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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Changes in the Chemical Composition and Decay Resistance of Thermally-Modified Hevea brasiliensis Wood

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Author(s):
Durgante Severo, Elias Taylor [1, 2, 3] ; Calonego, Fred Willians [1] ; Sansigolo, Claudio Angeli [1] ; Bond, Brian [2, 4]
Total Authors: 4
Affiliation:
[1] Sao Paulo State Univ, UNESP, Fac Agr Sci, Dept Forest Sci, Sao Paulo - Brazil
[2] Virginia Tech, Brooks Forest Prod Ctr, Dept Sustainable Biomat, Blacksburg, VA - USA
[3] Fazenda Expt Lageado, Fac Agr Sci, Dept Forest Sci, POB 237, BR-18603970 Botucatu, SP - Brazil
[4] Virginia Polytech Inst & State Univ, Brooks Forest Prod Ctr, 1650 Ramble Rd, Blacksburg, VA 24061 - USA
Total Affiliations: 4
Document type: Journal article
Source: PLoS One; v. 11, n. 3 MAR 17 2016.
Web of Science Citations: 11
Abstract

In this study the effect of thermal treatment on the equilibrium moisture content, chemical composition and biological resistance to decay fungi of juvenile and mature Hevea brasiliensis wood (rubber wood) was evaluated. Samples were taken from a 53-year-old rubber wood plantation located in Tabapua, Sao Paulo, Brazil. The samples were thermally-modified at 180 degrees C, 200 degrees C and 220 degrees C. Results indicate that the thermal modification caused: (1) a significant increase in the extractive content and proportional increase in the lignin content at 220 degrees C; (2) a significant decrease in the equilibrium moisture content, holocelluloses, arabinose, galactose and xylose content, but no change in glucose content; and (3) a significant increase in wood decay resistance against both Pycnoporus sanguineus (L.) Murrill and Gloeophyllum trabeum (Pers.) Murrill decay fungi. The greatest decay resistance was achieved from treatment at 220 degrees C which resulted in a change in wood decay resistance class from moderately resistant to resistant. Finally, this study also demonstrated that the influence of thermal treatment in mature wood was lower than in juvenile wood. (AU)

FAPESP's process: 13/15372-0 - Development of a thermally-modified program to Hevea brasiliensis chemical characterization and a study of biological degradation of wood
Grantee:Elias Taylor Durgante Severo
Support Opportunities: Scholarships abroad - Research