Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment

In this work the introduction of a cellulase treatment prior to NCC isolation was assessed. NCC was produced using sulfuric acid at two different concentrations (62 and 64% wt.). The effect of pore size for filtration step was also assessed. The smaller acid dose leaded to yields up to 65–70% and av...

Descripción completa

Detalles Bibliográficos
Autores: Beltramino Heffes, Facundo, Roncero Vivero, María Blanca|||0000-0002-2694-2368, Vidal Lluciá, Teresa|||0000-0001-6269-4114, Torres López, Antonio Luis|||0000-0002-2431-5176, Valls Vidal, Cristina|||0000-0003-2307-1779
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/28571
Acceso en línea:https://hdl.handle.net/2117/28571
https://dx.doi.org/10.1016/j.biortech.2015.06.007
Access Level:acceso abierto
Palabra clave:Cellulose--Chemistry
Cellulase
Nanocrystalline cellulose
Enzymatic treatment
Yield increase
Acid hydrolysis
Cel·lulosa microcristal·lina
Cel·lulasa
Àrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres::Cel·lulosa
id ES_1c2d206ffebfdf3f0bc0d505b762bc11
oai_identifier_str oai:upcommons.upc.edu:2117/28571
network_acronym_str ES
network_name_str España
repository_id_str
spelling Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatmentBeltramino Heffes, FacundoRoncero Vivero, María Blanca|||0000-0002-2694-2368Vidal Lluciá, Teresa|||0000-0001-6269-4114Torres López, Antonio Luis|||0000-0002-2431-5176Valls Vidal, Cristina|||0000-0003-2307-1779Cellulose--ChemistryCellulaseNanocrystalline celluloseCellulaseEnzymatic treatmentYield increaseAcid hydrolysisCel·lulosa microcristal·linaCel·lulasaÀrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres::Cel·lulosaIn this work the introduction of a cellulase treatment prior to NCC isolation was assessed. NCC was produced using sulfuric acid at two different concentrations (62 and 64% wt.). The effect of pore size for filtration step was also assessed. The smaller acid dose leaded to yields up to 65–70% and average size up to 160 nm. It also produced crystals with reduced sulfur content (0.6–1%). Cellulase pretreatment influenced NCC characteristics, as it increased overall yield a 12%, increased average particle size around 35 nm and reduced NCC sulfur content up to a 0.8%. We found that different conditions of enzymatic treatments led to quantitative differences on their effects on NCC. Acetate buffer used for enzymatic treatments was found to counteract effects of acid. The evidence presented in this work suggested that pretreating fibers with this cellulase represents a very interesting option to partially replace chemicals on NCC isolation20152015-06-0920152015-07-14journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/28571https://dx.doi.org/10.1016/j.biortech.2015.06.007reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/285712026-05-27T15:37:01Z
dc.title.none.fl_str_mv Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
title Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
spellingShingle Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
Beltramino Heffes, Facundo
Cellulose--Chemistry
Cellulase
Nanocrystalline cellulose
Cellulase
Enzymatic treatment
Yield increase
Acid hydrolysis
Cel·lulosa microcristal·lina
Cel·lulasa
Àrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres::Cel·lulosa
title_short Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
title_full Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
title_fullStr Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
title_full_unstemmed Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
title_sort Increasing yield of nanocrystalline cellulose preparation process by a cellulase pretreatment
dc.creator.none.fl_str_mv Beltramino Heffes, Facundo
Roncero Vivero, María Blanca|||0000-0002-2694-2368
Vidal Lluciá, Teresa|||0000-0001-6269-4114
Torres López, Antonio Luis|||0000-0002-2431-5176
Valls Vidal, Cristina|||0000-0003-2307-1779
author Beltramino Heffes, Facundo
author_facet Beltramino Heffes, Facundo
Roncero Vivero, María Blanca|||0000-0002-2694-2368
Vidal Lluciá, Teresa|||0000-0001-6269-4114
Torres López, Antonio Luis|||0000-0002-2431-5176
Valls Vidal, Cristina|||0000-0003-2307-1779
author_role author
author2 Roncero Vivero, María Blanca|||0000-0002-2694-2368
Vidal Lluciá, Teresa|||0000-0001-6269-4114
Torres López, Antonio Luis|||0000-0002-2431-5176
Valls Vidal, Cristina|||0000-0003-2307-1779
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cellulose--Chemistry
Cellulase
Nanocrystalline cellulose
Cellulase
Enzymatic treatment
Yield increase
Acid hydrolysis
Cel·lulosa microcristal·lina
Cel·lulasa
Àrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres::Cel·lulosa
topic Cellulose--Chemistry
Cellulase
Nanocrystalline cellulose
Cellulase
Enzymatic treatment
Yield increase
Acid hydrolysis
Cel·lulosa microcristal·lina
Cel·lulasa
Àrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres::Cel·lulosa
description In this work the introduction of a cellulase treatment prior to NCC isolation was assessed. NCC was produced using sulfuric acid at two different concentrations (62 and 64% wt.). The effect of pore size for filtration step was also assessed. The smaller acid dose leaded to yields up to 65–70% and average size up to 160 nm. It also produced crystals with reduced sulfur content (0.6–1%). Cellulase pretreatment influenced NCC characteristics, as it increased overall yield a 12%, increased average particle size around 35 nm and reduced NCC sulfur content up to a 0.8%. We found that different conditions of enzymatic treatments led to quantitative differences on their effects on NCC. Acetate buffer used for enzymatic treatments was found to counteract effects of acid. The evidence presented in this work suggested that pretreating fibers with this cellulase represents a very interesting option to partially replace chemicals on NCC isolation
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-06-09
2015
2015-07-14
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/28571
https://dx.doi.org/10.1016/j.biortech.2015.06.007
url https://hdl.handle.net/2117/28571
https://dx.doi.org/10.1016/j.biortech.2015.06.007
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869404208489299968
score 15,300724

Similares en LA Referencia