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A comparative study of tocopherols composition and antioxidant properties of in vivo and in vitro ectomycorrhizal fungi

2011Journal article Open access
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dc.contributor.authorReis, Filipa S.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.contributor.authorMartins, Anabela
dc.date.accessioned2011-04-01T10:49:20Z
dc.date.available2011-04-01T10:49:20Z
dc.date.issued2011
dc.description.abstractIn aerobic organisms, the free radicals are constantly being produced during the normal cellular metabolism. The antioxidant properties of many organisms and particularly of wild mushrooms with their content in antioxidant compounds such as tocopherols, can detoxify potentially damaging forms of activated oxygen. Herein, a comparative study of tocopherols composition and antioxidant properties of in vivo (fruiting bodies) and in vitro (mycelia) ectomycorrhizal fungi: Paxillus involutus and Pisolithus arhizus. Tocopherols were determined by high performance liquid chromatography (HPLC) coupled to a fluorescence detector. The antioxidant properties were studied in terms of DPPH radical-scavenging activity, reducing power and inhibition of β-carotene bleaching. Fruiting bodies revealed the highest antioxidant properties, including scavenging effects on free radicals (EC50 = 0.61 and 0.56 mg/ml) and inhibition of lipid peroxidation capacity (EC50 = 0.40 and 0.24 mg/ml for Paxillus involutus and Pisolithus arhizus, respectively), than mycelia produced in vitro cultures. Nevertheless, mycelia revealed higher levels of total tocopherols than fruiting bodies, and particularly Pisolithus arhizus mycelium proved to be a powerful source of γ-tocopherol (154.39 μg/g dry weight).por
dc.identifier.citationReis, Filipa S.; Ferreira, Isabel C.F.R.; Barros, Lillian; Martins, Anabela (2011). A comparative study of tocopherols composition and antioxidant properties of in vivo and in vitro ectomycorrhizal fungi. LWT - Food Science and Technology. ISSN 0023-6438. 44:4, p. 820-824por
dc.identifier.doi10.1016/j.lwt.2010.11.033
dc.identifier.issn0023-6438
dc.identifier.urihttp://hdl.handle.net/10198/3880
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationPortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
dc.subjectPaxillus involutuspor
dc.subjectPisolithus arhizuspor
dc.subjectFruiting bodies/myceliapor
dc.subjectTocopherolspor
dc.subjectHPLC-fluorescencepor
dc.subjectAntioxidant activitypor
dc.titleA comparative study of tocopherols composition and antioxidant properties of in vivo and in vitro ectomycorrhizal fungipor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePortuguese Wild Mushrooms: Chemical characterization and functional study of antiproliferative and proapoptotic properties in cancer cell lines
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAGR-ALI%2F110062%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F44609%2F2008/PT
oaire.citation.endPage824por
oaire.citation.startPage820por
oaire.citation.titleLWT- Food Science and Technologypor
oaire.fundingStream5876-PPCDTI
oaire.fundingStreamSFRH
person.familyNameReis
person.familyNameFerreira
person.familyNameBarros
person.familyNameMartins
person.givenNameFilipa S.
person.givenNameIsabel C.F.R.
person.givenNameLillian
person.givenNameAnabela
person.identifier144781
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person.identifier.orcid0000-0002-9159-0530
person.identifier.orcid0000-0003-4910-4882
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-6218-4413
person.identifier.ridI-2093-2013
person.identifier.ridE-8500-2013
person.identifier.ridJ-3600-2013
person.identifier.ridG-5488-2013
person.identifier.scopus-author-id36982144400
person.identifier.scopus-author-id36868826600
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id7203013518
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
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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