Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses

Detalhes bibliográficos
Autor(a) principal: Ruzene, Denise S.
Data de Publicação: 2007
Outros Autores: Gonçalves, A. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/7344
Resumo: Pulps obtained from ethanol/water cooking of sugarcane bagasse were treated at different times using xylanase enzyme obtained from Thermomyces lanuginosus IOC-4145 or commercially (Cartazyme HS, Sandoz Products Ltd.). The enzyme dosage was 18 IU per g of dry pulp and the time varied from 4 h to 12 h. When xylanase from T. lanuginosus was used, the kappa number and viscosity improved independently of the processing time used (4 h, 8 h, and 12 h). After chemical evaluation, the obtained pulps were classified using Fourier Transformed Infra-Red Spectroscopy and Principal Component Analysis. The results showed that the first three principal components explained more than 90 % of the total variance of the pulp spectra.
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spelling Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analysesEthanol/water pulpingSugarcane bagasseXylanase bleachingFourier transform infrared spectraPrincipal component analysisScience & TechnologyPulps obtained from ethanol/water cooking of sugarcane bagasse were treated at different times using xylanase enzyme obtained from Thermomyces lanuginosus IOC-4145 or commercially (Cartazyme HS, Sandoz Products Ltd.). The enzyme dosage was 18 IU per g of dry pulp and the time varied from 4 h to 12 h. When xylanase from T. lanuginosus was used, the kappa number and viscosity improved independently of the processing time used (4 h, 8 h, and 12 h). After chemical evaluation, the obtained pulps were classified using Fourier Transformed Infra-Red Spectroscopy and Principal Component Analysis. The results showed that the first three principal components explained more than 90 % of the total variance of the pulp spectra.FAPESP; CNPq.Springer VerlagVersitaUniversidade do MinhoRuzene, Denise S.Gonçalves, A. R.2007-122007-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/7344eng"Chemical Papers". ISSN 0366-6352. 61:6 (Dec. 2007) 472-476.0366-635210.2478/s11696-007-0064-xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:43:59Zoai:repositorium.sdum.uminho.pt:1822/7344Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:41:35.815752Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
title Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
spellingShingle Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
Ruzene, Denise S.
Ethanol/water pulping
Sugarcane bagasse
Xylanase bleaching
Fourier transform infrared spectra
Principal component analysis
Science & Technology
title_short Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
title_full Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
title_fullStr Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
title_full_unstemmed Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
title_sort Ethanol-water pulp enzymatic pretreatment: chemical and FTIR-PCA analyses
author Ruzene, Denise S.
author_facet Ruzene, Denise S.
Gonçalves, A. R.
author_role author
author2 Gonçalves, A. R.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Ruzene, Denise S.
Gonçalves, A. R.
dc.subject.por.fl_str_mv Ethanol/water pulping
Sugarcane bagasse
Xylanase bleaching
Fourier transform infrared spectra
Principal component analysis
Science & Technology
topic Ethanol/water pulping
Sugarcane bagasse
Xylanase bleaching
Fourier transform infrared spectra
Principal component analysis
Science & Technology
description Pulps obtained from ethanol/water cooking of sugarcane bagasse were treated at different times using xylanase enzyme obtained from Thermomyces lanuginosus IOC-4145 or commercially (Cartazyme HS, Sandoz Products Ltd.). The enzyme dosage was 18 IU per g of dry pulp and the time varied from 4 h to 12 h. When xylanase from T. lanuginosus was used, the kappa number and viscosity improved independently of the processing time used (4 h, 8 h, and 12 h). After chemical evaluation, the obtained pulps were classified using Fourier Transformed Infra-Red Spectroscopy and Principal Component Analysis. The results showed that the first three principal components explained more than 90 % of the total variance of the pulp spectra.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
2007-12-01T00:00:00Z
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 http://hdl.handle.net/1822/7344
url http://hdl.handle.net/1822/7344
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Chemical Papers". ISSN 0366-6352. 61:6 (Dec. 2007) 472-476.
0366-6352
10.2478/s11696-007-0064-x
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
Versita
publisher.none.fl_str_mv Springer Verlag
Versita
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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