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Ecophysiology of Penicillium expansum and patulin production in synthetic and olive-based media

dc.contributor.authorHamdi, Mohamed
dc.contributor.authorMorais, Jorge Sá
dc.contributor.authorBejaoui, Hend
dc.contributor.authorRodrigues, Paula
dc.date.accessioned2018-02-14T12:29:21Z
dc.date.available2018-02-14T12:29:21Z
dc.date.issued2017
dc.description.abstractThe olive and its derivatives, in particular olive oil, represent one of the most significant agricultural products in the Mediterranean basin. Storage under inadequate conditions poses serious problems concerning fungal contamination, with consequent defects and potential mycotoxin production in olives and olive oils. Penicillium expansum represents one of the most significant postharvest pathogens in several fruits, including olives. Not only it causes blue mold but also is one of the most relevant patulin (PAT) producing species of the genus Penicillium. The aim of this research was to evaluate the ecophysiological conditions governing growth and PAT production by P. expansum strains previously isolated from Tunisian olives. For this purpose, four P. expansum isolates were tested in a synthetic medium (Czapek Yeast Autolysate, CYA) and in olive-based medium (OM) for their ability to grow and produce PAT under different temperatures (4 ºC, 15°ºC and 25°ºC) for 10 and 20 days. The mycotoxin was analysed by HPLC-UV. Results showed that all isolates were able to grow on tested media at different temperatures. Different PAT production profiles were found, showing that at 25 ºC P. expansum isolates were able to produce PAT on CYA and OM medium. At 15 ºC the production of PAT was only detected on CYA medium, while no PAT production was detected at 4 ºC for the two media.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHamdi, Mohamed; Morais, Jorge Sá; Bejaoui, Hend; Rodrigues, Paula (2017). Ecophysiology of Penicillium expansum and patulin production in synthetic and olive-based media. In ICFC2017 – International Congress of Food Contaminants: Climate change and food safety: challenges in the near future. Braga. ISBN 978-989-97478-9-0pt_PT
dc.identifier.isbn978-989-97478-9-0
dc.identifier.urihttp://hdl.handle.net/10198/15730
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectFood safetypt_PT
dc.subjectmycotoxinspt_PT
dc.subjectOlivespt_PT
dc.subjectPatulinpt_PT
dc.titleEcophysiology of Penicillium expansum and patulin production in synthetic and olive-based mediapt_PT
dc.typeconference poster
dspace.entity.typePublication
oaire.citation.conferencePlaceUniversidade do Minho, Braga, Portugalpt_PT
oaire.citation.titleBook of Abstracts, ICFC2017 – International Congress of Food Contaminants: Climate change and food safety: challenges in the near futurept_PT
person.familyNameMorais
person.familyNameRodrigues
person.givenNameJorge Sá
person.givenNamePaula
person.identifier.ciencia-id6E11-BDED-4CB3
person.identifier.ciencia-id2312-18AE-DA42
person.identifier.orcid0000-0002-3789-2730
person.identifier.scopus-author-id7102639646
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationc2ed0055-91c1-4bf5-acb3-d9a99296d9a2
relation.isAuthorOfPublicationb864b8c1-d66a-419c-b1ac-e6193f93eca6
relation.isAuthorOfPublication.latestForDiscoveryb864b8c1-d66a-419c-b1ac-e6193f93eca6

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