Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México
In the mountain range of Álvarez, San Luis Potosí eighteen oak species have been identified; two of them (Quercus sebifera and Q. tinkhami) included into the Quercus section or white oaks are shrubs. Currently, studies are not known on the wood characteristics of these species, which are only used l...
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| Materiálatiipa: | Online |
| Giella: | spa |
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Instituto de Ecología, A.C.
2016
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| Liŋkkat: | https://myb.ojs.inecol.mx/index.php/myb/article/view/1207 |
| _version_ | 1799769243533705216 |
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| author | Bárcenas-Pazos, Guadalupe M. Ríos-Villa, Rosalva Aguirre-Rivera, J. Rogelio Juárez-Flores, Bertha I. Honorato-Salazar, J. Amador |
| author_facet | Bárcenas-Pazos, Guadalupe M. Ríos-Villa, Rosalva Aguirre-Rivera, J. Rogelio Juárez-Flores, Bertha I. Honorato-Salazar, J. Amador |
| author_sort | Bárcenas-Pazos, Guadalupe M. |
| collection | MYB |
| description | In the mountain range of Álvarez, San Luis Potosí eighteen oak species have been identified; two of them (Quercus sebifera and Q. tinkhami) included into the Quercus section or white oaks are shrubs. Currently, studies are not known on the wood characteristics of these species, which are only used locally in a reduced and rudimentary way. Their chemical composition is presented here. Essays to estimate relative content (%) of lignin, extracts and ashes were carried out; specific gravity was also calculated along with volume of cellulose. Basic statistics were estimated for each parameter obtained. Variance analyses were applied between the essays sets of cellulose, lignin, ash, and extracts. Not significant differences (p > 95%) were found between species for cellulose and lignin. These results were similar to those presented by other authors for Mexican oaks. Ash volume resulted to be greater; it may be due to their particular climate and soil type, mainly. The extracts of Q. sebifera obtained by the ethanol-benzene mixture and by hot water were greater than those published for white oaks. These species were different (p > 95%) for extract content. Ash and extracts richness of these species seems to be related to their aridity adaptations. Relative basic density values for Q. sebifera were medium and high for Q. tinkhami. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1207 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-12072022-11-30T00:33:59Z Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México Composición química y densidad básica relativa de la madera de dos especies arbustivas de encino blanco de la Sierra de Álvarez, SLP, México Bárcenas-Pazos, Guadalupe M. Ríos-Villa, Rosalva Aguirre-Rivera, J. Rogelio Juárez-Flores, Bertha I. Honorato-Salazar, J. Amador Chemical composition extracts oakwood Quercus San Luis Potosí Composición química extractos madera de encino Quercus San Luis Potosí In the mountain range of Álvarez, San Luis Potosí eighteen oak species have been identified; two of them (Quercus sebifera and Q. tinkhami) included into the Quercus section or white oaks are shrubs. Currently, studies are not known on the wood characteristics of these species, which are only used locally in a reduced and rudimentary way. Their chemical composition is presented here. Essays to estimate relative content (%) of lignin, extracts and ashes were carried out; specific gravity was also calculated along with volume of cellulose. Basic statistics were estimated for each parameter obtained. Variance analyses were applied between the essays sets of cellulose, lignin, ash, and extracts. Not significant differences (p > 95%) were found between species for cellulose and lignin. These results were similar to those presented by other authors for Mexican oaks. Ash volume resulted to be greater; it may be due to their particular climate and soil type, mainly. The extracts of Q. sebifera obtained by the ethanol-benzene mixture and by hot water were greater than those published for white oaks. These species were different (p > 95%) for extract content. Ash and extracts richness of these species seems to be related to their aridity adaptations. Relative basic density values for Q. sebifera were medium and high for Q. tinkhami. En la sierra de Álvarez, San Luis Potosí, se han identificado 18 especies de encinos; de ellas, Quercus sebifera y Q. tinkhami son de hábito arbustivo y pertenecen a la sección Quercus o encinos blancos. A la fecha se desconocen estudios sobre las características de su madera, la cual sólo se aprovecha localmente en forma reducida y rudimentaria. En este trabajo se presenta su caracterización química. Se evaluaron los contenidos relativos de lignina, extractos y cenizas, así como la densidad básica relativa y el contenido de celulosa. Se calcularon los estadísticos básicos para cada componente y se realizó un análisis de varianza entre especies para cada parámetro estimado. La cantidad de celulosa y lignina de ambas especies fue estadísticamente similar (p > 95%); además, los valores obtenidos coinciden con los presentados por otros autores para encinos mexicanos. La cantidad de cenizas fue mayor que lo publicado para especies mexicanas del mismo género, lo cual posiblemente se deba a las condiciones de crecimiento de estas especies, particularmente el clima y el tipo de suelo. Sólo los contenidos de extractos de Q. sebifera con la mezcla etanol-benceno y con agua caliente fueron mayores que los registrados para otros encinos blancos. El contenido de extractos fue estadísticamente mayor en Q. sebifera. La riqueza de cenizas y extractos de estas especies parece estar relacionada con su adaptación a las condiciones de aridez en las que crecen. La densidad básica relativa de Q. sebifera es media y la de Q. thinkami, es alta. Instituto de Ecología, A.C. 2016-08-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/1207 10.21829/myb.2008.1431207 Madera y Bosques; Vol. 14 No. 3 (2008): Invierno 2008; 81-94 Madera y Bosques; Vol. 14 Núm. 3 (2008): Invierno 2008; 81-94 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/1207/1381 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Bárcenas-Pazos, Guadalupe M. Ríos-Villa, Rosalva Aguirre-Rivera, J. Rogelio Juárez-Flores, Bertha I. Honorato-Salazar, J. Amador Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title | Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title_full | Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title_fullStr | Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title_full_unstemmed | Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title_short | Chemical composition and relative basic density of two shrub white oak wood species from the Sierra de Álvarez, SLP, México |
| title_sort | chemical composition and relative basic density of two shrub white oak wood species from the sierra de álvarez, slp, méxico |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/1207 |
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