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Electron beam irradiation as a method for preservation of the chemical composition of medicinal and aromatic plants

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dc.contributor.authorPereira, Eliana
dc.contributor.authorPereira, Carla
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.accessioned2015-11-11T10:35:51Z
dc.date.available2015-11-11T10:35:51Z
dc.date.issued2015
dc.description.abstractMedicinal and aromatic herbs are widely consumed as infüsions, being used since the eariy ancient times as medicinal plants for different diseases, displaying antioxidant, antimicrobial and anti-inflammatory properties [l]. Electron beam irradiation is used for several purposes, being highlighted not only as decontamination but also as a preservation technique [2]. In this work the effects ofdifferent doses ofelectron beam (EB) irradiation (O kGy - contrai, l kGy and 10 kGy) on chemical and nutritional compounds oï ASoysia citrodora P., Melissa officinalis L., Melitüs melissophyllum L. and Mentha piperita L. was evaluated. The nutritional value was detennined by official methodologies for food analyses, determining the content of proteins, lipids, carbohydrates and ash. Individual profiles of sugars were determined by HPLC-RI, fatty acids by GC-FID, organic acids by UFLC-PDA and tocopherols by HPLC-fluorescence. The proximate composition remained nearly unaffected, independently of plant species or irradiation dose. Regarding sugars profile, the main changes were a decrease in the disaccharides content, while an opposite behaviour was observed form the monomer units (probably originated after the lysis ofthe disaccharides). The most noticeable variations in organic acids were exhibited by the plant species with the highest contents in these molecules, particularly the decrease observed in M. officinalis and M. melissophyllum. Among tocopherols, a and P isoforms were the most susceptible to irradiation; using a l kGy dose tended to increase tocopherols' leveis m A. citrodora, while the 10 kGy dose had the same effect on M. melissophyllum. M. piperita presented higher tocopherols' leveis, independently of the dose. Finally, EB irradiated samples presented higher percentages ofmonounsaturated fatty acids than the control ones.pt_PT
dc.identifier.citationPereira, Eliana; Pereira, Carla; Antonio, Amilcar L.; Barreira, João C.M.; Barros, Lillian; Bento, Albino; Ferreira, Isabel C.F.R. (2015). Electron beam irradiation as a method for preservation of the chemical composition of medicinal and aromatic plants. In 5th MoniQA International Conference 2015. Porto. ISBN 978-3-9504109-0-7pt_PT
dc.identifier.isbn978-3-9504109-0-7
dc.identifier.urihttp://hdl.handle.net/10198/12316
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationPRODER 53514 – AROMAPpt_PT
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.titleElectron beam irradiation as a method for preservation of the chemical composition of medicinal and aromatic plantspt_PT
dc.typeconference object
dspace.entity.typePublication
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//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.title5th MoniQA International Conference 2015, Food and Helath- Risks and beneffitspt_PT
oaire.fundingStream5876
person.familyNamePereira
person.familyNamePereira
person.familyNameAntonio
person.familyNameBarreira
person.familyNameBarros
person.familyNameBento
person.familyNameFerreira
person.givenNameEliana
person.givenNameCarla
person.givenNameAmilcar L.
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameAlbino
person.givenNameIsabel C.F.R.
person.identifier1415151
person.identifier469085
person.identifier144781
person.identifier.ciencia-idBE17-462D-9A75
person.identifier.ciencia-idEF10-2739-2B70
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person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0003-2854-6745
person.identifier.orcid0000-0003-0093-771X
person.identifier.orcid0000-0001-8271-9964
person.identifier.orcid0000-0003-1233-0990
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.ridK-1629-2016
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-id55627876424
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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.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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