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Chemical composition of heartwood and sapwood of Tectona grandis characterized by CG/MS‑PY
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Orientador(es)
Resumo(s)
Teak wood has chemical compounds that can be used for pharmaceutical and textile industries,
in addition, this compounds are related to resistance to biodeterioration, color and modification
processes. Heartwood and sapwood of T. grandis (teak), 15 years-old, were characterized by
Py-CG/MS analysis and syringyl (S)/guaiacyl (G) ratio was evaluated. Heartwood and sapwood
were pyrolyzed at 550 °C and 62 and 51 compounds were identified from them, respectively. The
acetic acid (10%) and levoglucosan (26.65%) were the most abundant compound in the sapwood
and heartwood, respectively. The high acetic acid content enhances the use of teak wood to
production of artificial essences for perfumery, paints, dyes. While levoglucosan can be used in the
manufacture of epoxy resins, antiparasitic and insecticides. The organic compounds identified include
2-methylanthraquinone as one of the main component responsible for the resistance of the teak wood
to biological factors (fungi and termites). The syringyl (S)/guaiacyl (G) ratio of heartwood and sapwood
was 0.51 and 0.50, respectively
Descrição
Palavras-chave
Tectona grandis heartwood sapwood chemical composition
Contexto Educativo
Citação
Scientific Reports, (2022) 12:18441
Editora
Nature