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Gamma irradiation as an alternative to preserve the chemical and bioactive characteristics of plants widely consumed as infusions

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dc.contributor.authorPereira, Eliana
dc.contributor.authorAntonio, Amilcar L.
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorBarros, Lillian
dc.contributor.authorBento, Albino
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2015-11-16T15:50:05Z
dc.date.available2015-11-16T15:50:05Z
dc.date.issued2015
dc.description.abstractIntroduction Some of the plants included in our diet require effective conservation technologies to ensure their use in the best conditions. Irradiation may allow the decontamination of plants, maintaining their chemical, organoleptic, nutritional and bioactive properties [1,2]. Objectives In this study, the effects of gamma irradiation (1 and 10 kGy) in chemical, nutritional and antioxidant properties of Aloysia citrodora, Melissa officinalis, Melittis melissophyllum and Mentha piperita, were evaluated. Material and Methods The nutritional value was determined by official methodologies for food analyses; free sugars were analysed by HPLC-RI, fatty acids by GC-FID, organic acids by UFLC-PDA and tocopherols by HPLC-fluorescence. Antioxidant properties of methanolic extracts and infusions were evaluated by the free radical scavenging activity, reducing power and inhibition of lipid peroxidation. Results Despite some variations observed in the nutritional value, it was not possible to identify evident tendencies with the exception of proteins, which increased in all the samples irradiated with 10 kGy. However, in general, when analysed in an integrated approach non-irradiated sample (control) and irradiated ones were grouped indiscriminately indicating that the irradiation treatment caused no sufficient changes for defining a specific chemical profile. Conclusions Thus, it can be concluded that gamma irradiation (up to 10 kGy) is a viable technology for studied Lamiaceae and Verbanaceae species. This is advantageous since the dose of 10 kGy guarantees disinfection and decontamination of specimens.pt_PT
dc.identifier.citationPereira, Eliana; Antonio, Amilcar L.; Barreira, João C.M.; Barros, Lilian; Bento, Albino; Ferreira, Isabel C.F.R. (2015). Gamma irradiation as an alternative to preserve the chemical and bioactive characteristics of plants widely consumed as infusions. In EuroFoodChem XVIII International Conference 2015. Madridpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/12337
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationPRODER 53514 - AROMAPpt_PT
dc.relationApplication of Ionizing Radiation for a Sustainable Environment
dc.relationBIOACTIVE PROPERTIES & CYTOPROTECTIVE POTENTIAL OF NATURAL EXTRACTS/INDIVIDUAL COMPOUNDS: APPLICATION OF SINGLE CELL GEL ELECTROPHORESIS AND OTHER BIOCHEMICAL, CHEMICAL AND ELECTROCHEMICAL ASSAYS
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleGamma irradiation as an alternative to preserve the chemical and bioactive characteristics of plants widely consumed as infusionspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleApplication of Ionizing Radiation for a Sustainable Environment
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/PEst-OE%2FAGR%2FUI0690%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/RECI%2FAAG-TEC%2F0400%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.titleEuroFoodChem XVIII International Conference 2015pt_PT
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
person.familyNamePereira
person.familyNameAntonio
person.familyNameBarreira
person.familyNameBarros
person.familyNameBento
person.familyNameFerreira
person.givenNameEliana
person.givenNameAmilcar L.
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameAlbino
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
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person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5215-785X
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridQ-8017-2018
person.identifier.ridJ-1960-2014
person.identifier.ridD-8269-2013
person.identifier.ridJ-3600-2013
person.identifier.ridN-9706-2016
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person.identifier.scopus-author-id55938912300
person.identifier.scopus-author-id44560921900
person.identifier.scopus-author-id54895546900
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id35247694000
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.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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