Biodegradation of s-triazine xenobiotics

Lade...
Vorschaubild
Dateien
Biodegradation_of_s_triazine.pdf
Biodegradation_of_s_triazine.pdfGröße: 1.68 MBDownloads: 588
Datum
1987
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
FEMS Microbiology Reviews. 1987, 46(2), pp. 93-116. eISSN 1574-6968. Available under: doi: 10.1111/j.1574-6968.1987.tb02454.x
Zusammenfassung

Abstract Biodegradation of xenobiotic compounds is examined with s-triazines as an example and with biological treatment of wastewater containing s-triazines as an aim. s-Triazines have been termed recalcitrant, but examination of the literature indicates that a potential for biodegradation exists. Nitrogen-limited enrichment cultures yield organisms able to degrade by-products of the industrial synthesis of s-triazine herbicides as sources of nitrogen. The choice of inoculum for these enrichments is important and often allows for successful enrichment after simple batch culture, but organisms containing several degradative reactions could be obtained only after selection in extended culture. Routine, specific determinations of all s-triazines (by HPLC) were essential throughout the work. Molar growth yields show complete mass balances for the utilization of s-triazines. Kinetic experiments indicate that specific degradation rates of s-triazines in growing cells are about 0.4 mkat/kg of protein. Characterised biochemical pathways consist of a series of hydrolytic cleavages of chloro-, amino- and alkylamino-groups from the s-triazine ring. Pathways converge to cyanuric acid, which is subject to hydrolytic ring cleavage to CO2 and NH4+ via hydrolysis of biuret and urea. Our cultures degraded all significant s-triazines in real wastewater. But the system was not practicable because the specific activities of some enzymes were too low, because of inhibition by salt in the wastewater and because expensive carbon sources were necessary. Improved planning for enrichment cultures is seen to be necessary and this depends on adequate knowledge of the chemistry of the wastes.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
s-Triazine, Biodegradation
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690COOK, Alasdair M., 1987. Biodegradation of s-triazine xenobiotics. In: FEMS Microbiology Reviews. 1987, 46(2), pp. 93-116. eISSN 1574-6968. Available under: doi: 10.1111/j.1574-6968.1987.tb02454.x
BibTex
@article{Cook1987Biode-6885,
  year={1987},
  doi={10.1111/j.1574-6968.1987.tb02454.x},
  title={Biodegradation of s-triazine xenobiotics},
  number={2},
  volume={46},
  journal={FEMS Microbiology Reviews},
  pages={93--116},
  author={Cook, Alasdair M.}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/6885">
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6885/1/Biodegradation_of_s_triazine.pdf"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:54Z</dcterms:available>
    <dc:language>eng</dc:language>
    <dcterms:issued>1987</dcterms:issued>
    <dcterms:bibliographicCitation>First publ. in: FEMS Microbiology Reviews 46 (1987), 2, pp. 93-116</dcterms:bibliographicCitation>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <dc:contributor>Cook, Alasdair M.</dc:contributor>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/6885"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:format>application/pdf</dc:format>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/6885/1/Biodegradation_of_s_triazine.pdf"/>
    <dcterms:abstract xml:lang="eng">Abstract Biodegradation of xenobiotic compounds is examined with s-triazines as an example and with biological treatment of wastewater containing s-triazines as an aim. s-Triazines have been termed recalcitrant, but examination of the literature indicates that a potential for biodegradation exists. Nitrogen-limited enrichment cultures yield organisms able to degrade by-products of the industrial synthesis of s-triazine herbicides as sources of nitrogen. The choice of inoculum for these enrichments is important and often allows for successful enrichment after simple batch culture, but organisms containing several degradative reactions could be obtained only after selection in extended culture. Routine, specific determinations of all s-triazines (by HPLC) were essential throughout the work. Molar growth yields show complete mass balances for the utilization of s-triazines. Kinetic experiments indicate that specific degradation rates of s-triazines in growing cells are about 0.4 mkat/kg of protein. Characterised biochemical pathways consist of a series of hydrolytic cleavages of chloro-, amino- and alkylamino-groups from the s-triazine ring. Pathways converge to cyanuric acid, which is subject to hydrolytic ring cleavage to CO2 and NH4+ via hydrolysis of biuret and urea. Our cultures degraded all significant s-triazines in real wastewater. But the system was not practicable because the specific activities of some enzymes were too low, because of inhibition by salt in the wastewater and because expensive carbon sources were necessary. Improved planning for enrichment cultures is seen to be necessary and this depends on adequate knowledge of the chemistry of the wastes.</dcterms:abstract>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:29:54Z</dc:date>
    <dc:creator>Cook, Alasdair M.</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dcterms:title>Biodegradation of s-triazine xenobiotics</dcterms:title>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Nein
Begutachtet
Diese Publikation teilen