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Analysis of phenolic compounds in Tropaeolum majus L. processed by ionizing radiation

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dc.contributor.authorKoike, Amanda
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorBarros, Lillian
dc.contributor.authorSantos-Buelga, Celestino
dc.contributor.authorVillavicencio, Anna L.C.H.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2015-10-26T11:01:04Z
dc.date.available2015-10-26T11:01:04Z
dc.date.issued2014
dc.description.abstractTropaeolum majus L. (garden nasturtium) is an ornamental plant that belongs to Tropaeolaceae family, native to South America in the Andes and that is widely distributed around the world. Its flowers are extensively used in food preparations and have strong spicy flavours as watercress, being also acknowledged for their antioxidant properties and high content of phenolic compounds [1, 2]. The use of edible flowers as food ingredients requires new approaches to improve conservation and safety. The extension of post-harvest storage, preserving the quality of the plants, will benefit the industrial development [3]. Food irradiation is a method that can be used for the extension of shelf life of perishable commodities and to increase food safety [4]. The purpose of this study was to evaluate the dose-response effects of gamma and electron beam irradiation (doses of 0, 0.5, 0.8 and 1 kGy) on the phenolic profile of garden nasturtium, using HPLC-DAD-ESI/MS. Kaempferol-O-hexoside-O-hexoside was the most abundant compound in all the studied samples (8 and 14 mg/g of extract, after gamma and electron beam irradiation, respectively), followed by 5-O-caffeoylquinic acid (2.3 mg/g for both irradiation technologies) and 3-O-caffeoylquinic acid (2.2 and 2.0 mg/g for gamma and electron beam irradiation, respectively). Regarding anthocyanins, pelargonidin-3-O-sophoroside and delphinidin-O-dihexoside were the most abundant compounds (4 and 2 μg/g, respectively, after both types of irradiation). According to the obtained results, the applied irradiation treatments seemed feasible technologies to keep the phenolic composition and preserve the quality of edible flower petals and might be useful to expand the post-harvest storage, preserving the quality of T. majus.pt_PT
dc.identifier.urihttp://hdl.handle.net/10198/12190
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationStrategic Project - UI 690 - 2011-2012
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.titleAnalysis of phenolic compounds in Tropaeolum majus L. processed by ionizing radiationpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
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/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F72802%2F2010/PT
oaire.citation.conferencePlaceSão Palopt_PT
oaire.citation.title4th INCC, 4th International Nuclear Chemistry Congresspt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBarreira
person.familyNameBarros
person.familyNameFerreira
person.givenNameJoão C.M.
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0003-1233-0990
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridD-8269-2013
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54895546900
person.identifier.scopus-author-id35236343600
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
relation.isAuthorOfPublication4629b12c-39b0-4da8-8b8d-6efba5cf2d81
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relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
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