Investigations on the durability of several Congo basin wood species

Abstract : The sawdust of ten wood species was studied to assess their natural resistance to decay. The extractives and lignin contents were primarily determined (between 2.7-16.0% and 26.8-35.9% respectively) to give an overview of the chemical distribution. Then, a phytochemical screening (colorimetric methods) characterized the different chemical functional groups in all extracts studied. Antioxidant activity indicated values comprised between 18 and 175 µmol AAE/µg of extract correlated to total phenolic content which were comprised between 51 and 935 mg eq. of gallic acid/g of extract. The resistance to decay of extracted and unextracted sawdust against the two white-rot fungi was evaluated and showed that extractives amounts and compositions partially influenced wood durability.
Type de document :
Communication dans un congrès
International Research Group on Wood Preservation, May 2015, Vina del Mar, Chile
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https://hal.univ-lorraine.fr/hal-01579833
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Soumis le : jeudi 31 août 2017 - 16:45:38
Dernière modification le : jeudi 2 août 2018 - 16:54:21

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  • HAL Id : hal-01579833, version 1

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Steeve Mounguengui, Jean-Bosco Saha Tchinda, Maurice Kor Ndikontar, Stéphane Dumarcay, Christiane Attéké, et al.. Investigations on the durability of several Congo basin wood species. International Research Group on Wood Preservation, May 2015, Vina del Mar, Chile. 〈hal-01579833〉

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