Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface

Detalhes bibliográficos
Autor(a) principal: Morán,José Jonathan Vallejos
Data de Publicação: 2021
Outros Autores: Olivera,Carlos Alberto Castañeda, Gonzalez,Lorgio Valdiviezo, Merma,Antonio G., Torem,Maurício Leonardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: REM - International Engineering Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300369
Resumo: Abstract Adsorption of microorganisms and/or their different components onto a mineral surface would modify the surface characteristics of the mineral. Thus, this investigation evaluated the adsorption capacity of the Rhodococcus opacus strain onto an apatite surface. Zeta potential and contact angle measurements of the mineral showed dislocations of the values after interaction with the microorganism. The maximum adsorption density reached was 24.10 mg of bacterial cells per gram of mineral using a biomass concentration of 400 mg/L. The experimental data were linearly fitted by the Freundlich model and the adsorption density as a function of time was linearly fitted by the pseudo-second order kinetic equation. The results showed that the bacterial strain has affinity for the apatite surface and ability to make it hydrophobic.
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spelling Adhesion evaluation of the Rhodococcus opacus strain on an apatite surfacebioflotationadhesionadsorption, apatiteR. opacuszeta potentialAbstract Adsorption of microorganisms and/or their different components onto a mineral surface would modify the surface characteristics of the mineral. Thus, this investigation evaluated the adsorption capacity of the Rhodococcus opacus strain onto an apatite surface. Zeta potential and contact angle measurements of the mineral showed dislocations of the values after interaction with the microorganism. The maximum adsorption density reached was 24.10 mg of bacterial cells per gram of mineral using a biomass concentration of 400 mg/L. The experimental data were linearly fitted by the Freundlich model and the adsorption density as a function of time was linearly fitted by the pseudo-second order kinetic equation. The results showed that the bacterial strain has affinity for the apatite surface and ability to make it hydrophobic.Fundação Gorceix2021-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300369REM - International Engineering Journal v.74 n.3 2021reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672020740118info:eu-repo/semantics/openAccessMorán,José Jonathan VallejosOlivera,Carlos Alberto CastañedaGonzalez,Lorgio ValdiviezoMerma,Antonio G.Torem,Maurício Leonardoeng2021-07-19T00:00:00Zoai:scielo:S2448-167X2021000300369Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2021-07-19T00:00REM - International Engineering Journal - Fundação Gorceix (FG)false
dc.title.none.fl_str_mv Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
title Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
spellingShingle Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
Morán,José Jonathan Vallejos
bioflotation
adhesion
adsorption, apatite
R. opacus
zeta potential
title_short Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
title_full Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
title_fullStr Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
title_full_unstemmed Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
title_sort Adhesion evaluation of the Rhodococcus opacus strain on an apatite surface
author Morán,José Jonathan Vallejos
author_facet Morán,José Jonathan Vallejos
Olivera,Carlos Alberto Castañeda
Gonzalez,Lorgio Valdiviezo
Merma,Antonio G.
Torem,Maurício Leonardo
author_role author
author2 Olivera,Carlos Alberto Castañeda
Gonzalez,Lorgio Valdiviezo
Merma,Antonio G.
Torem,Maurício Leonardo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Morán,José Jonathan Vallejos
Olivera,Carlos Alberto Castañeda
Gonzalez,Lorgio Valdiviezo
Merma,Antonio G.
Torem,Maurício Leonardo
dc.subject.por.fl_str_mv bioflotation
adhesion
adsorption, apatite
R. opacus
zeta potential
topic bioflotation
adhesion
adsorption, apatite
R. opacus
zeta potential
description Abstract Adsorption of microorganisms and/or their different components onto a mineral surface would modify the surface characteristics of the mineral. Thus, this investigation evaluated the adsorption capacity of the Rhodococcus opacus strain onto an apatite surface. Zeta potential and contact angle measurements of the mineral showed dislocations of the values after interaction with the microorganism. The maximum adsorption density reached was 24.10 mg of bacterial cells per gram of mineral using a biomass concentration of 400 mg/L. The experimental data were linearly fitted by the Freundlich model and the adsorption density as a function of time was linearly fitted by the pseudo-second order kinetic equation. The results showed that the bacterial strain has affinity for the apatite surface and ability to make it hydrophobic.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-01
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=S2448-167X2021000300369
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2021000300369
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0370-44672020740118
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 Fundação Gorceix
publisher.none.fl_str_mv Fundação Gorceix
dc.source.none.fl_str_mv REM - International Engineering Journal v.74 n.3 2021
reponame:REM - International Engineering Journal
instname:Fundação Gorceix (FG)
instacron:FG
instname_str Fundação Gorceix (FG)
instacron_str FG
institution FG
reponame_str REM - International Engineering Journal
collection REM - International Engineering Journal
repository.name.fl_str_mv REM - International Engineering Journal - Fundação Gorceix (FG)
repository.mail.fl_str_mv ||editor@rem.com.br
_version_ 1754734691907272704

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