurthii (Aiele) from Gabon, to the durability of wood material. To this end, chemical analysis using gas chromatography coupled with mass spectrometry (GC/MS) of the three fractions was first carried out, followed by a study of their antifungal and antitermite activities, and finally a study of their effects on the protection of wooden blocks subjected to degrading agents (termites and fungi). The results of the chemical analyses show that EO is made up of monoterpenes and monoterpenoids, while RR and PR consist of a mixture of monoterpenes, monoterpenoids and triterpenes. Biological tests of these fractions against Rhodonia placenta (RP), Coniophora puteana (CP), Trametes versicolor (TV) and Pycnoporus sanguineus (PS) demonstrated moderate antifungal activity but strong antitermite activity. These fractions improve the durability of impregnated wood blocks against fungi, and provide remarkable resistance to termites. However, their leachability properties are clearly demonstrated.

Mots-clés Agrovoc : composition chimique, propriété antifongique, huile essentielle, Pinus sylvestris, préservation du bois, propriété physicochimique, fongicide, Canarium, bois, oléorésine, monoterpénoïde, Isoptera, propriété technologique, Pycnoporus

Mots-clés géographiques Agrovoc : Gabon

Mots-clés libres : Aiele, Brown rot, Canarium Schweinfurthii, Essential oil, Oleoresin, Termite, White rot, Wood treatment

Agences de financement hors UE : Agence Nationale de la Recherche

Projets sur financement : (FRA) Recherches avancées sur l'arbre et les écosytèmes forestiers

Auteurs et affiliations

• Bedounguindzi Walter Fiacre, Université de Lorraine (FRA) - auteur correspondant
• Candelier Kévin, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0002-9328-8511
• Edou Engonga Prosper, Ecole Normale Supérieure de Libreville (GAB)
• Dumarçay Stéphane, Université de Lorraine (FRA)
• Thévenon Marie-France, CIRAD-PERSYST-UPR BioWooEB (FRA) ORCID: 0000-0003-2985-2728
• Gérardin Philippe, Université de Lorraine (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/612867/)

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