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Effects of gamma irradiation in the antimicrobial activity of wild mushroom extracts

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dc.contributor.authorFernandes, Ângela
dc.contributor.authorAlves, Maria José
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorMartins, Anabela
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2015-06-26T09:10:35Z
dc.date.available2015-06-26T09:10:35Z
dc.date.issued2015
dc.description.abstractThe interest of mushrooms hás been increasing over time due to their potential in prevention or treatment of different diseases. Mushrooms have been reported for their anticancer, antiinflammatory, and immunosuppressive and antimicrobial properties. In particular, several authors reported the antibacterial activity of extracts prepared from different mushroom species [1]. In spite of these undeniable qualities, mushrooms are one of the most perishable products and tend to loose quality immediately after harvest. Irradiation is recognized as a safe and effective presen/ation method, being used worldwide to increase the shelf life of foods (e. g, fruits and vegetables, spices, grains, meat or seafood, aromatic and medicinal plants and spices) [2, 3]. In the present study, the antibacterial properties of methanolic extracts prepared from Boletus edulis Buli. and Hydnum repandum L. Fr., previously submitted to gamma irradiation, were assessed against clinicai isolates with different resistance profiles (two Gram negative bacteria; Escherichia coli and Proteus mirabilis, isolated from urine, and two Gram positive bactéria: MSSA- methicillin-sensitive Staphylococcus aureus, isolated from wound exudate and MRSA- methidllin-resistant Staphylococcus aureus, isolated from expectoration) from hospitalized patients in Local Health Unit of Mirandela, Northeast of Portugal. The fruiting bodies were collected in Trás-os-Mõntes (Northeast of Portugal) in November 2012. Gamma irradiation was performed in experimental equipment with four Co-60 sources at 1 and 2 kGy doses. The 1 kGy dose does not seem to be the preferable choice to treat B. edufe and H. repandum(which have a better response to the 2 kGy dose). Among the tested extracts, those obtained from B. ecfufe presented the highest activity against ali the tested bacterial. The antimicrobial activity of the mushroom extracts did not suffer significant changes that might compromise applying irradiation as a possible mushroom conservation technology. As a general conclusion, the 2 kGy should be considered as the best choice in terms of antimicrobial activity maintenance.por
dc.description.sponsorshipFCT (RECI/AAG-TEC/0400/2012).and COMPETE/QREN/EU - strategic projects PEst-OE/AGR/UI0690/2014 (CIMO) and PEst-C/EQB/LA0006/2014 (REQUIMTE); grants SFRH/BD/76019/2011 and SFRH/BPD/72802/2010 to A. Fernandes and J.C.M. Barreira, respectively.por
dc.identifier.citationFernandes, Ângela; Alves, Maria José; Barreira, João C.M.; Antonio, Amilcar L.; Oliveira, M. Beatriz P.P.; Martins, Anabela; Ferreira, Isabel C.F.R. (2015). Effects of gamma irradiation in the antimicrobial activity of wild mushroom extracts. In 2nd Symposium on Medicinal Chemistry. Bragapor
dc.identifier.urihttp://hdl.handle.net/10198/11908
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherUniversidade do Minhopor
dc.relationPEst-C/EQB/LA0006/2014por
dc.relationApplication of Ionizing Radiation for a Sustainable Environment
dc.relationStrategic Project - UI 690 - 2014
dc.relationCOMPREHENSIVE STUDY OF THE EFFECTS OF RAYS AND ELECTRON BEAM IN WILD MUSHROOMS: PHYSICO-CHEMICAL, NUTRITIONAL AND BIOACTIVE PARAMETERS
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.subjectFood irradiationpor
dc.subjectGammapor
dc.subjectWild mushroomspor
dc.subjectAntimicrobial activitypor
dc.titleEffects of gamma irradiation in the antimicrobial activity of wild mushroom extractspor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleApplication of Ionizing Radiation for a Sustainable Environment
oaire.awardTitleStrategic Project - UI 690 - 2014
oaire.awardTitleCOMPREHENSIVE STUDY OF THE EFFECTS OF RAYS AND ELECTRON BEAM IN WILD MUSHROOMS: PHYSICO-CHEMICAL, NUTRITIONAL AND BIOACTIVE PARAMETERS
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/3599-PPCDT/RECI%2FAAG-TEC%2F0400%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F76019%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.conferencePlaceBraga, Portugalpor
oaire.citation.title2nd Symposium on Medicinal Chemistrypor
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamFARH
person.familyNameFernandes
person.familyNameAlves
person.familyNameBarreira
person.familyNameAntonio
person.familyNameMartins
person.familyNameFerreira
person.givenNameÂngela
person.givenNameMaria José
person.givenNameJoão C.M.
person.givenNameAmilcar L.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
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person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridM-6624-2016
person.identifier.ridD-8269-2013
person.identifier.ridJ-1960-2014
person.identifier.ridG-5488-2013
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person.identifier.scopus-author-id16400584800
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person.identifier.scopus-author-id44560921900
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
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