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Volatile profile of Portuguese monofloral honeys: significance in botanical origin determination

2021-08-17Journal article Open access
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dc.contributor.authorMachado, Alexandra M.
dc.contributor.authorAntunes, Marília
dc.contributor.authorMiguel, Maria Graça
dc.contributor.authorVilas-Boas, Miguel
dc.contributor.authorFigueiredo, Ana Cristina
dc.date.accessioned2021-08-31T13:33:06Z
dc.date.available2021-08-31T13:33:06Z
dc.date.issued2021-08-17
dc.date.updated2021-08-26T13:27:52Z
dc.description.abstractThe volatile profiles of 51 samples from 12 monofloral-labelled Portuguese honey types were assessed. Honeys of bell heather, carob tree, chestnut, eucalyptus, incense, lavender, orange, rape, raspberry, rosemary, sunflower and strawberry tree were collected from several regions from mainland Portugal and from the Azores Islands. When available, the corresponding flower volatiles were comparatively evaluated. Honey volatiles were isolated using two different extraction methods, solid-phase microextraction (SPME) and hydrodistillation (HD), with HD proving to be more effective in the number of volatiles extracted. Agglomerative cluster analysis of honey HD volatiles evidenced two main clusters, one of which had nine sub-clusters. Components grouped by biosynthetic pathway defined alkanes and fatty acids as dominant, namely <i>n</i>-nonadecane, <i>n</i>-heneicosane, <i>n</i>-tricosane and <i>n</i>-pentacosane and palmitic, linoleic and oleic acids. Oxygen-containing monoterpenes, such as <i>cis</i>- and <i>trans</i>-linalool oxide (furanoid), hotrienol and the apocarotenoid α-isophorone, were also present in lower amounts. Aromatic amino acid derivatives were also identified, namely benzene acetaldehyde and 3,4,5-trimethylphenol. Fully grown classification tree analysis allowed the identification of the most relevant volatiles for discriminating the different honey types. Twelve volatile compounds were enough to fully discriminate eleven honey types (92%) according to the botanical origin.pt_PT
dc.description.sponsorshipPT2020 PACompete 2020
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMolecules 26 (16): 4970 (2021)pt_PT
dc.identifier.doi10.3390/molecules26164970pt_PT
dc.identifier.doi10.3390/molecules26164970
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10400.1/16913
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationVolatile chemical characterization and biological activity assessment of Portuguese honey types – importance of botanical origin
dc.relationCentre for Environmental and Marine Studies
dc.relationCentre for Environmental and Marine Studies
dc.relationMountain Research Center
dc.relationCentre of Statistics and its Applications
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPortuguese honeyspt_PT
dc.subjectVolatile profilept_PT
dc.subjectHoney type discriminationpt_PT
dc.subjectBotanical origin determinationpt_PT
dc.titleVolatile profile of Portuguese monofloral honeys: significance in botanical origin determinationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleVolatile chemical characterization and biological activity assessment of Portuguese honey types – importance of botanical origin
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleMountain Research Center
oaire.awardTitleCentre of Statistics and its Applications
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F117013%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50017%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50017%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT
oaire.citation.issue16pt_PT
oaire.citation.startPage4970pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume26pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
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person.familyNameMiguel
person.givenNameMaria
person.identifier.orcid0000-0002-1601-5501
person.identifier.scopus-author-id9941792100
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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