@Article{jrm.2024.056731,
AUTHOR = {Emma Kieny, Kévin Candelier, Louis Milhe, Yannick Estevez, Cyrielle Sophie, Romain Lehnebach, Jérémie Damay, Daniela Florez, Emeline Houël, Marie-France Thévenon, Julie Bossu},
TITLE = {The Potential of Wacapou (<i>Vouacapoua americana</i>) Extracts to Develop New Biobased Protective Solutions for Low-Durability Wood Species},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {13},
YEAR = {2025},
NUMBER = {1},
PAGES = {79--100},
URL = {http://www.techscience.com/jrm/v13n1/59319},
ISSN = {2164-6341},
ABSTRACT = {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 (<i>Vouacapoua americana</i>., Fabaceae) is a well-known Guianese wood species 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, <i>Virola michelii</i> 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 content 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 <i>Reticulitermes flavipes</i> and <i>Cryptotermes</i> sp. Formulations based on Wacapou extractives showed a good potential for valorization in eco-friendly preservatives, aiming to confer better durability to local low-durability wood species.},
DOI = {10.32604/jrm.2024.056731}
}