The influence of pre-hydrolysis on the delignification of Hornbeam wood

In this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied. Soda pulping of both pre-hydrolyzed and control chips were conducted applying...

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Autores principales:	Abdolrahim Mohebalian, Ahmad Jahan latibari, Ajang Tajdini, Shadman Pourmosa
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2018
Materias:	HORNBEAM pre-hydrolysis Strength yield kappa number hemicelluloses Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/46520f95021c4e969788097c6f87fd04
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spelling	oai:doaj.org-article:46520f95021c4e969788097c6f87fd042021-12-02T02:01:58ZThe influence of pre-hydrolysis on the delignification of Hornbeam wood1735-09132383-112X10.22092/ijwpr.2018.120886.1465https://doaj.org/article/46520f95021c4e969788097c6f87fd042018-11-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_116676_4609ba9451f476ed8cf4d040222a96d3.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied. Soda pulping of both pre-hydrolyzed and control chips were conducted applying constant pulping variables. The effect of pre-hydrolysis on hemicelluloses removal and sodium hydroxide consumption and pulp characteristic including total yield, reject, pulp freeness, kappa number, and pulp strengths were measured and statically analyzed. In case the effect of variable on measured property was statistically significant, then Duncan multiple range grouping of the measured property was arranged. The result revealed that pre-hydrolysis removed almost 4.2% (based on dry wood) of hemicelluloses of the wood and pre-hydrolysis demonstrated easier soda pulping delignification, due to weakening the lignin-carbohydrate bonds and both total yield, reject and kappa number were reduced. Tensile strength index of the pulp produced using pre-hydrolyzed chips war lower and as the dosage of sodium hydroxide increases, the tensile strength index was reduced initiated from the removal of hemicelluloses which is also lower than control pulp, Tear strength index of the soda pulp from pre-hydrolyzed chips was mildly reduced which is anticipated to be the consequence of fiber weakening and fiber breaking during cooked chips defibration. The effect of pre-hydrolysis variables on tear strength was not statistically significant. Based on the result of this study, hornbeam wood can be a potential source of bio-refining based on lignocellulosic material.Abdolrahim MohebalianAhmad Jahan latibariAjang TajdiniShadman PourmosaRegional Information Center for Science and Technology (RICeST)articleHORNBEAMpre-hydrolysisStrengthyieldkappa numberhemicellulosesForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 33, Iss 3, Pp 359-369 (2018)
institution	DOAJ
collection	DOAJ
language	FA
topic	HORNBEAM pre-hydrolysis Strength yield kappa number hemicelluloses Forestry SD1-669.5
spellingShingle	HORNBEAM pre-hydrolysis Strength yield kappa number hemicelluloses Forestry SD1-669.5 Abdolrahim Mohebalian Ahmad Jahan latibari Ajang Tajdini Shadman Pourmosa The influence of pre-hydrolysis on the delignification of Hornbeam wood
description	In this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied. Soda pulping of both pre-hydrolyzed and control chips were conducted applying constant pulping variables. The effect of pre-hydrolysis on hemicelluloses removal and sodium hydroxide consumption and pulp characteristic including total yield, reject, pulp freeness, kappa number, and pulp strengths were measured and statically analyzed. In case the effect of variable on measured property was statistically significant, then Duncan multiple range grouping of the measured property was arranged. The result revealed that pre-hydrolysis removed almost 4.2% (based on dry wood) of hemicelluloses of the wood and pre-hydrolysis demonstrated easier soda pulping delignification, due to weakening the lignin-carbohydrate bonds and both total yield, reject and kappa number were reduced. Tensile strength index of the pulp produced using pre-hydrolyzed chips war lower and as the dosage of sodium hydroxide increases, the tensile strength index was reduced initiated from the removal of hemicelluloses which is also lower than control pulp, Tear strength index of the soda pulp from pre-hydrolyzed chips was mildly reduced which is anticipated to be the consequence of fiber weakening and fiber breaking during cooked chips defibration. The effect of pre-hydrolysis variables on tear strength was not statistically significant. Based on the result of this study, hornbeam wood can be a potential source of bio-refining based on lignocellulosic material.
format	article
author	Abdolrahim Mohebalian Ahmad Jahan latibari Ajang Tajdini Shadman Pourmosa
author_facet	Abdolrahim Mohebalian Ahmad Jahan latibari Ajang Tajdini Shadman Pourmosa
author_sort	Abdolrahim Mohebalian
title	The influence of pre-hydrolysis on the delignification of Hornbeam wood
title_short	The influence of pre-hydrolysis on the delignification of Hornbeam wood
title_full	The influence of pre-hydrolysis on the delignification of Hornbeam wood
title_fullStr	The influence of pre-hydrolysis on the delignification of Hornbeam wood
title_full_unstemmed	The influence of pre-hydrolysis on the delignification of Hornbeam wood
title_sort	influence of pre-hydrolysis on the delignification of hornbeam wood
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2018
url	https://doaj.org/article/46520f95021c4e969788097c6f87fd04
work_keys_str_mv	AT abdolrahimmohebalian theinfluenceofprehydrolysisonthedelignificationofhornbeamwood AT ahmadjahanlatibari theinfluenceofprehydrolysisonthedelignificationofhornbeamwood AT ajangtajdini theinfluenceofprehydrolysisonthedelignificationofhornbeamwood AT shadmanpourmosa theinfluenceofprehydrolysisonthedelignificationofhornbeamwood AT abdolrahimmohebalian influenceofprehydrolysisonthedelignificationofhornbeamwood AT ahmadjahanlatibari influenceofprehydrolysisonthedelignificationofhornbeamwood AT ajangtajdini influenceofprehydrolysisonthedelignificationofhornbeamwood AT shadmanpourmosa influenceofprehydrolysisonthedelignificationofhornbeamwood
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The influence of pre-hydrolysis on the delignification of Hornbeam wood

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