Potential of Pinus glabra wood for pulp production
For more than a century the species of Pinus have been present in Brazil, especially Pinus taeda, with applications in several sectors. However, for Pinus glabra, object of this study, there is not much information about the technological potential of its wood. Thus, the objective of the study is to...
| Main Authors: | , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Instituto de Ecología, A.C.
2020
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| Online Access: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2632058 |
| _version_ | 1799769396217905152 |
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| author | Vivian, Magnos Alan Modes, Karina Soares Caetano, Ana Paula |
| author_facet | Vivian, Magnos Alan Modes, Karina Soares Caetano, Ana Paula |
| author_sort | Vivian, Magnos Alan |
| collection | MYB |
| description | For more than a century the species of Pinus have been present in Brazil, especially Pinus taeda, with applications in several sectors. However, for Pinus glabra, object of this study, there is not much information about the technological potential of its wood. Thus, the objective of the study is to make inferences about the quality of the P. glabra wood for pulp production, comparing it to P. taeda, the main species used to produce long fiber pulp in Brazil. For that, four trees were cut, from which samples were removed for the physical, chemical, and anatomical characterization of the wood. In relation to the basic density, it was observed the mean and weighted values of 0.421 g/cm-3 and 0.424 g/cm-3, respectively, which classifies it as low density. In anatomical characterization, mean values of length of 3.14 mm, width of 27.18 μm, lumen diameter of 15.39 μm and wall thickness of 5.89 μm of the tracheids were obtained, which resulted in 44.72%, 55.28%, 0.90 and 120.72 for the parameters of wall fraction, flexibility coefficient, Runkel index and felting index, respectively. For the chemical composition, low ash contents (0.25%) and extractives (1.91%) were observed, and intermediate lignin (29.93%) and holocellulose (67.91%) contents were observed. In this way, P. glabra wood presents potential for the pulp production, which must be proven through pulping tests. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2058 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-20582022-11-29T22:31:56Z Potential of Pinus glabra wood for pulp production Potencial da madeira de Pinus glabra para produção de polpa celulósica Vivian, Magnos Alan Modes, Karina Soares Caetano, Ana Paula conífera anatomia da madeira composição química qualidade da madeira. wood anatomy chemical composition conifer wood quality For more than a century the species of Pinus have been present in Brazil, especially Pinus taeda, with applications in several sectors. However, for Pinus glabra, object of this study, there is not much information about the technological potential of its wood. Thus, the objective of the study is to make inferences about the quality of the P. glabra wood for pulp production, comparing it to P. taeda, the main species used to produce long fiber pulp in Brazil. For that, four trees were cut, from which samples were removed for the physical, chemical, and anatomical characterization of the wood. In relation to the basic density, it was observed the mean and weighted values of 0.421 g/cm-3 and 0.424 g/cm-3, respectively, which classifies it as low density. In anatomical characterization, mean values of length of 3.14 mm, width of 27.18 μm, lumen diameter of 15.39 μm and wall thickness of 5.89 μm of the tracheids were obtained, which resulted in 44.72%, 55.28%, 0.90 and 120.72 for the parameters of wall fraction, flexibility coefficient, Runkel index and felting index, respectively. For the chemical composition, low ash contents (0.25%) and extractives (1.91%) were observed, and intermediate lignin (29.93%) and holocellulose (67.91%) contents were observed. In this way, P. glabra wood presents potential for the pulp production, which must be proven through pulping tests. Há mais de um século as espécies de Pinus estão presentes no Brasil, com destaque para o Pinus taeda, com aplicações em diversos setores. Entretanto o Pinus glabra, objeto deste estudo, não conta com muitas informações sobre o potencial tecnológico de sua madeira. Assim o objetivo do estudo é inferir sobre a qualidade da madeira do P. glabra para produção de polpa celulósica, comparando-a ao P. taeda, principal espécie empregada para fabricação de polpa celulósica de fibra longa no Brasil. Para isso foram abatidas quatro árvores, das quais retiraram-se discos visando a caracterização física, química e anatômica da madeira. Em relação a densidade básica (massa seca/volume verde), observaram-se os valores médio e ponderado de 0,421 g/cm-3 e 0,424 g/cm-3, respectivamente, o que a classifica como de baixa densidade. Na caracterização anatômica obtiveram-se os valores médios de comprimento de 3,14 mm, largura de 27,18 µm, diâmetro do lúmen de 15,39 µm e espessura da parede de 5,89 µm dos traqueídeos, que resultaram em 44,72%, 55,28%, 0,90 e 120,72 para os parâmetros de fração parede, coeficiente de flexibilidade, índice de Runkel e índice de enfeltramento, respectivamente. Para a composição química foram observados baixos teores de cinzas (0,25%) e extrativos (1,91%), e teores intermediários de lignina (29,93%) e holocelulose (67,91%). Desta forma a madeira de P. glabra apresenta potencial para produção de polpa celulósica, o qual deve ser comprovado por meio de ensaios de polpação. Instituto de Ecología, A.C. 2020-12-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2632058 10.21829/myb.2020.2632058 Madera y Bosques; Vol. 26 No. 3 (2020): Autumn 2020 Madera y Bosques; Vol. 26 Núm. 3 (2020): Otoño 2020 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2632058/2155 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2632058/2181 10.21829/myb.2018.243163 10.21829/myb.2018.241207 Derechos de autor 2020 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Vivian, Magnos Alan Modes, Karina Soares Caetano, Ana Paula Potential of Pinus glabra wood for pulp production |
| title | Potential of Pinus glabra wood for pulp production |
| title_full | Potential of Pinus glabra wood for pulp production |
| title_fullStr | Potential of Pinus glabra wood for pulp production |
| title_full_unstemmed | Potential of Pinus glabra wood for pulp production |
| title_short | Potential of Pinus glabra wood for pulp production |
| title_sort | potential of pinus glabra wood for pulp production |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2632058 |
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