An age-structured population balance model for microbial dynamics

Detalhes bibliográficos
Autor(a) principal: Duarte,M.V.E.
Data de Publicação: 2003
Outros Autores: Medeiros,J.L., Araújo,O.Q.F., Coelho,M.A.Z.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100002
Resumo: This work presents an age-structured population balance model (ASPBM) for a bioprocess in a continuous stirred-tank fermentor. It relates the macroscopic properties and dynamic behavior of biomass to the operational parameters and microscopic properties of cells. Population dynamics is governed by two time- and age-dependent density functions for living and dead cells, accounting for the influence of substrate and dissolved oxygen concentrations on cell division, aging and death processes. The ASPBM described biomass and substrate oscillations in aerobic continuous cultures as experimentally observed. It is noteworthy that a small data set consisting of nonsegregated measurements was sufficient to adjust a complex segregated mathematical model.
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spelling An age-structured population balance model for microbial dynamicsPopulation balancepopulation dynamicsyeastautonomous oscillationssegregated modelingThis work presents an age-structured population balance model (ASPBM) for a bioprocess in a continuous stirred-tank fermentor. It relates the macroscopic properties and dynamic behavior of biomass to the operational parameters and microscopic properties of cells. Population dynamics is governed by two time- and age-dependent density functions for living and dead cells, accounting for the influence of substrate and dissolved oxygen concentrations on cell division, aging and death processes. The ASPBM described biomass and substrate oscillations in aerobic continuous cultures as experimentally observed. It is noteworthy that a small data set consisting of nonsegregated measurements was sufficient to adjust a complex segregated mathematical model.Brazilian Society of Chemical Engineering2003-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100002Brazilian Journal of Chemical Engineering v.20 n.1 2003reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322003000100002info:eu-repo/semantics/openAccessDuarte,M.V.E.Medeiros,J.L.Araújo,O.Q.F.Coelho,M.A.Z.eng2003-03-19T00:00:00Zoai:scielo:S0104-66322003000100002Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2003-03-19T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv An age-structured population balance model for microbial dynamics
title An age-structured population balance model for microbial dynamics
spellingShingle An age-structured population balance model for microbial dynamics
Duarte,M.V.E.
Population balance
population dynamics
yeast
autonomous oscillations
segregated modeling
title_short An age-structured population balance model for microbial dynamics
title_full An age-structured population balance model for microbial dynamics
title_fullStr An age-structured population balance model for microbial dynamics
title_full_unstemmed An age-structured population balance model for microbial dynamics
title_sort An age-structured population balance model for microbial dynamics
author Duarte,M.V.E.
author_facet Duarte,M.V.E.
Medeiros,J.L.
Araújo,O.Q.F.
Coelho,M.A.Z.
author_role author
author2 Medeiros,J.L.
Araújo,O.Q.F.
Coelho,M.A.Z.
author2_role author
author
author
dc.contributor.author.fl_str_mv Duarte,M.V.E.
Medeiros,J.L.
Araújo,O.Q.F.
Coelho,M.A.Z.
dc.subject.por.fl_str_mv Population balance
population dynamics
yeast
autonomous oscillations
segregated modeling
topic Population balance
population dynamics
yeast
autonomous oscillations
segregated modeling
description This work presents an age-structured population balance model (ASPBM) for a bioprocess in a continuous stirred-tank fermentor. It relates the macroscopic properties and dynamic behavior of biomass to the operational parameters and microscopic properties of cells. Population dynamics is governed by two time- and age-dependent density functions for living and dead cells, accounting for the influence of substrate and dissolved oxygen concentrations on cell division, aging and death processes. The ASPBM described biomass and substrate oscillations in aerobic continuous cultures as experimentally observed. It is noteworthy that a small data set consisting of nonsegregated measurements was sufficient to adjust a complex segregated mathematical model.
publishDate 2003
dc.date.none.fl_str_mv 2003-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322003000100002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.20 n.1 2003
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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