The occurrence of ochratoxin A in coffee

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STUDER-ROHR, Irène, Daniel R. DIETRICH, Josef SCHLATTER, Christian SCHLATTER, 1995. The occurrence of ochratoxin A in coffee. In: Food and Chemical Toxicology. 33(5), pp. 341-355. ISSN 0278-6915. Available under: doi: 10.1016/0278-6915(94)00150-M

@article{StuderRohr1995occur-8446, title={The occurrence of ochratoxin A in coffee}, year={1995}, doi={10.1016/0278-6915(94)00150-M}, number={5}, volume={33}, issn={0278-6915}, journal={Food and Chemical Toxicology}, pages={341--355}, author={Studer-Rohr, Irène and Dietrich, Daniel R. and Schlatter, Josef and Schlatter, Christian} }

<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/123456789/8446"> <dcterms:abstract xml:lang="eng">Ochratoxin A (OA) is a nephrotoxic and nephrocarcinogenic mycotoxin which is predominantly produced by the two ubiquitous fungal genera, Aspergillus and Penicillium. OA is found in foodstuffs, predominantly in cereals but also in coffee beans. Inconsistent results have been published regarding the influence of roasting on the OA content in roasted beans and the transfer into the coffee brew. In the present study an HPLC method was used for the detection of OA in green and roasted coffee beans as well as in the coffee brew. For qualitative confirmation and quantification of low OA levels in roasted coffee beans and coffee brew an additional clean-up step by immunoaffinity column was applied before HPLC analysis. In green coffee beans OA was detected in 13 out of 25 commercial samples analysed (detection limit, 0.5 μg OA/kg). Roasting (250°C, 150 sec) of naturally contaminated green beans or beans inoculated with A. ochraceus resulted only in a small reduction in the OA level. OA was also found to be eluted into the brew. Of 40 coffee brews prepared from commercially available samples OA was detected in 18 brews by HPLC and/or additional immunoaffinity column clean-up in the range of 0.4 to 7.8 μg OA/kg equivalent ground coffee. Our preliminary results suggest, therefore, that regular coffee consumption may contribute to exposure of humans to OA.</dcterms:abstract> <dcterms:title>The occurrence of ochratoxin A in coffee</dcterms:title> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:43:44Z</dc:date> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/8446/1/The_occurrence_of_ochratoxin_A_in_coffee.pdf"/> <dc:language>eng</dc:language> <dc:contributor>Studer-Rohr, Irène</dc:contributor> <dc:creator>Schlatter, Christian</dc:creator> <dc:contributor>Dietrich, Daniel R.</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/8446"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/8446/1/The_occurrence_of_ochratoxin_A_in_coffee.pdf"/> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dcterms:issued>1995</dcterms:issued> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Schlatter, Josef</dc:creator> <dc:format>application/pdf</dc:format> <dc:contributor>Schlatter, Josef</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:bibliographicCitation>First publ. in: Food and Chemical Toxicology 33 (1995), 5, pp. 341-355</dcterms:bibliographicCitation> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:43:44Z</dcterms:available> <dc:rights>deposit-license</dc:rights> <dc:contributor>Schlatter, Christian</dc:contributor> <dc:creator>Studer-Rohr, Irène</dc:creator> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Dietrich, Daniel R.</dc:creator> </rdf:Description> </rdf:RDF>

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