Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://doi.org/10.1186/s13068-014-0185-8 http://www.locus.ufv.br/handle/123456789/12666 |
Resumo: | Development of efficient methods for production of renewable fuels from lignocellulosic biomass is necessary to maximize yields and reduce operating costs. One of the main challenges to industrial application of the lignocellulosic conversion process is the high costs of cellulolytic enzymes. Recycling of enzymes may present a potential solution to alleviate this problem. In the present study enzymes associated with the insoluble fraction were recycled after enzymatic hydrolysis of pretreated sugarcane bagasse, utilizing different processing conditions, enzyme loadings, and solid loadings. It was found that the enzyme blend from Chrysoporthe cubensis and Penicillium pinophilum was efficient for enzymatic hydrolysis and that a significant portion of enzyme activity could be recovered upon recycling of the insoluble fraction. Enzyme productivity values (g glucose/mg enzyme protein) over all recycle periods were 2.4 and 3.7 for application of 15 and 30 FPU/g of glucan, representing an increase in excess of ten times that obtained in a batch process with the same enzyme blend and an even greater increase compared to commercial cellulase enzymes. Contrary to what may be expected, increasing lignin concentrations throughout the recycle period did not negatively influence hydrolysis efficiency, but conversion efficiencies continuously improved. Recycling of the entire insoluble solids fraction was sufficient for recycling of adhered enzymes together with biomass, indicative of an effective method to increase enzyme productivity. |
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Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recyclingEnzyme recyclingCellulosic biofuelsBioethanolGlucoseLigninDevelopment of efficient methods for production of renewable fuels from lignocellulosic biomass is necessary to maximize yields and reduce operating costs. One of the main challenges to industrial application of the lignocellulosic conversion process is the high costs of cellulolytic enzymes. Recycling of enzymes may present a potential solution to alleviate this problem. In the present study enzymes associated with the insoluble fraction were recycled after enzymatic hydrolysis of pretreated sugarcane bagasse, utilizing different processing conditions, enzyme loadings, and solid loadings. It was found that the enzyme blend from Chrysoporthe cubensis and Penicillium pinophilum was efficient for enzymatic hydrolysis and that a significant portion of enzyme activity could be recovered upon recycling of the insoluble fraction. Enzyme productivity values (g glucose/mg enzyme protein) over all recycle periods were 2.4 and 3.7 for application of 15 and 30 FPU/g of glucan, representing an increase in excess of ten times that obtained in a batch process with the same enzyme blend and an even greater increase compared to commercial cellulase enzymes. Contrary to what may be expected, increasing lignin concentrations throughout the recycle period did not negatively influence hydrolysis efficiency, but conversion efficiencies continuously improved. Recycling of the entire insoluble solids fraction was sufficient for recycling of adhered enzymes together with biomass, indicative of an effective method to increase enzyme productivity.Biotechnology for Biofuels2017-11-01T09:54:10Z2017-11-01T09:54:10Z2015-01-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf17546834https://doi.org/10.1186/s13068-014-0185-8http://www.locus.ufv.br/handle/123456789/12666eng8:5, January 2015Visser, Evan MichaelLeal, Tiago FerreiraAlmeida, Maíra Nicolau deGuimarães, Valéria Montezeinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T06:35:26Zoai:locus.ufv.br:123456789/12666Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T06:35:26LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
title |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
spellingShingle |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling Visser, Evan Michael Enzyme recycling Cellulosic biofuels Bioethanol Glucose Lignin |
title_short |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
title_full |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
title_fullStr |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
title_full_unstemmed |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
title_sort |
Increased enzymatic hydrolysis of sugarcane bagasse from enzyme recycling |
author |
Visser, Evan Michael |
author_facet |
Visser, Evan Michael Leal, Tiago Ferreira Almeida, Maíra Nicolau de Guimarães, Valéria Monteze |
author_role |
author |
author2 |
Leal, Tiago Ferreira Almeida, Maíra Nicolau de Guimarães, Valéria Monteze |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Visser, Evan Michael Leal, Tiago Ferreira Almeida, Maíra Nicolau de Guimarães, Valéria Monteze |
dc.subject.por.fl_str_mv |
Enzyme recycling Cellulosic biofuels Bioethanol Glucose Lignin |
topic |
Enzyme recycling Cellulosic biofuels Bioethanol Glucose Lignin |
description |
Development of efficient methods for production of renewable fuels from lignocellulosic biomass is necessary to maximize yields and reduce operating costs. One of the main challenges to industrial application of the lignocellulosic conversion process is the high costs of cellulolytic enzymes. Recycling of enzymes may present a potential solution to alleviate this problem. In the present study enzymes associated with the insoluble fraction were recycled after enzymatic hydrolysis of pretreated sugarcane bagasse, utilizing different processing conditions, enzyme loadings, and solid loadings. It was found that the enzyme blend from Chrysoporthe cubensis and Penicillium pinophilum was efficient for enzymatic hydrolysis and that a significant portion of enzyme activity could be recovered upon recycling of the insoluble fraction. Enzyme productivity values (g glucose/mg enzyme protein) over all recycle periods were 2.4 and 3.7 for application of 15 and 30 FPU/g of glucan, representing an increase in excess of ten times that obtained in a batch process with the same enzyme blend and an even greater increase compared to commercial cellulase enzymes. Contrary to what may be expected, increasing lignin concentrations throughout the recycle period did not negatively influence hydrolysis efficiency, but conversion efficiencies continuously improved. Recycling of the entire insoluble solids fraction was sufficient for recycling of adhered enzymes together with biomass, indicative of an effective method to increase enzyme productivity. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-22 2017-11-01T09:54:10Z 2017-11-01T09:54:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
17546834 https://doi.org/10.1186/s13068-014-0185-8 http://www.locus.ufv.br/handle/123456789/12666 |
identifier_str_mv |
17546834 |
url |
https://doi.org/10.1186/s13068-014-0185-8 http://www.locus.ufv.br/handle/123456789/12666 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
8:5, January 2015 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
pdf application/pdf |
dc.publisher.none.fl_str_mv |
Biotechnology for Biofuels |
publisher.none.fl_str_mv |
Biotechnology for Biofuels |
dc.source.none.fl_str_mv |
reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
LOCUS Repositório Institucional da UFV |
collection |
LOCUS Repositório Institucional da UFV |
repository.name.fl_str_mv |
LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
fabiojreis@ufv.br |
_version_ |
1817559851432148992 |