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Fungal contamination in green coffee beans samples: a public health concern

2017-05Journal article Restricted access
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dc.contributor.authorViegas, Carla
dc.contributor.authorPacífico, Cátia
dc.contributor.authorFaria, Tiago
dc.contributor.authorOliveira, Ana Cebola
dc.contributor.authorCaetano, Liliana Aranha
dc.contributor.authorCarolino, Elisabete
dc.contributor.authorGomes, Anita Quintal
dc.contributor.authorViegas, Susana
dc.date.accessioned2017-05-26T15:15:40Z
dc.date.available2017-05-26T15:15:40Z
dc.date.issued2017-05
dc.description.abstractStudies on the microbiology of coffee cherries and beans have shown that the predominant toxigenic fungal genera (Aspergillus and Penicillium) are natural coffee contaminants. The aim of this study was to investigate the distribution of fungi in Coffea arabica L. (Arabica coffee) and Coffea canephora L. var. robusta (Robusta coffee) green coffee samples obtained from different sources at the pre-roasting stage. Twenty-eight green coffee samples from different countries of origin (Brazil, Timor, Honduras, Angola, Vietnam, Costa Rica, Colombia, Guatemala, Nicaragua, India, and Uganda) were evaluated. The fungal load in the contaminated samples ranged from 0 to 12330 colony forming units (CFU)/g, of which approximately 67% presented contamination levels below 1500 CFU/g, while 11% exhibited intermediate contamination levels between 1500 and 3000 CFU/g. Contamination levels higher than 3000 CFU/g were found in 22% of contaminated coffee samples. Fifteen different fungi were isolated by culture-based methods and Aspergillus species belonging to different sections (complexes). The predominant Aspergillus section detected was Nigri (39%), followed by Aspergillus section Circumdati (29%). Molecular analysis detected the presence of Aspergillus sections Fumigati and Circumdati. The% coffee samples where Aspergillus species were identified by culture-based methods were 96%. Data demonstrated that green coffee beans samples were contaminated with toxigenic fungal species. Since mycotoxins may be resistant to the roasting process, this suggests possible exposure to mycotoxins through consumption of coffee. Further studies need to be conducted to provide information on critical points of coffee processing, such that fungal contamination may be reduced or eliminated and thus exposure to fungi and mycotoxins through coffee handling and consumption be prevented.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationViegas C, Faria T, Caetano LA, Carolino E, Gomes AQ, Viegas S, et al. Fungal contamination in green coffee beans samples: a public health concern. J Toxicol Environ Health A. 2017;80(13-15):719-28.pt_PT
dc.identifier.doi10.1080/15287394.2017.1286927pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/7078
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relation.publisherversionhttp://www.tandfonline.com/doi/full/10.1080/15287394.2017.1286927pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectPublic healthpt_PT
dc.subjectFungal contaminationpt_PT
dc.subjectGreen coffee beanspt_PT
dc.titleFungal contamination in green coffee beans samples: a public health concernpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10pt_PT
oaire.citation.endPage728pt_PT
oaire.citation.issue13-15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.startPage719pt_PT
oaire.citation.titleJournal of Toxicology and Environmental Health, Part A: Current Issuespt_PT
oaire.citation.volume80pt_PT
person.familyNameViegas
person.familyNameCarolino
person.familyNameViegas
person.givenNameCarla
person.givenNameElisabete
person.givenNameSusana
person.identifier248817
person.identifier.ciencia-idEE1E-C639-D70F
person.identifier.ciencia-id1216-EFA3-1E0F
person.identifier.ciencia-idA919-7318-63DC
person.identifier.orcid0000-0002-1545-6479
person.identifier.orcid0000-0003-4165-7052
person.identifier.orcid0000-0003-1015-8760
person.identifier.ridB-7217-2013
person.identifier.ridF-1012-2015
person.identifier.ridI-4053-2012
person.identifier.scopus-author-id55443609700
person.identifier.scopus-author-id25821697000
person.identifier.scopus-author-id35270591500
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb5fa5da4-50c3-4b88-ae20-1bc63cb485f7
relation.isAuthorOfPublication77930d39-ed34-44dc-a4a6-9bf833e5e688
relation.isAuthorOfPublication13115332-43f7-4048-a8a5-2f2b855a8c92
relation.isAuthorOfPublication.latestForDiscoveryb5fa5da4-50c3-4b88-ae20-1bc63cb485f7

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