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Olive oils from fruits infected with different anthracnose pathogens show sensory defects earlier than chemical degradation

2021Artigo científico Acesso aberto
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dc.contributor.authorPeres, Fátima
dc.contributor.authorTalhinhas, Pedro
dc.contributor.authorAfonso, Hugo
dc.contributor.authorAlegre, Helena
dc.contributor.authorOliveira, Helena
dc.contributor.authorFerreira-Dias, Suzana
dc.date.accessioned2021-06-17T13:47:04Z
dc.date.available2021-06-17T13:47:04Z
dc.date.issued2021
dc.description.abstractAnthracnose is the most important disease of olives responsible for olive oil depreciation. The aim of this study is to compare the negative effects of the most common olive anthracnose pathogens in Portugal, Colletotrichum nymphaeae, C. godetiae, or C. acutatum, on oil extracted from fruits of the most cultivated Portuguese olive cultivars, ‘Galega Vulgar’ and ‘Cobrançosa’. Healthy fruits (ripening index 3.5) were inoculated, incubated, and sampled over 14 days post-inoculation (d.p.i.) for symptom assessment and oil extraction. Virgin olive oil (VOO) was characterised by quality criteria parameters (acidity, peroxide value, UV absorbances, organoleptic assessment, fatty acid ethyl esters (FAEE)), total phenols (TPH), main fatty acids, and waxes compositions. Galega Vulgar fruits were more susceptible to anthracnose than Cobrançosa fruits. Colletotrichum nymphaeae was equally highly virulent for both cultivars, while C. godetiae was less virulent especially in Cobrançosa. VOO acidity increased reached 5% in Galega oils and 2% in Cobrançosa oils from fruits infected with C. nymphaeae or C. acutatum at 14 d.p.i. FAEE were higher than the legal limit for extra VOO in Galega oils from fruits at 7 d.p.i. with C. nymphaeae or C. acutatum, or 11 d.p.i. with C. godetiae. TPH decreased through the experiments with all the inoculated fungi. The musty sensory defect was detected in Galega and Cobrançosa VOO from fruits inoculated with C. nymphaeae or C. acutatum at 3 or 7 d.p.i. earlier than chemical degradation, respectively. The degradation levels of olive oils depended on the Colletotrichum species and olive cultivarpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPeres, F.; Talhinhas, P.; Afonso, H.; Alegre, H.; Oliveira, H.; Ferreira-Dias, S. Olive Oils from Fruits Infected with Different Anthracnose Pathogens Show Sensory Defects Earlier Than Chemical Degradation. Agronomy 2021, 11, 1041pt_PT
dc.identifier.doihttps://doi.org/ 10.3390/agronomy11061041pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/21478
dc.language.isoengpt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectolive anthracnosept_PT
dc.subjectColletotrichum nymphaeaept_PT
dc.subjectColletotrichum godetiaept_PT
dc.subjectColletotrichum acutatumpt_PT
dc.subjectfatty acid ethyl esterspt_PT
dc.subjectolive oilpt_PT
dc.subjectphenolspt_PT
dc.subjectCobrançosapt_PT
dc.subjectGalega Vulgarpt_PT
dc.subjectsensory analysispt_PT
dc.titleOlive oils from fruits infected with different anthracnose pathogens show sensory defects earlier than chemical degradationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPTDC/ASP-PLA/28547/2017
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FASP-PLA%2F28547%2F2017/PT
oaire.citation.titleAgronomypt_PT
oaire.fundingStream3599-PPCDT
person.familyNameTalhinhas
person.familyNameFerreira-Dias
person.givenNamePedro
person.givenNameSuzana
person.identifier.ciencia-id5A1E-9983-ADD5
person.identifier.ciencia-idAA14-7B2F-5098
person.identifier.orcid0000-0001-6694-7502
person.identifier.orcid0000-0003-3655-8201
person.identifier.ridJ-4784-2013
person.identifier.ridE-1128-2013
person.identifier.scopus-author-id6506057702
person.identifier.scopus-author-id6603615381
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeba8a4d6-04bf-4aa6-8a7d-e0bcef764ae7
relation.isAuthorOfPublication845ce8e0-45cd-4998-9cfe-ca0e80341398
relation.isAuthorOfPublication.latestForDiscoveryeba8a4d6-04bf-4aa6-8a7d-e0bcef764ae7
relation.isProjectOfPublicationfc62723e-f7b9-4cd4-9944-1f2826d41eb9
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