Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus
Autor(a) principal: | |
---|---|
Data de Publicação: | 2000 |
Outros Autores: | , , |
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=S0104-66322000000400045 |
Resumo: | In the present work rheological characteristics and volumetric oxygen transfer coefficient (kLa) were investigated during batch cultivations of Streptomyces clavuligerus NRRL 3585 for production of clavulanic acid. The experimental rheological data could be adequately described in terms of the power law model and logistic equation. Significant changes in the rheological parameters consistency index (K) and flow behavior index (n) were observed with the fermentation evolution. Interesting correlations between the consistency index (K)/biomass concentration (C X) and the flow behavior index (n)/biomass concentration were proposed. Volumetric oxygen mass transfer coefficient (kLa) was determined by the gas balance method. Classical correlation relating the volumetric oxygen mass transfer coefficient to the operating conditions, physical and to transport properties, including apparent viscosity (muap), could be applied to the experimental results. |
id |
ABEQ-1_678ea23211479de966418c5250aa4c99 |
---|---|
oai_identifier_str |
oai:scielo:S0104-66322000000400045 |
network_acronym_str |
ABEQ-1 |
network_name_str |
Brazilian Journal of Chemical Engineering |
repository_id_str |
|
spelling |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerusrheologyoxygen transferclavulanic acidStreptomyces clavuligerusIn the present work rheological characteristics and volumetric oxygen transfer coefficient (kLa) were investigated during batch cultivations of Streptomyces clavuligerus NRRL 3585 for production of clavulanic acid. The experimental rheological data could be adequately described in terms of the power law model and logistic equation. Significant changes in the rheological parameters consistency index (K) and flow behavior index (n) were observed with the fermentation evolution. Interesting correlations between the consistency index (K)/biomass concentration (C X) and the flow behavior index (n)/biomass concentration were proposed. Volumetric oxygen mass transfer coefficient (kLa) was determined by the gas balance method. Classical correlation relating the volumetric oxygen mass transfer coefficient to the operating conditions, physical and to transport properties, including apparent viscosity (muap), could be applied to the experimental results.Brazilian Society of Chemical Engineering2000-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400045Brazilian Journal of Chemical Engineering v.17 n.4-7 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000400045info:eu-repo/semantics/openAccessGouveia,E. R.Baptista-Neto,A.Hokka,C.O.Badino Jr.,A.C.eng2001-03-16T00:00:00Zoai:scielo:S0104-66322000000400045Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2001-03-16T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
title |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
spellingShingle |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus Gouveia,E. R. rheology oxygen transfer clavulanic acid Streptomyces clavuligerus |
title_short |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
title_full |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
title_fullStr |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
title_full_unstemmed |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
title_sort |
Studies on the rheology and oxygen mass transfer in the clavulanic acid production by Streptomyces clavuligerus |
author |
Gouveia,E. R. |
author_facet |
Gouveia,E. R. Baptista-Neto,A. Hokka,C.O. Badino Jr.,A.C. |
author_role |
author |
author2 |
Baptista-Neto,A. Hokka,C.O. Badino Jr.,A.C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gouveia,E. R. Baptista-Neto,A. Hokka,C.O. Badino Jr.,A.C. |
dc.subject.por.fl_str_mv |
rheology oxygen transfer clavulanic acid Streptomyces clavuligerus |
topic |
rheology oxygen transfer clavulanic acid Streptomyces clavuligerus |
description |
In the present work rheological characteristics and volumetric oxygen transfer coefficient (kLa) were investigated during batch cultivations of Streptomyces clavuligerus NRRL 3585 for production of clavulanic acid. The experimental rheological data could be adequately described in terms of the power law model and logistic equation. Significant changes in the rheological parameters consistency index (K) and flow behavior index (n) were observed with the fermentation evolution. Interesting correlations between the consistency index (K)/biomass concentration (C X) and the flow behavior index (n)/biomass concentration were proposed. Volumetric oxygen mass transfer coefficient (kLa) was determined by the gas balance method. Classical correlation relating the volumetric oxygen mass transfer coefficient to the operating conditions, physical and to transport properties, including apparent viscosity (muap), could be applied to the experimental results. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-12-01 |
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=S0104-66322000000400045 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400045 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322000000400045 |
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.17 n.4-7 2000 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 |
_version_ |
1754213170783715328 |