Chemical characterization of wood and extractives of fast-growing Schizolobium parahyba and Pinus taeda

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Universidade Federal do Parana
  • Universidade Federal de Pelotas
  • University of the Basque Country

Abstract

This study aims to evaluate the chemical composition of wood and extractives of Pinus taeda and Schizolobium parahyba (guapuruvu) as potential feedstock for new applications in the biorefinery industry. For this purpose, their content of α-cellulose, hemicellulose, insoluble lignin, hot water solubility, NaOH1% solubility, inorganic materials (ash), and monomeric sugars by high-performance liquid chromatography was quantified. Attenuated total reflectance infrared spectroscopy and thermogravimetric analysis were also used to complete the physicochemical characterization of the studied woods. The extractives were obtained by soxhlet extraction with ethanol:toluene and dichloromethane and identified with pyrolysis-gas chromatography/mass spectroscopy technique. The results showed that guapuruvu wood has the higher amount of hemicellulose (16%) when compared to pine wood (10%), which resulted in higher solubility in alkali solution. Furthermore, in relation to other biomasses, the two woods presented more percentage of lignin and minor content of hemicelluloses. The P. taeda wood presented the highest percentage of extractives mainly composed of fatty acids and aromatic hydrocarbons, while guapuruvu wood had a higher percentage of phenolic compounds and also fatty acids. Both the materials have low content of extractives with dichloromethane and were mainly composed of lipophilic compounds.

Details

Original languageEnglish
Pages (from-to)209-216
Number of pages8
JournalWood Material Science and Engineering
Volume11
Issue number4
Publication statusPublished - 7 Aug 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • Biomass feedstock, Monomeric sugars, Pyr-GC/MS, Thermal evaluation

ID: 21730712