Chemical composition of coniferous wood species occurring in Turkey

Hafızoğlu, Harzemşah; Usta, Mehmet

doi:10.1007/s00107-004-0539-1

Cited by 21 publications

(16 citation statements)

References 1 publication

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“…Compared to other pine species, the amount of lignin is greater than the values of 24-25.3 % recorded for Pinus michoacana, P. montezumae, P. oocarpa, P. pringlei and P. teocote (Ávila, 2011;Bernabé et al 2013), similar to the values of 26.1 to 28.5 % estimated for Pinus caribea, P. montezumae, P. patula, P. pseudostrobus, P. rudis and P. strobus (Islas, 1992;Lima, 2013), and lower than the values estimated (28.9-30.4 %) for P. cembroides, P. johannis, P. maximartinezii and P. pinceana. The obtained values are within the range of extracts in ethanolbenzene (20.2 -30.3 %) reported for different pine species in other countries (Shimizu, 1991;Shupe et al, 1997;Fengel and Wegener, 2003;Hafızoğlu and Usta, 2005;Rowell et al , 2005). …”

Section: Resultados Y Discusiónsupporting

confidence: 84%

“…The content of extracts of the wood in ethanol-benzene was significantly higher (p < 0.05) in P. ayacahuite than in P. leiophylla and P. herrerae (Table 2). The obtained values are within the range of extracts in ethanolbenzene (0.5 -12 %) reported for different pine species in other countries (Shimizu, 1991;Shupe et al, 1997;Fengel and Wegener, 2003;Hafızoğlu and Usta, 2005;Rowell et al, 2005). There are no records for this type of extracts in Mexico.…”

Section: Resultados Y Discusiónsupporting

confidence: 79%

“…6 %) (Revilla, 2011, cited by Bernabé et al , 2013. The cellulose contents in the studied species also ranges between 30 and 61.6 % for the wood of pine species of other countries (Shimizu, 1991;Shupe et al, 1997;Fengel and Wegener, 2003;Hafızoğlu and Usta, 2005;Rowell et al , 2005).…”

Section: Resultados Y Discusiónmentioning

confidence: 71%

“…6 %) and P. pinceana (31.1 %). The values for the wood of foreign pines range between 18 and 41.2 % (Shimizu, 1991;Shupe et al, 1997;Fengel and Wegener, 2003;Hafızoğlu and Usta, 2005;Rowell et al , 2005); therefore, the contents of these compounds (23. 4-24.…”

Section: Resultados Y Discusiónmentioning

confidence: 99%

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Composición lignocelulósica de Pinus ayacahuite Ehrenb. ex Schltdl., P. leiophylla Schlecht. & Cham. y P. herrerae Martínez

Honorato-Salazar

Hidalgo

Hernández

2017

RMCF

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En el municipio Pueblo Nuevo, Durango se produce la cuarta parte de la producción maderable estatal y 89 % se basa en 12 especies de Pinus; sin embargo, no existen estudios sobre la composición química de la madera de los pinos que se aprovechan. El objetivo de este trabajo fue determinar la composición lignocelulósica y los contenidos de cenizas, extractos en etanol-benceno y en etanol de la madera de Pinus ayacahuite, P. leiophyla y P. herrerae, de acuerdo con los procedimientos de las normas TAPPI y ASTM. Se tomaron muestras al azar de cinco a seis árboles por especie, con cinco repeticiones por árbol para cada prueba. Se efectuaron pruebas de normalidad y homogeneidad de varianzas de los datos obtenidos y una comparación múltiple de medias (Bonferroni, α = 0.05) con el programa SAS. Con excepción del contenido de cenizas, los resultados mostraron que existen diferencias significativas entre especies (p < 0.05), para los valores promedio de los contenidos determinados. La madera de Pinus ayacahuite tiene altos contenidos de extractos en etanol-benceno y de lignina. La de P. herreae presenta valores menores, pero los de holocelulosa y celulosa son superiores. La madera de P. leiophylla tiene contenidos de holocelulosa, celulosa, hemicelulosas y cenizas más bajos. La lignina, hemicelulosas y celulosa de la madera de loss taxa estudiados apoya su uso como fuente de materia prima para la obtención de pulpa para papel y biocombustibles líquidos.

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Section: Resultados Y Discusiónsupporting

confidence: 84%

Section: Resultados Y Discusiónsupporting

confidence: 79%

Section: Resultados Y Discusiónmentioning

confidence: 71%

Section: Resultados Y Discusiónmentioning

confidence: 99%

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Composición lignocelulósica de Pinus ayacahuite Ehrenb. ex Schltdl., P. leiophylla Schlecht. & Cham. y P. herrerae Martínez

Honorato-Salazar

Hidalgo

Hernández

2017

RMCF

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“…For C. glauca, Okino et al (2008) found 32% Klason lignin and 1.1% extractives (with tolueneethanol 2:1, ethanol and hot water), while Hafizoglu and Usta (2005) report similar results for Klason lignin in C. sempervirens.…”

Section: Chemical Compositionmentioning

confidence: 77%

Characterization of Cypress Wood for Kraft Pulp Production

Santos¹,

Anjos²,

Morais³

et al. 2014

BioResources

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Wood samples of Cupressus arizonica, C. lusitanica, and C. sempervirens were evaluated for chemical, anatomical, and pulp characteristics as raw material for pulp production. Two 17-year-old trees per species were harvested, and wood samples were taken at a height of 2 m. Wood chips from Pinus pinaster (Portugal) and P. sylvestris (Finland) were used as references. C. arizonica differed from C. lusitanica and C. sempervirens with significantly lower (p < 0.05) tracheid diameter and wall thickness in the earlywood. The total extractives contents were 3.9%, 3.3%, and 2.5% for C. lusitanica, C. sempervirens, and C. arizonica, respectively, lower than the 5.1% for P. pinaster and 4.5% for P. sylvestris. Klason lignin content ranged from 33.0 to 35.6%, higher than the 28.0 to 28.7% for the pinewoods. The kraft pulp yields for C. arizonica, C. lusitanica, and C. sempervirens were 37.7%, 36.7%, and 38.7%, respectively, with kappa numbers of 32.0, 31.6, and 28.7, respectively; the yield values were 40.8% and 42.8%, with kappa numbers of 23.4 and 21.0, for P. pinaster and P. sylvestris, respectively. The cypress species are clearly different from pine in relation to wood pulping behavior. Among the cypress, C. sempervirens provided the best pulping results.

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