Abstract

URRELO¹,*, David Fernando; LEAL², Laura  and  BOZO³, Carmen. Chemical content of the wood of tabebuia impetiginosa (mart. ex dc) standley from rural community ocho hermanos, municipality el Carmen Rivero Torrez, department of Santa Cruz. Rev. Bol. Quim [online]. 2016, vol.33, n.3, pp.104-115. ISSN 0250-5460.

Abstract The chemical composition of Tabebuia impetiginosa (Mart. ex DC) Standley, was characterized by applying standard analytical methodologies (TAPPI). The species also known as Tajibo Morado was collected in the rural community "Ocho Hermanos" from the "El Carmen Rivero Torrez" county of the Santa Cruz Department in Bolivia. Three samples of 30 cm long were extracted for each tree affording a total of nine wood slices. The obtained results show an average of 45.22% of cellulose, 32.07% of lignine and 22.69% of hemicellulose, in the etanol-benzene extracts with 2.27%. The evaluation of the moisture contents gave an average of 15.44%; the pH was 5.22. The ashes afforded an average of 1.31% and the minerals were estimated as: phosphor 0.011%, calcium 0.22%, magnesium 0.12%, potasium 0.013%, sodium 0.060%. The nitrogen determination afforded the average valué of 0.47%. Finally, the proteins were in an average of 2.96%. As a conclusión we can infer that the species Tabebuia impetiginosa (Mart. ex DC) Standley has an important potential as a source for the exploitation of wood waste, as well as for the obtaining of: pellets, briquettes, bioethanol, cattle food, carbón, adhesive and other derivatives.

Keywords : Cellulose; Lignin; Hemicellulose; Soluble extracts; Macro minerals; Hydrogen potential.

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