Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor
Autor(a) principal: | |
---|---|
Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/4558 |
Resumo: | Biosurfactants are surface active substances which reduce interfacial tension and are produced or excreted at the microbial cell surface. We evaluated the biosurfactant production by Aspergillus fumigatus and Phialemonium sp. in solid state processes using fixed-bed column reactors. We evaluated two media, rice husks alone (simple support) and rice husks plus defatted rice bran (complex support), both enriched with either soy oil or diesel oil. The highest water-in-oil emulsifying activity (EAw/o) obtained was 7.36 EU gÐ1 produced by A. fumigatus growing on complex support enriched with soy oil and supplied with air at a rate of 60 mL gÐ1 hÐ1, while Phialemonium sp. had a maximum production of 6.11 EU gÐ1 using the simple support with diesel oil and an aeration rate of 120 mL gÐ1 hÐ1. The highest oilin-water emulsifying activity (EAo/w) was 12.21 EU gÐ1 produced by Phialemonium sp. on the complex support enriched with diesel oil and at an aeration rate of 60 mL gÐ1 hÐ1, while A. fumigatus produced a maximum EAo/w of 10.98 EU gÐ1 when growing on the complex support with no additional carbon source and an aeration rate of 60 mL gÐ1 hÐ1. |
id |
FURG_28e0891aeca13bc956671fc74d69408f |
---|---|
oai_identifier_str |
oai:repositorio.furg.br:1/4558 |
network_acronym_str |
FURG |
network_name_str |
Repositório Institucional da FURG (RI FURG) |
repository_id_str |
|
spelling |
Martins, Vilásia GuimarãesKalil, Susana JulianoBertolin, Telma ElitaCosta, Jorge Alberto Vieira2014-09-08T21:07:29Z2014-09-08T21:07:29Z2006MARTINS, Vilásia Guimarães. et al. Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor. Zeitschrift für Naturforschung, v. 61c, p. 721-726, 2006. Disponível em: <http://www.znaturforsch.com/ac/v61c/s61c0721.pdf>. Acesso em: 14 jul. 2014.0939-5075http://repositorio.furg.br/handle/1/4558Biosurfactants are surface active substances which reduce interfacial tension and are produced or excreted at the microbial cell surface. We evaluated the biosurfactant production by Aspergillus fumigatus and Phialemonium sp. in solid state processes using fixed-bed column reactors. We evaluated two media, rice husks alone (simple support) and rice husks plus defatted rice bran (complex support), both enriched with either soy oil or diesel oil. The highest water-in-oil emulsifying activity (EAw/o) obtained was 7.36 EU gÐ1 produced by A. fumigatus growing on complex support enriched with soy oil and supplied with air at a rate of 60 mL gÐ1 hÐ1, while Phialemonium sp. had a maximum production of 6.11 EU gÐ1 using the simple support with diesel oil and an aeration rate of 120 mL gÐ1 hÐ1. The highest oilin-water emulsifying activity (EAo/w) was 12.21 EU gÐ1 produced by Phialemonium sp. on the complex support enriched with diesel oil and at an aeration rate of 60 mL gÐ1 hÐ1, while A. fumigatus produced a maximum EAo/w of 10.98 EU gÐ1 when growing on the complex support with no additional carbon source and an aeration rate of 60 mL gÐ1 hÐ1.engBiosurfactantEmulsifying ActivityFixed-Bed BioreactorsSolid State ProcessesSolid State Biosurfactant Production in a Fixed-Bed Column Bioreactorinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGLICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.furg.br/bitstream/1/4558/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52open accessORIGINALSolid State Biosurfactant Production in a Fixed-Bed Column Bioreactor.pdfSolid State Biosurfactant Production in a Fixed-Bed Column Bioreactor.pdfapplication/pdf213024https://repositorio.furg.br/bitstream/1/4558/1/Solid%20State%20Biosurfactant%20Production%20in%20a%20Fixed-Bed%20Column%20Bioreactor.pdf1d06d306b853fff5cc4d9b7b68fa4498MD51open access1/45582014-09-08 18:07:29.067open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2014-09-08T21:07:29Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
