Technological properties of wood of four species in the Amazonia
The work aimed to evaluate the technological properties of the wood from four species of Amazonia. Samples of timborana (Piptadenia suaveolens), pequiá (Caryocar villosum), sucupira (Bowdichia nitida) and maçaranduba (Manilkara huberi) were made. The wood was evaluated for their chemical constitutio...
| Autores principales: | , , , , |
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| Formato: | Online |
| Lenguaje: | spa |
| Publicado: |
Instituto de Ecología, A.C.
2021
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| Acceso en línea: | https://myb.ojs.inecol.mx/index.php/myb/article/view/2209 |
| _version_ | 1799769417685401600 |
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| author | Medeiros, Dayane Targino de Melo, Rafael Rodolfo de Cademartori, Pedro Henrique Gonzalez de Batista, Felipe Gomes Mascarenhas, Adriano Reis Prazeres |
| author_facet | Medeiros, Dayane Targino de Melo, Rafael Rodolfo de Cademartori, Pedro Henrique Gonzalez de Batista, Felipe Gomes Mascarenhas, Adriano Reis Prazeres |
| author_sort | Medeiros, Dayane Targino de |
| collection | MYB |
| description | The work aimed to evaluate the technological properties of the wood from four species of Amazonia. Samples of timborana (Piptadenia suaveolens), pequiá (Caryocar villosum), sucupira (Bowdichia nitida) and maçaranduba (Manilkara huberi) were made. The wood was evaluated for their chemical constitution, physical properties (density, porosity, shrinkage and moisture content) and surface properties (color, NIR spectroscopy and wettability). The highest percentage of holocellulose, extracts and ashes were obtained in the pequiá wood. It was observed that the maçaranduba and sucupira were the densest. In timborana wood the greatest dimensional stability was registered. In the surface properties, the woods presented the colors: pinkish-gray (timborana), yellowish olive (pequiá), olive (sucupira) and dark brown (maçaranduba). The NIR spectra of the four species were similar, with little variation in the radial to the transversal plane. Regarding wettability, there was a reduction in the water contact angle from 5s to 10s, in both wood and planes. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2209 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2021 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-22092022-11-29T22:24:20Z Technological properties of wood of four species in the Amazonia Characterization of Amazon woods Caracterização da madeira de espécies da Amazônia Medeiros, Dayane Targino de Melo, Rafael Rodolfo de Cademartori, Pedro Henrique Gonzalez de Batista, Felipe Gomes Mascarenhas, Adriano Reis Prazeres colorimetry wood physics tropical wood wettability colorimetria física da madeira madeira tropical molhabilidade The work aimed to evaluate the technological properties of the wood from four species of Amazonia. Samples of timborana (Piptadenia suaveolens), pequiá (Caryocar villosum), sucupira (Bowdichia nitida) and maçaranduba (Manilkara huberi) were made. The wood was evaluated for their chemical constitution, physical properties (density, porosity, shrinkage and moisture content) and surface properties (color, NIR spectroscopy and wettability). The highest percentage of holocellulose, extracts and ashes were obtained in the pequiá wood. It was observed that the maçaranduba and sucupira were the densest. In timborana wood the greatest dimensional stability was registered. In the surface properties, the woods presented the colors: pinkish-gray (timborana), yellowish olive (pequiá), olive (sucupira) and dark brown (maçaranduba). The NIR spectra of the four species were similar, with little variation in the radial to the transversal plane. Regarding wettability, there was a reduction in the water contact angle from 5s to 10s, in both wood and planes. The high demand for quality wood by the forestry and timber sector, the knowledge of the properties of new forest species becomes essential to have a stocked and diversified trade, thus reducing the exploitation of a small group of species due to the unfamiliarity of the other species. Thus, the objective of this work was to analyze the physical, chemical, and surface properties of the wood of four species of the Amazon. Samples of timborana (Piptadenia suaveolens), pequiá (Caryocar villosum), sucupira (Bowdichia nitida) and maçaranduba (Manilkara huberi) were obtained. The wood was evaluated for their chemical constitution, physical properties (density, porosity, shrinkage, and moisture content) and surface properties (color and wettability). The highest percentage of holocellulose (73,42%), extracts (5,10%) and ashes (1,06%) were obtained in the pequiá wood. It was observed that the maçaranduba and sucupira were the densest, with apparent density values of 0,96 and 0,98 g/cm³, respectively. In timborana wood the greatest dimensional stability was registered, obtaining values of 2,03 (βr), 4,45 (βt) and 7,23 (βv). In the surface properties, according to the values of the colorimetric parameters, the woods were classified as pinkish gray (timborana), yellowish olive (pequiá), olive (sucupira) and dark brown (maçaranduba). Regarding wettability, there was a reduction in the water contact angle from 5 s to 10 s, in both wood and planes. And it was found that the timborana woods differed statistically when the contact angle in relation to the face of the wood and the time was analyzed. Thus, the tropical woods evaluated presented relevant properties for various applications in the timber trade. Diante da elevada demanda por madeira de qualidade pelo setor florestal e madeireiro, o conhecimento das propriedades de novas espécies florestais torna-se imprescindível para que se tenha um comércio abastecido e diversificado, reduzindo assim, a exploração de um pequeno grupo de espécies em função do desconhecimento das demais. Desta forma, o objetivo deste trabalho foi analisar as propriedades físicas, químicas e de superfície da madeira de quatro espécies da Amazônia. Foram utilizadas amostras de madeira de timborana (Piptadenia suaveolens), pequiá (Caryocar villosum), sucupira amarela (Bowdichia nitida) e maçaranduba (Manilkara huberi). As madeiras foram avaliadas quanto a sua composição química, propriedades físicas (densidade, porosidade, contrações e umidade) e propriedades de superfície (colorimetria e molhabilidade). Na madeira de pequiá obteve-se os maiores percentuais de holocelulose (73,42%), extrativos (5,10%) e cinzas (1,06%). Observou-se que as madeiras de maçaranduba e sucupira amarela foram as mais densas, com valores de densidade aparente de 0,96 e 0,98 g/cm³, respectivamente. Na madeira de timborana registrou-se a maior estabilidade dimensional, obtendo valores de 2,03 (βr), 4,45 (βt) e 7,23 (βv). Já nas propriedades de superfície, conforme os valores dos parâmetros colorimétricos, as madeiras classificaram-se como rosa-acinzentado (timborana), oliva-amarelado (pequiá), oliva (sucupira amarela) e marrom-escuro (maçaranduba). Com relação a molhabilidade, verificou-se redução do ângulo de contato da água de 5 s para 10 s, em ambas as madeiras e planos. E constatou-se que as madeiras timborana diferiram estatisticamente quando se analisou o ângulo de contato em relação à face da madeira e o tempo. Assim, as madeiras tropicais avaliadas apresentaram propriedades relevantes para aplicações diversas no comércio madeireiro. Instituto de Ecología, A.C. 2021-12-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares text/xml application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/2209 10.21829/myb.2021.2722209 Madera y Bosques; Vol. 27 No. 2 (2021): Summer 2021; e2722209 Madera y Bosques; Vol. 27 Núm. 2 (2021): Verano 2021; e2722209 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/2209/2345 https://myb.ojs.inecol.mx/index.php/myb/article/view/2209/2290 10.21829/myb.2020.261615 10.21829/myb.2019.252481 http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Medeiros, Dayane Targino de Melo, Rafael Rodolfo de Cademartori, Pedro Henrique Gonzalez de Batista, Felipe Gomes Mascarenhas, Adriano Reis Prazeres Technological properties of wood of four species in the Amazonia |
| title | Technological properties of wood of four species in the Amazonia |
| title_full | Technological properties of wood of four species in the Amazonia |
| title_fullStr | Technological properties of wood of four species in the Amazonia |
| title_full_unstemmed | Technological properties of wood of four species in the Amazonia |
| title_short | Technological properties of wood of four species in the Amazonia |
| title_sort | technological properties of wood of four species in the amazonia |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/2209 |
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