Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties

The purpose of this study is to investigate the effect of pH on cellulase enzyme activity on the drainage and strength properties of OCC pulp. Recycled OCC pulp was pretreated with consistency 0.4 percent, in constant condition the temperature is 50˚C, duration 1 hour and range pH:4-4.5, 8-8.5 with...

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Autores principales:	Ghasem Asadpour, Hadi Boroshkian, Hossein Resalaty
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2018
Materias:	OCC pulp Cellulase Enzyme freeness pH effect Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/7b38da6fd48648078d7863ea9cca86c3
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spelling	oai:doaj.org-article:7b38da6fd48648078d7863ea9cca86c32021-12-02T02:20:06ZInvestigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties1735-09132383-112X10.22092/ijwpr.2018.121405.1470https://doaj.org/article/7b38da6fd48648078d7863ea9cca86c32018-11-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_116678_010d81877703fbc19f44997fb8110f84.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XThe purpose of this study is to investigate the effect of pH on cellulase enzyme activity on the drainage and strength properties of OCC pulp. Recycled OCC pulp was pretreated with consistency 0.4 percent, in constant condition the temperature is 50˚C, duration 1 hour and range pH:4-4.5, 8-8.5 with cellulase enzyme at three levels 0.1, 0.3 and 0.5 percent (according to paper pulp dry weight). The results showed that pretreatment of cellulase enhances the freeness of pulp in comparison with the control samples, but by increasing the concentration of enzyme, the freeness of pulp was reduced in pH:4-4.5 the highest freeness is at the level of 0.1 percent and in pH:8-8.5 at the level of 0.3 percent. Also, papers were evaluated for resistance properties. The results showed that the increase in the use of cellulase enzyme has increased the tensile and burst strength index. As, in the alkaline pH, the effect of the cellulase enzyme on the increase of these strength was higher than the acid pH. The OCC pulp strength tear index, only in low levels of cellulase enzyme and in acidic pH, increased strength was observed, but with increasing enzyme consumption, there was a decrease in tear strength. Also, for strength to crushing, there was no specific trend regarding the amount of enzyme and pH on enzyme function.Ghasem AsadpourHadi BoroshkianHossein ResalatyRegional Information Center for Science and Technology (RICeST)articleOCC pulpCellulase EnzymefreenesspH effectForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 33, Iss 3, Pp 381-390 (2018)
institution	DOAJ
collection	DOAJ
language	FA
topic	OCC pulp Cellulase Enzyme freeness pH effect Forestry SD1-669.5
spellingShingle	OCC pulp Cellulase Enzyme freeness pH effect Forestry SD1-669.5 Ghasem Asadpour Hadi Boroshkian Hossein Resalaty Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
description	The purpose of this study is to investigate the effect of pH on cellulase enzyme activity on the drainage and strength properties of OCC pulp. Recycled OCC pulp was pretreated with consistency 0.4 percent, in constant condition the temperature is 50˚C, duration 1 hour and range pH:4-4.5, 8-8.5 with cellulase enzyme at three levels 0.1, 0.3 and 0.5 percent (according to paper pulp dry weight). The results showed that pretreatment of cellulase enhances the freeness of pulp in comparison with the control samples, but by increasing the concentration of enzyme, the freeness of pulp was reduced in pH:4-4.5 the highest freeness is at the level of 0.1 percent and in pH:8-8.5 at the level of 0.3 percent. Also, papers were evaluated for resistance properties. The results showed that the increase in the use of cellulase enzyme has increased the tensile and burst strength index. As, in the alkaline pH, the effect of the cellulase enzyme on the increase of these strength was higher than the acid pH. The OCC pulp strength tear index, only in low levels of cellulase enzyme and in acidic pH, increased strength was observed, but with increasing enzyme consumption, there was a decrease in tear strength. Also, for strength to crushing, there was no specific trend regarding the amount of enzyme and pH on enzyme function.
format	article
author	Ghasem Asadpour Hadi Boroshkian Hossein Resalaty
author_facet	Ghasem Asadpour Hadi Boroshkian Hossein Resalaty
author_sort	Ghasem Asadpour
title	Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
title_short	Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
title_full	Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
title_fullStr	Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
title_full_unstemmed	Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties
title_sort	investigating the effect of ph on cellulase enzyme efficiency on the occ pulp properties
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2018
url	https://doaj.org/article/7b38da6fd48648078d7863ea9cca86c3
work_keys_str_mv	AT ghasemasadpour investigatingtheeffectofphoncellulaseenzymeefficiencyontheoccpulpproperties AT hadiboroshkian investigatingtheeffectofphoncellulaseenzymeefficiencyontheoccpulpproperties AT hosseinresalaty investigatingtheeffectofphoncellulaseenzymeefficiencyontheoccpulpproperties
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Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties

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