title |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
spellingShingle |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor Martins, Vilásia Guimarães Biosurfactant Emulsifying Activity Fixed-Bed Bioreactors Solid State Processes |
title_short |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
title_full |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
title_fullStr |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
title_full_unstemmed |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
title_sort |
Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor |
author |
Martins, Vilásia Guimarães |
author_facet |
Martins, Vilásia Guimarães Kalil, Susana Juliano Bertolin, Telma Elita Costa, Jorge Alberto Vieira |
author_role |
author |
author2 |
Kalil, Susana Juliano Bertolin, Telma Elita Costa, Jorge Alberto Vieira |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Martins, Vilásia Guimarães Kalil, Susana Juliano Bertolin, Telma Elita Costa, Jorge Alberto Vieira |
dc.subject.por.fl_str_mv |
Biosurfactant Emulsifying Activity Fixed-Bed Bioreactors Solid State Processes |
topic |
Biosurfactant Emulsifying Activity Fixed-Bed Bioreactors Solid State Processes |
description |
Biosurfactants are surface active substances which reduce interfacial tension and are produced or excreted at the microbial cell surface. We evaluated the biosurfactant production by Aspergillus fumigatus and Phialemonium sp. in solid state processes using fixed-bed column reactors. We evaluated two media, rice husks alone (simple support) and rice husks plus defatted rice bran (complex support), both enriched with either soy oil or diesel oil. The highest water-in-oil emulsifying activity (EAw/o) obtained was 7.36 EU gÐ1 produced by A. fumigatus growing on complex support enriched with soy oil and supplied with air at a rate of 60 mL gÐ1 hÐ1, while Phialemonium sp. had a maximum production of 6.11 EU gÐ1 using the simple support with diesel oil and an aeration rate of 120 mL gÐ1 hÐ1. The highest oilin-water emulsifying activity (EAo/w) was 12.21 EU gÐ1 produced by Phialemonium sp. on the complex support enriched with diesel oil and at an aeration rate of 60 mL gÐ1 hÐ1, while A. fumigatus produced a maximum EAo/w of 10.98 EU gÐ1 when growing on the complex support with no additional carbon source and an aeration rate of 60 mL gÐ1 hÐ1. |
publishDate |
2006 |
dc.date.issued.fl_str_mv |
2006 |
dc.date.accessioned.fl_str_mv |
2014-09-08T21:07:29Z |
dc.date.available.fl_str_mv |
2014-09-08T21:07:29Z |
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.citation.fl_str_mv |
MARTINS, Vilásia Guimarães. et al. Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor. Zeitschrift für Naturforschung, v. 61c, p. 721-726, 2006. Disponível em: <http://www.znaturforsch.com/ac/v61c/s61c0721.pdf>. Acesso em: 14 jul. 2014. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/4558 |
dc.identifier.issn.none.fl_str_mv |
0939-5075 |
identifier_str_mv |
MARTINS, Vilásia Guimarães. et al. Solid State Biosurfactant Production in a Fixed-Bed Column Bioreactor. Zeitschrift für Naturforschung, v. 61c, p. 721-726, 2006. Disponível em: <http://www.znaturforsch.com/ac/v61c/s61c0721.pdf>. Acesso em: 14 jul. 2014. 0939-5075 |
url |
http://repositorio.furg.br/handle/1/4558 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
bitstream.url.fl_str_mv |
https://repositorio.furg.br/bitstream/1/4558/2/license.txt https://repositorio.furg.br/bitstream/1/4558/1/Solid%20State%20Biosurfactant%20Production%20in%20a%20Fixed-Bed%20Column%20Bioreactor.pdf |
bitstream.checksum.fl_str_mv |
8a4605be74aa9ea9d79846c1fba20a33 1d06d306b853fff5cc4d9b7b68fa4498 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
_version_ |
1794069246640128000 |