| Spoilage fungi and their mycotoxins in commercially marketed chestnuts. | |
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MedLine Citation:
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PMID: 14527787 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A nationwide survey was carried out to assess mould spoilage of Castanea sativa nuts sold in Canadian grocery stores in 1998-99. Morphological and cultural characters, along with secondary metabolite profiles derived from thin-layer chromatography, were used to sort and identify fungi cultured from nut tissue. Three mycotoxigenic fungi dominated (Penicillium crustosum, Penicillium glabrum/spinulosum and Penicillium discolor) and were isolated at frequencies of 67.1%, 18.6% and 17.7%, respectively, from a total sample size of 350 nuts. Another mycotoxin producer, Aspergillus ochraceus was also isolated, but at a much lower frequency. HPLC and diode array detection were used to confirm the suspected presence of the mycotoxins penitrem A, chaetoglobosin A and C, emodin and ochratoxin A in extracts prepared from naturally infected nut tissue. To the best of our knowledge, this is the first time emodin has been found in a naturally contaminated food source. |
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Authors:
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David P Overy; Keith A Seifert; Marc E Savard; Jens C Frisvad |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of food microbiology Volume: 88 ISSN: 0168-1605 ISO Abbreviation: Int. J. Food Microbiol. Publication Date: 2003 Nov |
Date Detail:
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Created Date: 2003-10-06 Completed Date: 2003-12-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8412849 Medline TA: Int J Food Microbiol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 69-77 Citation Subset: IM |
Affiliation:
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Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Research Branch, Ottawa, Ontario, Canada K1A 0C6. david.overy@biocentrum.dtu.dk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aspergillus ochraceus
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isolation & purification*,
metabolism Chromatography, Thin Layer Food Contamination / analysis Food Microbiology Mycotoxins / analysis* Nuts / microbiology* Penicillium / isolation & purification*, metabolism |
| Chemical | |
Reg. No./Substance:
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0/Mycotoxins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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