Vis spectroscopy and CIELAB parameters of six wood species of the Fabaceae family marketed in the Brazilian Amazon

Abstract

The aim of this study was to evaluate the potential of colorimetry to characterize six species of the Fabaceae family. Wood samples were collected in extractivist communities in the Green Forever Extractivist Reserve in Pará state, Brazil. Color data were obtained randomly on the three anatomical sections, along with reflectance spectra in the range of 360 to 740 nm. All analyses were carried out with the R software. In general, reflectance spectra were similar for all species. However, for the PCA results, Pseudopiptadenia suaveolens stood out. The colorimetric parameters L*, b* and C*, in radial sections, are more important on color results of the majority of wood samples. Colorimetry technique showed potential for characterizing some Fabaceae species. Therefore, the technique can serve as a support tool for better identification of this group, contributing to the reduction of ecological and socio-economic damage.

Colorimetría y densitometría en madera de Guazuma crinita

“…La colorimetría cuantitativa ha mostrado potencialidad para evaluar especies amazónicas, pues es una metodología objetiva y eficaz para la medición del color de la madera (Dos Santos et al 2021, Barros et al 2014. Es una técnica no destructiva, que evalúa de forma precisa el color para dar un uso final adecuado y rentable en su comercialización (Moya y Marín 2011).…”