Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/44364
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Silva, G. | por |
dc.contributor.author | Barbosa, B. C. A. | por |
dc.contributor.author | Rodrigues, K. | por |
dc.contributor.author | Aquino, M. | por |
dc.contributor.author | Pereira, Luciana | por |
dc.date.accessioned | 2017-01-18T09:16:25Z | - |
dc.date.available | 2017-01-18T09:16:25Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Silva, G.; Barbosa, B. C. A.; Rodrigues, K.; Aquino, M.; Pereira, Luciana, Potential of the filamentous fungus Aspergillus niger AN 400 to degrade Atrazine in wastewaters. Biocatalysis and Agricultural Biotechnology, 9, 162-167, 2017 | por |
dc.identifier.issn | 1878-8181 | por |
dc.identifier.uri | https://hdl.handle.net/1822/44364 | - |
dc.description.abstract | This research aims to evaluate the ability of the fungal specie Aspergillus niger AN 400 to metabolize atrazine (ATZ) in model wastewaters, as most of the research with this worldwide used herbicide is focused on bacteria and on soil bioremediation. Firstly, the tolerance of A. niger for ATZ was evaluated in petri dishes. A. niger growth in all the tested ATZ concentrations, up to 30 mg L1. Biodegradation of ATZ was then conducted in batch reactors of 3 L, with dispersed fungal biomass. Reactors were operated for 8 days at different conditions: without glucose (RG0) and glucose at concentrations of 0.5; 1.0; 2.0; 3.0; 4.0 and 5.0 g L1 - RG0.5; RG1; RG2; RG3; RG4 and RG5, respectively. Control (RC) includes a reactor in the absence of fungal spores. The highest ATZ removal, 72%, occurred in RG3. At higher glucose concentration, substrate competition kinetics may be the responsible for the decrease of biodegradation rate constants. Only 50% of Chemical Oxygen Demand (COD) removal was obtained due to the presence of methanol used to dissolve ATZ, which has contributed for most of the COD in reactors. Detoxification of the ATZ solution by the biological treatment was observed by the Allium test. | por |
dc.description.sponsorship | The authors thank CAPES for the PhD scholarships and wich and CNPQ there search productivity grantPQ2(311203/2012-4) and the bagPDE (200444/2014-0). Acknowledges also to the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UID/BIO/04469/2013 unit and COMPETE 2020 (POCI-01-0145-FEDER-006684) and BioTecNorte operation (NORTE01-0145-FEDER-000004) funded by European Regional Development Fund under the scope of Norte2020 - Programa Operacional Regional do Norte. Luciana Pereira a post-doc fellowship (SFRH/BPD/110235/ 2015) from FCT. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier B.V. | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147337/PT | por |
dc.relation | SFRH/BPD/110235/2015 | por |
dc.rights | openAccess | por |
dc.subject | Allium test | por |
dc.subject | Aspergillus niger | por |
dc.subject | Atrazine | por |
dc.subject | Biodegradation | por |
dc.subject | Glucose | por |
dc.subject | Substrate competition kinetics | por |
dc.title | Potential of the filamentous fungus Aspergillus niger AN 400 to degrade Atrazine in wastewaters | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.journals.elsevier.com/biocatalysis-and-agricultural-biotechnology | por |
dc.comments | CEB46523 | por |
sdum.publicationstatus | info:eu-repo/semantics/publishedVersion | por |
oaire.citationStartPage | 162 | por |
oaire.citationEndPage | 167 | por |
oaire.citationConferencePlace | Netherlands | - |
oaire.citationTitle | Biocatalysis and Agricultural Biotechnology | por |
oaire.citationVolume | 9 | por |
dc.date.updated | 2017-01-13T10:49:03Z | - |
dc.identifier.doi | 10.1016/j.bcab.2016.12.013 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Biocatalysis and Agricultural Biotechnology | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
document_46523_1.pdf | 606,86 kB | Adobe PDF | Ver/Abrir |