The effect of carbonization on the wood anatomy of Sclerolobium paniculatum Vogel

Abstract

Considering the extraordinary diversity of the Brazilian Cerrado and the difficulties related to the inspection of environmental crimes, knowing the wood and charcoal anatomy of widely exploited species is important. Thus, this study aimed to verify the anatomical characteristics of the wood and charcoal of Sclerolobium paniculatum. Therefore, anatomical characterizations of the wood and the charcoal produced were performed in order to compare the characteristics of both materials and observe any possible changes in the anatomical properties after carbonization. The results exposed that the qualitative anatomical characteristics of S. paniculatum wood can be maintained after the carbonization process. However, quantitatively, the carbonization increased the vessel frequency value and height and width of rays, despite reducing the frequency of rays. The diameter of the vessels was not altered by carbonization. This characterization of the species can then serve as a database for future identification of charcoal produced with this wood. In addition, it can encourage increasing the quality of inspection and consequently reducing the illegal exploitation of the species in natural environments.

Thermogravimetric investigation of anisotropy of dimensional shrinkage of softwood and hardwood during carbonization

“…Wood shrinks when it is carbonized, even though its anatomical structure is retained (Baraúna et al 2021;Byrne and Nagle 1997a;Ehrburger et al 1982;Vafaeenezhad et al 2013). The shrinkage is highly anisotropic and its magnitude follows the order: tangential (T) > radial (R) > longitudinal (L) directions (Byrne and Nagle 1997b;Ehrburger et al 1982;McGinnes et al 1971;Moore et al 1974;Paris et al 2005;Pulido Novicio et al 2001;Slocum et al 1978).…”

Fiber quality and wood basic density of species of the Savannah for productive purposes

“…Thus, the determination of these indices, such as fiber wall fraction, enables the prediction of the cellulose pulp behavior for papermaking (Baldin et al, 2017). Charcoal is also related to the fiber cell wall, maintaining its mainly morphological characteristics (Baraúna et al, 2021). The anatomical parameters directly reflect the wood basic density, and fibers with thick cell walls have a greater volume of biomass (Santos et al, 2011).…”

Painel aglomerado de >i<Tachigali vulgaris>/i< oriundo de plantio de floresta homogênea da região amazônica

“…Por exemplo, comparando a microscopia da madeira e carvão de T. vulgaris evidenciou-se que a carbonização degrada inicialmente o parênquima radial aumentando a porosidade do carvão (BARAÚNA et al, 2021).…”