APPLICABILITY EVALUATION OF Cupressus lusitanica FOR PULP PRODUCTION
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad del Bío Bío
2016
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| _version_ | 1876447791654371328 |
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| author | Caio Cesar Faedo de Almeida |
| author_facet | Caio Cesar Faedo de Almeida |
| contents | APPLICABILITY EVALUATION OF Cupressus lusitanica FOR PULP PRODUCTION Caio Cesar Faedo de Almeida Polliana D’Angelo Rios Alexsandro Bayestorff da Cunha Camilla Gabriela Melo Ampessan Alana Spanhol Agrociencias Cypress tracheids fiber lenght Runkel index felting index This paper aimed to study Cupressus lusitanica wood tracheids biometrics along radial direction and chemical analysis in order to encourage the use of new forest species for pulp production in southern Brazil. Axial tracheids anatomical analysis was held in 3 positions, in the pith-periphery direction. Total length, total diameter and lumen diameter were analyzed, and wall thickness, flexibility coefficient, wall fraction, felting index and Runkel’s ratio were calculated based on these variables. Chemical analysis determined total extractives, sodium hydroxide attack degree, ash, lignin and holocellulose content. For anatomical variables, a statistically significant increase in the pith-periphery direction was observed for total length (L = 5,85mm), for total diameter (D = 47,18 µm), lumen diameter (d = 32,92µm) and wall thickness (e = 14,26µm) was observed stabilization from intermediate section. The species was characterized as with high rigidity tracheids (WF = 61,73%), although being considered “good” for wood pulp production (RI = 0,93). The chemical composition showed high lignin content (L = 36,21%) and low holocellulose content (H = 59,19%). Cupressus lusitanica wood showed appropriate anatomical characteristics to be part of the pulp industry raw material supply. However, chemical properties may compromise the species use due to high lignin content. 2016 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48547628012 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Num.4 Vol.18 |
| format | Artículo científico |
| id | redalyc_48547628012 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidad del Bío Bío |
| spellingShingle | APPLICABILITY EVALUATION OF Cupressus lusitanica FOR PULP PRODUCTION Caio Cesar Faedo de Almeida Agrociencias Cypress tracheids fiber lenght Runkel index felting index APPLICABILITY EVALUATION OF Cupressus lusitanica FOR PULP PRODUCTION Caio Cesar Faedo de Almeida Polliana D’Angelo Rios Alexsandro Bayestorff da Cunha Camilla Gabriela Melo Ampessan Alana Spanhol Agrociencias Cypress tracheids fiber lenght Runkel index felting index This paper aimed to study Cupressus lusitanica wood tracheids biometrics along radial direction and chemical analysis in order to encourage the use of new forest species for pulp production in southern Brazil. Axial tracheids anatomical analysis was held in 3 positions, in the pith-periphery direction. Total length, total diameter and lumen diameter were analyzed, and wall thickness, flexibility coefficient, wall fraction, felting index and Runkel’s ratio were calculated based on these variables. Chemical analysis determined total extractives, sodium hydroxide attack degree, ash, lignin and holocellulose content. For anatomical variables, a statistically significant increase in the pith-periphery direction was observed for total length (L = 5,85mm), for total diameter (D = 47,18 µm), lumen diameter (d = 32,92µm) and wall thickness (e = 14,26µm) was observed stabilization from intermediate section. The species was characterized as with high rigidity tracheids (WF = 61,73%), although being considered “good” for wood pulp production (RI = 0,93). The chemical composition showed high lignin content (L = 36,21%) and low holocellulose content (H = 59,19%). Cupressus lusitanica wood showed appropriate anatomical characteristics to be part of the pulp industry raw material supply. However, chemical properties may compromise the species use due to high lignin content. 2016 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48547628012 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Num.4 Vol.18 |
| title | APPLICABILITY EVALUATION OF Cupressus lusitanica FOR PULP PRODUCTION |
| topic | Agrociencias Cypress tracheids fiber lenght Runkel index felting index |
| url | https://www.redalyc.org/articulo.oa?id=48547628012 |