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Ergosterol contents in mycorrhizal wild edible mushrooms: comparison by hierarchical cluster analysis

2013Conference object Open access
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dc.contributor.authorBarreira, João C.M.
dc.contributor.authorMartins, Anabela
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2013-09-18T10:15:37Z
dc.date.available2013-09-18T10:15:37Z
dc.date.issued2013
dc.description.abstractSterols are important molecules of the unsaponifiable fraction in several matrices. In mushrooms, ergosterol, which is an important vitamin D2 precursor, is clearly the main sterol. Hierarchical cluster analysis (HCA) is an unsupervised learning method to standardized data, checking for similarities between sample groups. This method calculates the distances (or correlation) between all samples using a defined metric such as squared Euclidean distance or Chebychev distance. Hierarchical clustering is the most common approach in which clusters are formed sequentially. The most similar objects are first grouped, and these initial groups are merged according to their similarities. Eventually as the similarity decreases all subgroups are fused into a single cluster. Herein, ergosterol was quantified by high performance liquid chromatography, coupled with an ultraviolet detector, in some of the most appreciated mycorrhizal edible mushrooms (Amanita caesarea, Boletus edulis, Cantharellus cibarius, Lactarius deliciosus and Morchella esculenta). Considering fat content (percentage) and ergosterol contents in mg/g fat and mg/100 g of dry weight, two main groups were formed in the HCA: one aggregating A. caesarea and B. edulis and another constituted by C. cibarius, L. deliciosus and M. esculenta. These two groups derived from the higher contents presented by B. edulis and A. caesarea. The detected values indicate that mushrooms might act as a potential source of this vitamin D2 precursor, with special relevance for diets deprived of food products of animal origin.por
dc.description.sponsorshipFoundation for Science and Technology (FCT, Portugal) and COMPETE/QREN/EU for the financial support of this work (research project PTDC/AGR-ALI/110062/2009) and to CIMO (strategic project PEst- OE/AGR/UI0690/2011). J.C.M. Barreira also thanks to FCT, POPH-QREN and FSE for his grant SFRH/BPD/72802/2010.por
dc.identifier.citationBarreira, João C.M.; Martins, Anabela; Ferreira, Isabel C.F.R. (2013). Ergosterol contents in mycorrhizal wild edible mushrooms: comparison by hierarchical cluster analysis. In The 7th International Workshop on Edible Mycorrhizal Mushrooms. Guatemalapor
dc.identifier.urihttp://hdl.handle.net/10198/8785
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationPortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
dc.relationStrategic Project - UI 690 - 2011-2012
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.subjectMushroomspor
dc.subjectErgosterolpor
dc.subjectHPLC-UVpor
dc.subjectHierarchical cluster analysispor
dc.titleErgosterol contents in mycorrhizal wild edible mushrooms: comparison by hierarchical cluster analysispor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitlePortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardTitleBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-ALI%2F110062%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.conferencePlaceGuatemalapor
oaire.citation.titleThe 7th International Workshop on Edible Mycorrhizal Mushrooms. July 30th - August 3rd, 2013por
oaire.fundingStream5876-PPCDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBarreira
person.familyNameMartins
person.familyNameFerreira
person.givenNameJoão C.M.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id7B18-A810-6B93
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0003-1233-0990
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridD-8269-2013
person.identifier.ridG-5488-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54895546900
person.identifier.scopus-author-id7203013518
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
rcaap.rightsopenAccesspor
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