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Title: Química e colorimetria da madeira de Eucalyptus grandis W. Mill ex Maiden termorretificada
Other Titles: Chemical and color changes in heat treated Eucalyptus grandis W. Mill ex Maiden wood
Keywords: Extrativo
Tratamento térmico
Heat treatment
Issue Date: Aug-2014
Publisher: Sociedade de Investigações Florestais (SIF)
Citation: ZANUNCIO, A. J. V. et al. Química e colorimetria da madeira de Eucalyptus grandis W. Mill ex Maiden termorretificada. Revista Árvore, Viçosa, v. 38, n. 4, p. 765-770, jul./ago. 2014. DOI: 10.1590/S0100-67622014000400020.
Abstract: The heat treatment aims to improve the features to add value to the wood through the application of heat. The objective of this work was to evaluate the chemical and colorimetric changes in Eucalyptus grandis wood heat treated at 170, 200 and 230 °C for three, five and seven hours. The content of extractives, lignin, holocellulose, elemental composition and colorimetric parameters were determined. The extractives content increased in treatments at 170 °C and decreased from 200 °C, while total lignin increased and holocellulose decreased from 200 °C. The carbon content increased and oxygen content decreased at 230 °C for five and seven hours. The heat treatment reduced lightness, a* coordinate (red coordinate) and b* coordinate (yellow coordinate) of eucalyptus wood in all treatments.
Appears in Collections:DCF - Artigos publicados em periódicos

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