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Effects of gamma irradiation on physical parameters of Lactarius deliciosus wild edible mushroom

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dc.contributor.authorFernandes, Ângela
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorMartins, Anabela
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2013-02-27T15:43:25Z
dc.date.available2013-02-27T15:43:25Z
dc.date.issued2012
dc.description.abstractStudies evaluating the effects of ionizing radiation in mushrooms are mostly available in cultivated species [1], being scarce reports on wild species, considered add-value foods. In the present work, the effects of gamma radiation dose (0, 0.5 and 1 kGy; at a dose rate of 2.3 kGy/h using a gamma camera with 60Co sources) and storage time (0 to 8 days at 5 ºC) on the physical parameters (colour, cap diameter and weight) of the wild edible mushroom Lactarius deliciosus were evaluated. The results were submitted to an analysis of variance (ANOVA) with Type III sums of squares, performed using the GLM (General Linear Model) procedure of the SPSS software, and a hierarchical cluster analysis (HCA) was used as an unsupervised learning method [2]. It was observed a slight decrease in redness (a; Hunter’s colour) with irradiation dose and a slight decrease in the cap diameter with storage time. Regarding the weight loss profiles along the 8 days of storage, the results were very similar for irradiated and non-irradiated samples. Despite the particular tendencies previously described, the results obtained for the assayed parameters seemed to indicate that neither irradiation nor cold storage, exerted significant influence. The interaction among the two factors (Irradiation dose×Storage time) was only significant (p<0.05) for L (lightness) parameter. The HCA indicated high similarity among the assayed samples; nevertheless, the well defined evolution that some Hunter’s colour parameters showed with irradiation dose should not be neglected. Overall, this study demonstrated that up to 1 kGy, gamma irradiation and cold storage did not affect significantly the assayed physical properties, and can be considered an alternative storage methodology for mushrooms in dose values considered.por
dc.description.sponsorshipFCT and COMPETE/QREN/UE- strategic projects PEst-OE/AGR/UI0690/2011 (CIMO) and PEst-C/EQB/LA0006/2011 (REQUIMTE); grant SFRH/BD/76019/2011 to A. Fernandes.por
dc.identifier.citationFernandes, Ângela; Antonio, Amilcar L.; Oliveira, M. Beatriz P.P.; Martins, Anabela; Ferreira, Isabel C.F.R. (2012). Effects of gamma irradiation on physical parameters of Lactarius deliciosus wild edible mushroom. In Multiphysics2012. Lisboapor
dc.identifier.urihttp://hdl.handle.net/10198/8193
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationStrategic Project - UI 690 - 2011-2012
dc.relationStrategic Project - LA 6 - 2011-2012
dc.subjectGamma irradiationpor
dc.subjectWild mushroomspor
dc.subjectLactarius deliciosuspor
dc.subjectPhysical parameterspor
dc.titleEffects of gamma irradiation on physical parameters of Lactarius deliciosus wild edible mushroompor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardTitleStrategic Project - LA 6 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6820 - DCRRNI ID/PEst-C%2FEQB%2FLA0006%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F76019%2F2011/PT
oaire.citation.conferencePlaceLisboapor
oaire.citation.titleMultiphysics2012, 13 e 14 de Dezembropor
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6820 - DCRRNI ID
oaire.fundingStreamSFRH
person.familyNameFernandes
person.familyNameAntonio
person.familyNameMartins
person.familyNameFerreira
person.givenNameÂngela
person.givenNameAmilcar L.
person.givenNameAnabela
person.givenNameIsabel C.F.R.
person.identifier144781
person.identifier.ciencia-id2015-0434-AE7C
person.identifier.ciencia-id1014-5259-DE86
person.identifier.ciencia-id7B18-A810-6B93
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-0157-9873
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0001-6218-4413
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-1960-2014
person.identifier.ridG-5488-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id44560921900
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
rcaap.typeconferenceObjectpor
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