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- Title
EFFECT OF THE BRAZILIAN THERMAL MODIFICATION PROCESS ON THE CHEMICAL COMPOSITION OF Eucalyptus grandis JUVENILE WOOD - PART 1: CELL WALL POLYMERS AND EXTRACTIVES CONTENTS.
- Authors
Batista, Djeison Cesar; Muñiz, Graciela Ines Bolzón de; da Silva Oliveira, José Tarcísio; Paes, Juarez Benigno; Nisgoski, Silvana
- Abstract
This article reports the first study of the influence of the Brazilian process of thermal modification called VAP HolzSysteme® on the chemical composition of Eucalyptus wood. Flatsawn boards of Eucalyptus grandis juvenile wood were tested for four treatment levels: untreated and thermally modified at final cycle temperatures of 140, 160 and 180 °C. Chemical analyses were carried out according to the standards of the Technical Association of the Pulp and Paper Industry and encompassed total extractives, insoluble lignin, holocellulose (cellulose + hemicelluloses) and solvent soluble extractives in water (cold and hot) and ethanol:toluene (1:2 v.v.) mixture. The chemical composition of thermally modified Eucalyptus grandis juvenile wood was significantly changed by the VAP HolzSysteme® process compared to untreated wood. Only the wood thermally modified at final cycle temperature of 180 °C was significantly different for all the chemical analyses performed compared to untreated wood.
- Subjects
BIOCHEMISTRY; EUCALYPTUS grandis; POLYMERS; ETHANOL; JUVENILE wood
- Publication
Maderas: Ciencia y Tecnología, 2016, Vol 18, Issue 2, p273
- ISSN
0717-3644
- Publication type
Article
- DOI
10.4067/S0718-221X2016005000025