Repository logo
 
Publication

Effect of gamma radiation on mycotoxins solutions

2013Conference object Open access
Simple item page
dc.contributor.authorCalado, Thalita
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorRodrigues, Paula
dc.contributor.authorCabo Verde, Sandra
dc.contributor.authorVenâncio, Armando
dc.date.accessioned2014-05-08T09:44:35Z
dc.date.available2014-05-08T09:44:35Z
dc.date.issued2013
dc.description.abstractDue to the high toxicity of mycotoxins, many methods have been used to reduce or eliminate them from food and feed. Gamma radiation is one technique that has been investigated with some promising results in degradation of some mycotoxins from food. The aim of this study was to clarify the effect of gamma irradiation on aflatoxin B1 (AFB1) aflatoxin B2 (AFB2), aflatoxin G1 (AFG1) and aflatoxin G2 (AFG2), ochatoxin A (OTA) and zearelone (ZEA). The effect of the presence of moisture during the irradiation process was evaluated. Solutions with the same initial mycotoxin concentration were submitted to gamma radiation doses ranging from 0 to 10.0 kGy, at distinct moisture level – dehydrated, in water, and in methanol:water solution. Mycotoxins levels were determined by high-performance liquid chromatography with fluorescence detection (HPLC-FL), and photochemical post-column derivatization (for aflatoxins). The results showed degradation of mycotoxins with doses above 3.0 kGy, but only when irradiated in aqueous environment. With dehydrated samples, no significant reduction was observed. The results showed that gamma radiation was effective in reducing the mycotoxins concentration, but the presence of water (mainly due to the formation of hydroxyl radicals) had a very significant effect. Acknowledgement: authors acknowledge the financial support of project ChestNutsRad, Programa Operacional do Norte (AdI, Portugal), contract number 13198. Thalita Calado and Luís Abrunhosa received support through grant SFRH/BD/79364/2011 and SFRH/BPD/43922/2008, respectively, from the Fundação para a Ciência e Tecnologia - FCT, Portugal.por
dc.identifier.citationCalado, Thalita; Antonio, Amilcar L.; Rodrigues, Paula; Cabo Verde, Sandra; Venâncio, Armando (2013). Effect of gamma radiation on mycotoxins solutions. In ISM MycoRed International Conference. Apulia, Itáliapor
dc.identifier.urihttp://hdl.handle.net/10198/9469
dc.language.isoengpor
dc.peerreviewedyespor
dc.relationDESCONTAMINAÇAO BIOLÓGICA DE OCRATOXINA A UTILIZANDO UM ENZIMA DE A. NIGER
dc.subjectGamma radiationpor
dc.subjectMycotoxinspor
dc.titleEffect of gamma radiation on mycotoxins solutionspor
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleDESCONTAMINAÇAO BIOLÓGICA DE OCRATOXINA A UTILIZANDO UM ENZIMA DE A. NIGER
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F79364%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F43922%2F2008/PT
oaire.citation.conferencePlace27 - 31 Maio 2013, Martina Franca, Apulia, Itáliapor
oaire.citation.endPage265por
oaire.citation.startPage265por
oaire.citation.titleISM MycoRed International Conferencepor
oaire.fundingStreamSFRH
person.familyNameAntonio
person.familyNameRodrigues
person.givenNameAmilcar L.
person.givenNamePaula
person.identifier.ciencia-id1014-5259-DE86
person.identifier.ciencia-id2312-18AE-DA42
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0002-3789-2730
person.identifier.ridJ-1960-2014
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id7102639646
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.typeconferenceObjectpor
relation.isAuthorOfPublication4b23e496-8d11-4ff5-a8ec-e1c2235e5a28
relation.isAuthorOfPublicationb864b8c1-d66a-419c-b1ac-e6193f93eca6
relation.isAuthorOfPublication.latestForDiscovery4b23e496-8d11-4ff5-a8ec-e1c2235e5a28
relation.isProjectOfPublication9087d93e-3eae-46f6-b1f6-e0b49bd1d342
relation.isProjectOfPublication35cb7a49-a21a-4888-80d7-2440961d1815
relation.isProjectOfPublication.latestForDiscovery9087d93e-3eae-46f6-b1f6-e0b49bd1d342

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Italia_Poster_ThalitaCalado et al_2013.pdf.pdf
Size:
429.57 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.73 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIMO - Resumos em Proceedings Não Indexados à WoS/Scopus