Biodegradation of a polymeric dye in a pulsed bed bioreactor by immobilised phanerochaete chrysosporium.
Identifieur interne : 000A09 ( Main/Exploration ); précédent : 000A08; suivant : 000A10Biodegradation of a polymeric dye in a pulsed bed bioreactor by immobilised phanerochaete chrysosporium.
Auteurs : I. Mielgo [Espagne] ; M T Moreira ; G. Feijoo ; J M LemaSource :
- Water research [ 0043-1354 ] ; 2002.
Descripteurs français
- KwdFr :
- Agents colorants (métabolisme), Bioréacteurs (MeSH), Cellules immobilisées (métabolisme), Dépollution biologique de l'environnement (effets des médicaments et des substances chimiques), Facteurs temps (MeSH), Manganèse (pharmacologie), Oxygène (pharmacologie), Peroxyde d'hydrogène (pharmacologie), Phanerochaete (effets des médicaments et des substances chimiques), Phanerochaete (métabolisme), Polluants chimiques de l'eau (métabolisme), Polymères (métabolisme), Purification de l'eau (méthodes), Température (MeSH).
- MESH :
- effets des médicaments et des substances chimiques : Dépollution biologique de l'environnement, Phanerochaete.
- métabolisme : Agents colorants, Cellules immobilisées, Phanerochaete, Polluants chimiques de l'eau, Polymères.
- méthodes : Purification de l'eau.
- pharmacologie : Manganèse, Oxygène, Peroxyde d'hydrogène.
- Bioréacteurs, Facteurs temps, Température.
English descriptors
- KwdEn :
- Biodegradation, Environmental (drug effects), Bioreactors (MeSH), Cells, Immobilized (metabolism), Coloring Agents (metabolism), Hydrogen Peroxide (pharmacology), Manganese (pharmacology), Oxygen (pharmacology), Phanerochaete (drug effects), Phanerochaete (metabolism), Polymers (metabolism), Temperature (MeSH), Time Factors (MeSH), Water Pollutants, Chemical (metabolism), Water Purification (methods).
- MESH :
- chemical , metabolism : Coloring Agents, Polymers, Water Pollutants, Chemical.
- drug effects : Biodegradation, Environmental, Phanerochaete.
- metabolism : Cells, Immobilized, Phanerochaete.
- methods : Water Purification.
- chemical , pharmacology : Hydrogen Peroxide, Manganese, Oxygen.
- Bioreactors, Temperature, Time Factors.
Abstract
An immobilised fungal bioreactor operated with pulsation of the gas-phase is proposed and operated at variable conditions for the continuous biological degradation of complex structures. In order to test the system, a hardly biodegradable dye (Poly R-478) was selected as a model compound and Phanerochaete chrysosporium as the ligninolytic fungus. High percentages of decolourisation--between 65% and 80%--under optimal conditions were achieved. Moreover, the system proved to have high stability with long operational periods (at least, 90 days). During the operation Manganese Peroxidase was the sole ligninolytic enzyme detected which points out this enzyme as the main substance responsible for decolourisation. The optimal conditions established were the following: temperature of 37 degrees C, use of oxygen, Mn2+ concentrations between 33 and 330 microM and exogenous H2O2 added in periodical pulses (as chemical reagent, 1 microM or as H2O2 enzymatically generated by 0.6 U L(-1) glucose oxidase and residual glucose).
DOI: 10.1016/s0043-1354(01)00384-0
PubMed: 12044089
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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In order to test the system, a hardly biodegradable dye (Poly R-478) was selected as a model compound and Phanerochaete chrysosporium as the ligninolytic fungus. High percentages of decolourisation--between 65% and 80%--under optimal conditions were achieved. Moreover, the system proved to have high stability with long operational periods (at least, 90 days). During the operation Manganese Peroxidase was the sole ligninolytic enzyme detected which points out this enzyme as the main substance responsible for decolourisation. The optimal conditions established were the following: temperature of 37 degrees C, use of oxygen, Mn2+ concentrations between 33 and 330 microM and exogenous H2O2 added in periodical pulses (as chemical reagent, 1 microM or as H2O2 enzymatically generated by 0.6 U L(-1) glucose oxidase and residual glucose).</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12044089</PMID><DateCompleted><Year>2003</Year><Month>01</Month><Day>10</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>22</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0043-1354</ISSN><JournalIssue CitedMedium="Print"><Volume>36</Volume><Issue>7</Issue><PubDate><Year>2002</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Water research</Title><ISOAbbreviation>Water Res</ISOAbbreviation></Journal><ArticleTitle>Biodegradation of a polymeric dye in a pulsed bed bioreactor by immobilised phanerochaete chrysosporium.</ArticleTitle><Pagination><MedlinePgn>1896-901</MedlinePgn></Pagination><Abstract><AbstractText>An immobilised fungal bioreactor operated with pulsation of the gas-phase is proposed and operated at variable conditions for the continuous biological degradation of complex structures. 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Feijoo</name><name sortKey="Lema, J M" sort="Lema, J M" uniqKey="Lema J" first="J M" last="Lema">J M Lema</name><name sortKey="Moreira, M T" sort="Moreira, M T" uniqKey="Moreira M" first="M T" last="Moreira">M T Moreira</name></noCountry><country name="Espagne"><region name="Galice"><name sortKey="Mielgo, I" sort="Mielgo, I" uniqKey="Mielgo I" first="I" last="Mielgo">I. Mielgo</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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