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Volatile biomarkers for wild mushrooms species discrimination

dc.contributor.authorMalheiro, Ricardo
dc.contributor.authorPinho, Paula Guedes de
dc.contributor.authorSoares, Sandra
dc.contributor.authorFerreira, António César Silva
dc.contributor.authorBaptista, Paula
dc.date.accessioned2014-05-08T11:03:38Z
dc.date.available2014-05-08T11:03:38Z
dc.date.issued2013
dc.description.abstractSecondary metabolites present in the volatile fraction of six wild mushroom species (Clitocybe odora, Clitocybe fragrans, Hebeloma crustuliniforme, Lepista nuda, Tricholoma fracticum and Tricholoma terreum) were studied, as an attempt to identify compounds capable to distinguish mushroom species for taxonomic and authentication purposes. Volatiles were assessed by headspace solid phase microextraction (HS-SPME) and by gas chromatography/ion-trap mass-spectrometry (GC/IT-MS). By using target analysis, 46 volatiles were grouped in 5 chemical classes: alcohols, aldehydes, ketones, sesquiterpene-like compounds and terpenes. Each species revealed a unique volatile profile, with changes in the dominant chemical class. Aliphatic compounds with eight carbon atoms, such as 3-octanol, 1-octanol and 3-octanone were the most abundant. The non-target approach application, using all HS-SPME-GC-MS data (raw chromatograms) aims to detect a large number of compounds to get a fingerprint of each sample. This procedure, involving previous data treatments as chromatogram data alignments, sample data fingerprints, and multivariate analysis, represents a powerful tool to execute an initial screening of the analytical results, enabling a faster interpretability of the results without time-consuming through identifications and quantifications. Unsupervised signal decomposition techniques such as principal component analysis (PCA) applied both to targeted and non-targeted approaches revealed 11 volatile compounds (3-octanol, 3-octanone, linalool, 1-octanol, 1-pentanol, (E)-2-octen-1-ol, hexanol, hexanal, (E)-2-octenal, rho-anisaldehyde and sesquiterpene-like compound) in common with an important discriminating power, suggesting that those compounds can play a crucial biomarker role in the characterization of the six wild species of mushrooms.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMALHEIRO, Ricardo ...[et al.] - Volatile biomarkers for wild mushrooms species discrimination. Food Research International. ISSN 0963-9969. Vol. 54 (2013), p. 186–194por
dc.identifier.doi10.1016/j.foodres.2013.06.010
dc.identifier.eissn1873-7145
dc.identifier.issn0963-9969
dc.identifier.urihttp://hdl.handle.net/10400.14/14293
dc.identifier.wosWOS:000329377700023
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectWild mushroomspor
dc.subjectHS–SPME GC/IT–MSpor
dc.subjectVolatilespor
dc.subjectSpecies discriminationpor
dc.subjectTargeted and non-targeted analysespor
dc.subjectPrincipal component analysispor
dc.titleVolatile biomarkers for wild mushrooms species discriminationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage194
oaire.citation.issue1
oaire.citation.startPage186
oaire.citation.volume54
person.familyNameMalheiro
person.familyNameGuedes de Pinho
person.familyNameSilva Ferreira
person.familyNameBaptista
person.givenNameRicardo
person.givenNamePaula
person.givenNameAntonio Cesar
person.givenNamePaula
person.identifier392870
person.identifier.ciencia-id2510-1418-EF48
person.identifier.ciencia-id931A-48DA-23A8
person.identifier.ciencia-id7D11-FE1E-CD0F
person.identifier.orcid0000-0002-7342-0511
person.identifier.orcid0000-0002-7395-5700
person.identifier.orcid0000-0002-1188-1021
person.identifier.orcid0000-0001-6331-3731
person.identifier.scopus-author-id25650218300
person.identifier.scopus-author-id6504448214
person.identifier.scopus-author-id14051688000
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication2cc18b3d-41df-413f-b0e1-1e317c068072
relation.isAuthorOfPublication0bde318f-79f7-4130-8600-e553f3384cc6
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relation.isAuthorOfPublicationf4a84d40-379c-4d03-932f-6c46c872fd49
relation.isAuthorOfPublication.latestForDiscovery0bde318f-79f7-4130-8600-e553f3384cc6

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