Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/36041 |
Resumo: | Two contaminating fungi were isolated from a bioreactor containing diethylketone and Streptococcus equisimilis, subsequently characterized at molecular level and identified as belonging to the Alternaria and Penicillium genera. The ability of these fungi to biodegrade DEK is evaluated. The kinetic parameters are estimated using four growth kinetic models for biodegradation of organic compounds available in literature. The experimental data for Alternaria sp. and Penicillium sp. was found to be better fitted by the Haldane and the Luong respectively. Biodegradation rate kinetics was evaluated using zero-order, pseudo-first order, pseudo-second order and three-half order models. The pseudo-second-order model was found suitable for all the concentrations of DEK tested for the biodegradation assays using Penicillium sp. whereas for the Alternaria sp. this model just describes properly the assays with initial concentrations of DEK higher than 0.5 g/L. The percentage of biodegraded DEK were approximately 100%, for all the initial concentrations tested. |
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Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungiBiodegradationDiethylketoneFungiGenetic identificationKineticsTwo contaminating fungi were isolated from a bioreactor containing diethylketone and Streptococcus equisimilis, subsequently characterized at molecular level and identified as belonging to the Alternaria and Penicillium genera. The ability of these fungi to biodegrade DEK is evaluated. The kinetic parameters are estimated using four growth kinetic models for biodegradation of organic compounds available in literature. The experimental data for Alternaria sp. and Penicillium sp. was found to be better fitted by the Haldane and the Luong respectively. Biodegradation rate kinetics was evaluated using zero-order, pseudo-first order, pseudo-second order and three-half order models. The pseudo-second-order model was found suitable for all the concentrations of DEK tested for the biodegradation assays using Penicillium sp. whereas for the Alternaria sp. this model just describes properly the assays with initial concentrations of DEK higher than 0.5 g/L. The percentage of biodegraded DEK were approximately 100%, for all the initial concentrations tested.Bentham Science PublishersUniversidade do MinhoCosta, Filomena Natália AraújoNeto, Marta MartinsNicolau, AnaTavares, M. T.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/36041engCosta, F.; Neto, Marta Martins; Nicolau, Ana; Tavares, T., Biodegradation of diethylketone by Penicillium sp. and Alternaria sp. A comparative study biodegradation of diethylketone by fungi. Current Biochemical Engineering, 2(1), 81-89, 20152212-71192212-712710.2174/2212711901666140812225947http://www.eurekaselect.com/110312/journal/current-biochemical-engineeringinfo: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:RCAAP2023-07-21T12:21:00Zoai:repositorium.sdum.uminho.pt:1822/36041Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:14:10.489822Repositório 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 |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
title |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
spellingShingle |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi Costa, Filomena Natália Araújo Biodegradation Diethylketone Fungi Genetic identification Kinetics |
title_short |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
title_full |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
title_fullStr |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
title_full_unstemmed |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
title_sort |
Biodegradation of diethylketone by Penicillium sp. and Alternaria sp.: a comparative study biodegradation of diethylketone by fungi |
author |
Costa, Filomena Natália Araújo |
author_facet |
Costa, Filomena Natália Araújo Neto, Marta Martins Nicolau, Ana Tavares, M. T. |
author_role |
author |
author2 |
Neto, Marta Martins Nicolau, Ana Tavares, M. T. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Costa, Filomena Natália Araújo Neto, Marta Martins Nicolau, Ana Tavares, M. T. |
dc.subject.por.fl_str_mv |
Biodegradation Diethylketone Fungi Genetic identification Kinetics |
topic |
Biodegradation Diethylketone Fungi Genetic identification Kinetics |
description |
Two contaminating fungi were isolated from a bioreactor containing diethylketone and Streptococcus equisimilis, subsequently characterized at molecular level and identified as belonging to the Alternaria and Penicillium genera. The ability of these fungi to biodegrade DEK is evaluated. The kinetic parameters are estimated using four growth kinetic models for biodegradation of organic compounds available in literature. The experimental data for Alternaria sp. and Penicillium sp. was found to be better fitted by the Haldane and the Luong respectively. Biodegradation rate kinetics was evaluated using zero-order, pseudo-first order, pseudo-second order and three-half order models. The pseudo-second-order model was found suitable for all the concentrations of DEK tested for the biodegradation assays using Penicillium sp. whereas for the Alternaria sp. this model just describes properly the assays with initial concentrations of DEK higher than 0.5 g/L. The percentage of biodegraded DEK were approximately 100%, for all the initial concentrations tested. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
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/1822/36041 |
url |
http://hdl.handle.net/1822/36041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Costa, F.; Neto, Marta Martins; Nicolau, Ana; Tavares, T., Biodegradation of diethylketone by Penicillium sp. and Alternaria sp. A comparative study biodegradation of diethylketone by fungi. Current Biochemical Engineering, 2(1), 81-89, 2015 2212-7119 2212-7127 10.2174/2212711901666140812225947 http://www.eurekaselect.com/110312/journal/current-biochemical-engineering |
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 |
Bentham Science Publishers |
publisher.none.fl_str_mv |
Bentham Science Publishers |
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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1799132583279198208 |