The wood preservative potential of long-lasting Amazonian wood extracts

Rodrigues Alice M.S., Stien Didier, Eparvier Véronique, Espindola Laila S., Beauchêne Jacques, Amusant Nadine, Leménager Nicolas, Baudasse Christine, Raguin Lucien. 2012. The wood preservative potential of long-lasting Amazonian wood extracts. International Biodeterioration and Biodegradation, 75 : 146-149.

https://doi.org/10.1016/j.ibiod.2012.03.014

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Quartile : Q2, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q3, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Résumé : Investigations were carried out on the efficacy of extracts from seven Amazonian woods (Bagassa guianensis, Manilkara huberi, Sextonia rubra, Vouacapoua americana, Andira surinamensis, Handroanthus serratifolius, and Qualea rosea) with varying natural durability to reduce soft-rot degradation in a 6-wk soil-bed test. Six of the wood extracts had shown efficacy against soft-rot fungi. In particular, the preservation efficacies of B. guianensis, H. serratifolius, and S. rubra extracts were highly significant up to retention levels of 23, 25, and 12 kg m?3, respectively. Three extracts (A. surinamensis, H. serratifolius, and Q. rosea) were then tested against Gloeophyllum trabeum (brown rot) and Trametes versicolor (white rot), in an agar-block test. H. serratifolius wood extract was very efficient at protecting P. sylvestris samples at 5.1 kg m?3 against the brown rot. This extract could be used as a basis for new wood protectant formulations.

Mots-clés Agrovoc : extrait d'origine végétale, préservation du bois, forêt tropicale humide, Manilkara, Gloeophyllum trabeum, Bignoniaceae, Trametes, efficacité, bois, Schefflera, Fagus sylvatica, Pinus sylvestris