Ethanol production from paper sludge using kluyveromyces marxianus

Recycled paper sludge is a promising raw material for ethanol production. In this study, we first evaluated the effects of ethanol concentration, solids load, and cellulose crystallinity on the enzymatic hydrolysis of cellulose to produce reducing sugars. We then evaluated the production of ethanol...

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Autores:
Madrid, Lina María
Quintero Díaz, Juan Carlos
Tipo de recurso:
Article of journal
Fecha de publicación:
2011
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/40541
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/40541
http://bdigital.unal.edu.co/30638/
Palabra clave:
Paper sludge
ethanol
Kluyveromyces marxianus
fermentation
hydrolysis
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Madrid, Lina María6878dfa4-b3b6-42c6-916b-3ec34b135f6d300Quintero Díaz, Juan Carlosa05fc482-a899-452f-a83c-3f26100c56453002019-06-28T09:35:23Z2019-06-28T09:35:23Z2011https://repositorio.unal.edu.co/handle/unal/40541http://bdigital.unal.edu.co/30638/Recycled paper sludge is a promising raw material for ethanol production. In this study, we first evaluated the effects of ethanol concentration, solids load, and cellulose crystallinity on the enzymatic hydrolysis of cellulose to produce reducing sugars. We then evaluated the production of ethanol by either saccharification and simultaneous fermentation (SSF) or separated hydrolysis and fermentation (SHF) using the yeast Kluyveromyces marxianus ATCC 36907. We found that cellulose hydrolysis decreased as ethanol concentrations increased; at 40 g/L ethanol, the reducing sugar production was decreased by 79 %. Hydrolysis also decreased as solids load increased; at 9 % of solids, the cellulose conversion was 76 % of the stoichiometric production. The ethanol yield and cellulose conversion rate were higher with SSF as opposed to SHF processes at 72 h of treatment.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/29500Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 78, núm. 170 (2011); 185-191 DYNA; Vol. 78, núm. 170 (2011); 185-191 2346-2183 0012-7353Madrid, Lina María and Quintero Díaz, Juan Carlos (2011) Ethanol production from paper sludge using kluyveromyces marxianus. Dyna; Vol. 78, núm. 170 (2011); 185-191 DYNA; Vol. 78, núm. 170 (2011); 185-191 2346-2183 0012-7353 .Ethanol production from paper sludge using kluyveromyces marxianusArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTPaper sludgeethanolKluyveromyces marxianusfermentationhydrolysisORIGINAL29500-105939-1-PB.pdfapplication/pdf1002614https://repositorio.unal.edu.co/bitstream/unal/40541/1/29500-105939-1-PB.pdf3ccfb8fbea18d34762b08f997342da8cMD51THUMBNAIL29500-105939-1-PB.pdf.jpg29500-105939-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg8747https://repositorio.unal.edu.co/bitstream/unal/40541/2/29500-105939-1-PB.pdf.jpg38cf0bac03b2f7aa43f1468539cd3aa7MD52unal/40541oai:repositorio.unal.edu.co:unal/405412023-01-29 23:05:46.542Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Ethanol production from paper sludge using kluyveromyces marxianus
title Ethanol production from paper sludge using kluyveromyces marxianus
spellingShingle Ethanol production from paper sludge using kluyveromyces marxianus
Paper sludge
ethanol
Kluyveromyces marxianus
fermentation
hydrolysis
title_short Ethanol production from paper sludge using kluyveromyces marxianus
title_full Ethanol production from paper sludge using kluyveromyces marxianus
title_fullStr Ethanol production from paper sludge using kluyveromyces marxianus
title_full_unstemmed Ethanol production from paper sludge using kluyveromyces marxianus
title_sort Ethanol production from paper sludge using kluyveromyces marxianus
dc.creator.fl_str_mv Madrid, Lina María
Quintero Díaz, Juan Carlos
dc.contributor.author.spa.fl_str_mv Madrid, Lina María
Quintero Díaz, Juan Carlos
dc.subject.proposal.spa.fl_str_mv Paper sludge
ethanol
Kluyveromyces marxianus
fermentation
hydrolysis
topic Paper sludge
ethanol
Kluyveromyces marxianus
fermentation
hydrolysis
description Recycled paper sludge is a promising raw material for ethanol production. In this study, we first evaluated the effects of ethanol concentration, solids load, and cellulose crystallinity on the enzymatic hydrolysis of cellulose to produce reducing sugars. We then evaluated the production of ethanol by either saccharification and simultaneous fermentation (SSF) or separated hydrolysis and fermentation (SHF) using the yeast Kluyveromyces marxianus ATCC 36907. We found that cellulose hydrolysis decreased as ethanol concentrations increased; at 40 g/L ethanol, the reducing sugar production was decreased by 79 %. Hydrolysis also decreased as solids load increased; at 9 % of solids, the cellulose conversion was 76 % of the stoichiometric production. The ethanol yield and cellulose conversion rate were higher with SSF as opposed to SHF processes at 72 h of treatment.
publishDate 2011
dc.date.issued.spa.fl_str_mv 2011
dc.date.accessioned.spa.fl_str_mv 2019-06-28T09:35:23Z
dc.date.available.spa.fl_str_mv 2019-06-28T09:35:23Z
dc.type.spa.fl_str_mv Artículo de revista
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url https://repositorio.unal.edu.co/handle/unal/40541
http://bdigital.unal.edu.co/30638/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/dyna/article/view/29500
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Dyna
Dyna
dc.relation.ispartofseries.none.fl_str_mv Dyna; Vol. 78, núm. 170 (2011); 185-191 DYNA; Vol. 78, núm. 170 (2011); 185-191 2346-2183 0012-7353
dc.relation.references.spa.fl_str_mv Madrid, Lina María and Quintero Díaz, Juan Carlos (2011) Ethanol production from paper sludge using kluyveromyces marxianus. Dyna; Vol. 78, núm. 170 (2011); 185-191 DYNA; Vol. 78, núm. 170 (2011); 185-191 2346-2183 0012-7353 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
dc.rights.uri.spa.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia Sede Medellín
institution Universidad Nacional de Colombia
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