KOPS - Das Institutionelle Repositorium der Universität Konstanz

Detection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae

Detection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae

Zitieren

Dateien zu dieser Ressource

Prüfsumme: MD5:6426d0df499d7701b330e427f76e736d

SAKER, Martin L., Anne-Dorothee JUNGBLUT, Brett A. NEILAN, Dorothea F. K. RAWN, Vitor M. VASCONCELOS, 2005. Detection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae. In: Toxicon. 46(5), pp. 555-562. ISSN 0041-0101. Available under: doi: 10.1016/j.toxicon.2005.06.021

@article{Saker2005Detec-7743, title={Detection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae}, year={2005}, doi={10.1016/j.toxicon.2005.06.021}, number={5}, volume={46}, issn={0041-0101}, journal={Toxicon}, pages={555--562}, author={Saker, Martin L. and Jungblut, Anne-Dorothee and Neilan, Brett A. and Rawn, Dorothea F. K. and Vasconcelos, Vitor M.} }

<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/rdf/resource/123456789/7743"> <dcterms:title>Detection of microcystin synthetase genes in health food supplements containing the freshwater cyanobacterium Aphanizomenon flos-aquae</dcterms:title> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/7743/1/Saker_Jungblut_2005F081.pdf"/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Neilan, Brett A.</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Toxicon 46 (2005), 5, pp. 555-562</dcterms:bibliographicCitation> <dc:creator>Saker, Martin L.</dc:creator> <dc:creator>Neilan, Brett A.</dc:creator> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:contributor>Vasconcelos, Vitor M.</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/7743"/> <dc:creator>Rawn, Dorothea F. K.</dc:creator> <dc:creator>Jungblut, Anne-Dorothee</dc:creator> <dc:rights>deposit-license</dc:rights> <dcterms:issued>2005</dcterms:issued> <dcterms:abstract xml:lang="eng">In this study we investigated the presence of toxin-producing cyanobacterial contaminants in food supplements manufactured from blooms of the non-toxic freshwater cyanobacterium Aphanizomenon flos-aquae. Previous reports investigating the contamination of health food supplements with toxin-producing cyanobacteria have used chemical and or biochemical methods such as HPLC, ELISA and protein phosphatase assays. Whilst these studies have drawn attention to the presence of hepatotoxic microcystins in some commercially available food supplements, the methods used do not provide any information on the source of the contaminant. Such information would be useful for the quality control of food supplements produced for human consumption. In this study we applied a molecular technique, involving the amplification of the 16s rRNA gene, the phycocyanin operon, and two genes of the microcystin synthetase gene cluster to show that all 12 food supplement samples, sourced from various internet distributors and containing non-toxic A. flos-aquae, also contained toxigenic cyanobacteria. Sequencing of the microcystin synthetase genes detected in all of the food supplements showed that M. aeruginosa was the organism responsible for the production of microcystins in the samples. The presence of microcystins in the food supplements was confirmed by ELISA, with concentrations within the range of 0.1 4.72 μg g−1 (microcystin-LR equivalents). Given that the molecular methods applied here are highly sensitive, and show good agreement with the results obtained from ELISA, we believe that they could potentially be used as a quality control technique for food products that contain cyanobacteria.</dcterms:abstract> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:37:12Z</dcterms:available> <dc:language>eng</dc:language> <dc:format>application/pdf</dc:format> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Vasconcelos, Vitor M.</dc:creator> <dc:contributor>Rawn, Dorothea F. K.</dc:contributor> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/7743/1/Saker_Jungblut_2005F081.pdf"/> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:contributor>Saker, Martin L.</dc:contributor> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:37:12Z</dc:date> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Jungblut, Anne-Dorothee</dc:contributor> </rdf:Description> </rdf:RDF>

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

Saker_Jungblut_2005F081.pdf 230

Das Dokument erscheint in:

deposit-license Solange nicht anders angezeigt, wird die Lizenz wie folgt beschrieben: deposit-license

KOPS Suche


Stöbern

Mein Benutzerkonto