Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor

Detalhes bibliográficos
Autor(a) principal: Lopes, Marlene
Data de Publicação: 2013
Outros Autores: Mota, M., Belo, Isabel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/27521
Resumo: Oxygen mass transfer from air to the liquid phase in bioreactors with aerobic cultures has long been a serious impairment to the productivity of various bioprocesses. An increase of the oxygen mass transfer rate (OTR) can be the key to overcome oxygen limitation. The influence of higher air pressure on OTR was measured and a significantly enhanced OTR could be obtained. The oxygen volumetric mass transfer coefficient (kLa) was described by a function of the air pressure in a stirred lab-scale pressurized bioreactor. The correlation obtained proved that kLa slightly decreased with higher air pressure, following a power function.
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spelling Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactorAir pressureOxygen mass transferOxygen transfer coefficientPressurized bioreactorScience & TechnologyOxygen mass transfer from air to the liquid phase in bioreactors with aerobic cultures has long been a serious impairment to the productivity of various bioprocesses. An increase of the oxygen mass transfer rate (OTR) can be the key to overcome oxygen limitation. The influence of higher air pressure on OTR was measured and a significantly enhanced OTR could be obtained. The oxygen volumetric mass transfer coefficient (kLa) was described by a function of the air pressure in a stirred lab-scale pressurized bioreactor. The correlation obtained proved that kLa slightly decreased with higher air pressure, following a power function.The authors acknowledge the financial support provided by the Fundacao para a Ciencia e Tecnologia (Grant SFRH/BD/47371/2008).WileyWiley-VCH Verlag GMBHUniversidade do MinhoLopes, MarleneMota, M.Belo, Isabel2013-07-062013-07-06T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/27521eng0930-75161521-412510.1002/ceat.201300082info: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:RCAAP2023-07-21T11:56:10Zoai:repositorium.sdum.uminho.pt:1822/27521Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:45:47.077289Repositório 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 Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
title Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
spellingShingle Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
Lopes, Marlene
Air pressure
Oxygen mass transfer
Oxygen transfer coefficient
Pressurized bioreactor
Science & Technology
title_short Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
title_full Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
title_fullStr Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
title_full_unstemmed Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
title_sort Oxygen mass transfer rate in a pressurized lab-scale stirred bioreactor
author Lopes, Marlene
author_facet Lopes, Marlene
Mota, M.
Belo, Isabel
author_role author
author2 Mota, M.
Belo, Isabel
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Lopes, Marlene
Mota, M.
Belo, Isabel
dc.subject.por.fl_str_mv Air pressure
Oxygen mass transfer
Oxygen transfer coefficient
Pressurized bioreactor
Science & Technology
topic Air pressure
Oxygen mass transfer
Oxygen transfer coefficient
Pressurized bioreactor
Science & Technology
description Oxygen mass transfer from air to the liquid phase in bioreactors with aerobic cultures has long been a serious impairment to the productivity of various bioprocesses. An increase of the oxygen mass transfer rate (OTR) can be the key to overcome oxygen limitation. The influence of higher air pressure on OTR was measured and a significantly enhanced OTR could be obtained. The oxygen volumetric mass transfer coefficient (kLa) was described by a function of the air pressure in a stirred lab-scale pressurized bioreactor. The correlation obtained proved that kLa slightly decreased with higher air pressure, following a power function.
publishDate 2013
dc.date.none.fl_str_mv 2013-07-06
2013-07-06T00:00:00Z
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/1822/27521
url http://hdl.handle.net/1822/27521
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0930-7516
1521-4125
10.1002/ceat.201300082
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 Wiley
Wiley-VCH Verlag GMBH
publisher.none.fl_str_mv Wiley
Wiley-VCH Verlag GMBH
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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