The Potential of Wacapou (Vouacapoua americana) Extracts to Develop New Biobased Protective Solutions for Low-Durability Wood Species  

作　　者：Emma Kieny Kévin Candelier Louis Milhe Yannick Estevez Cyrielle Sophie Romain Lehnebach Jérémie Damay Daniela Florez Emeline Houël Marie-France Thévenon Julie Bossu 

机构地区：[1]CIRAD,Ecologie de Forêts de Guyane(EcoFoG),AgroparisTech,CNRS,INRAE,Universitéde Guyane,Kourou,97379,France [2]CIRAD,UPR BioWooEB,Montpellier,F-34398,France [3]BioWooEB,Universitéde Montpellier,CIRAD,Montpellier,F-34398,France [4]CNRS,Ecologie de Forêts de Guyane(EcoFoG),AgroparisTech,CIRAD,INRAE,Universitéde Guyane,Kourou,Guyane Française,97379,France [5]Sorbonne Université,CNRS,Laboratoire de Biodiversitéet Biotechnologies Microbiennes,LBBM,Observatoire Océanologique,Banyuls-sur-Mer,66650,France

出　　处：《Journal of Renewable Materials》2025年第1期79-100,共22页可再生材料杂志(英文)

基　　金：PROTEXTWOOD (ID 2202-102) funded through LabEx AGRO ANR-10-LABX-0001-01 (under ISiteUniversité de Montpellier framework);the project PANTHER2-Guyane funded through AgenceNationale de la Recherche (ANR-22-CE43-0019);“Investissement d’Avenir” grant managed by Agence Nationale de la Recherche (CEBA, ref. ANR-10-LABX-25-01);supported by the FEDER (European Regional Development Fund)research project “EcovaloBois” (Project number: GY0015430);by the CNRS peps INSIS2018 research project “GuyavaloFibres”.

摘　　要：The valorization of Amazonian wood residues into active chemical compounds could be an eco-friendly,cost-effective and valuable way to develop wood preservative formulations to enhance the decay and termite resistance of low-durable wood species.Wacapou(Vouacapoua americana.,Fabaceae)is a well-known Guianese wood spe-cies commonly used in local wood construction due to its outstanding natural durability,which results from the presence of a large panel of extractives compounds.In addition,its industrial processing generates large amounts of residues.Wacapou residues were extracted by maceration using four different solvents(water/ethanol,ethyl acetate,hexane and dichloromethane/methanol),separately and successively.The yield of each extractive fraction was determined,and their chemical compositions were analyzed by Liquid Chromatography-Mass Spectrometry(LC-MS).Ethyl acetate led to the highest extraction yield,and the active compounds were identified in the obtained extractive fraction.In this sense,the fungicidal and termite-repellent properties of these extractives were then tested using a screening laboratory(with temperate and tropical microorganisms),according to the solution concentration(1%,2.5%,5%,8%and 10%).Finally,Virola michelii Heckel wood samples(low durable species)were impregnated with the 8%concentration solution.The impregnated wood samples were then exposed to a soil bed test.The results highlighted that the nature of the solvent used during wood maceration affects the con-tent of the obtained extractive fractions.Ultra-Performance Liquid Chromatography–High-Resolution Mass Spectrometry(UHPLC-HRMS)analyses showed the influence of extraction parameters on the nature of the extracted molecules.Wacapou extracts(from ethyl acetate maceration)showed good anti-fungal and anti-termite activities.Additionally,the concentration in extractives had an impact on the anti-termite activity level for Reti-culitermesflavipes and Cryptotermes sp.Formulations based on Wacapou extractives showed a good potenti

关 键 词：Anti-fungal and anti-termite activities conferred durability EXTRACTIVES French Guiana IMPREGNATION guianese species wood by-products 

分 类 号：O62[理学—有机化学]