Antioxidant activity of Dianthus chinensis L. flowers processed by ionizing radiation

Koike, Amanda; Barros, Lillian; Antonio, Amilcar L.; Ferreira, Isabel C.F.R.; Villavicencio, Anna L.C.H.

Publication

Antioxidant activity of Dianthus chinensis L. flowers processed by ionizing radiation

2017Conference paper

dc.contributor.author	Koike, Amanda
dc.contributor.author	Barros, Lillian
dc.contributor.author	Antonio, Amilcar L.
dc.contributor.author	Ferreira, Isabel C.F.R.
dc.contributor.author	Villavicencio, Anna L.C.H.
dc.date.accessioned	2018-09-24T14:29:47Z
dc.date.available	2018-09-24T14:29:47Z
dc.date.issued	2017
dc.description.abstract	Edible flowers are increasingly used in culinary preparations, which require new approaches to improve their conservation and safety. Irradiation treatment is safe and an effective alternative for food conservation, guaranteeing food quality, increasing shelf-life and disinfestation. This technology offers a versatile way to get good quality food while reducing post-harvest losses. Dianthus chinensis L. flowers, popularly known as Chinese pink, are widely used in culinary preparations, being also acknowledged for their bioactive components and antioxidant properties. The purpose of this study was to evaluate the antioxidant activity of D. chinensis flowers submitted to electron beam and gamma irradiation at 0, 0.5, 0.8 and 1 kGy. The antioxidant properties were evaluated through the 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity, reducing power and β-carotene bleaching inhibition assays. Total phenolics were determined by the Folin-Ciocalteu assay. The antioxidant activity was higher for irradiated samples, especially those treated with 0.5 and 0.8 kGy, independently of the radiation source, which showed the highest capacity to inhibit β-carotene bleaching inhibition. Accordingly, the applied irradiation treatments seemed to represent feasible technology to preserve the quality of edible flower petals, being able to improve the antioxidant activity	pt_PT
dc.description.sponsorship	The authors are grateful to CNEN, CAPES, CNPq and IPEN-CNEN/SP for financial support. The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013). This research is included in a Bilateral action CNPq -FCT, Brazil/Portugal 2014.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Koike, Amanda; Barros, Lillian; Antonio, Amilcar L.; Ferreira, Isabel C.F.R.; Villavicencio, Anna L.C.H. (2017). Antioxidant activity of Dianthus chinensis L. flowers processed by ionizing radiation. In International Nuclear Atlantic Conference - INAC 2017. Belo Horizonte. p. 1-8. ISBN 978-85-99141-07-6	pt_PT
dc.identifier.isbn	978-85-99141-07-6
dc.identifier.uri	http://hdl.handle.net/10198/17972
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Associação Brasileira de Energia Nuclear - ABEN	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Ionizing radiation	pt_PT
dc.subject	Edible flowers	pt_PT
dc.subject	Dianthus chinensis L.	pt_PT
dc.subject	Antioxidant activity	pt_PT
dc.title	Antioxidant activity of Dianthus chinensis L. flowers processed by ionizing radiation	pt_PT
dc.type	conference paper
dspace.entity.type	Publication
oaire.awardURI	info:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT
oaire.citation.conferencePlace	Belo Horizonte, MG, Brasil	pt_PT
oaire.citation.endPage	8	pt_PT
oaire.citation.startPage	1	pt_PT
oaire.citation.title	International Nuclear Atlantic Conference - INAC 2017	pt_PT
oaire.fundingStream	5876
person.familyName	Barros
person.familyName	Antonio
person.familyName	Ferreira
person.givenName	Lillian
person.givenName	Amilcar L.
person.givenName	Isabel C.F.R.
person.identifier	469085
person.identifier	144781
person.identifier.ciencia-id	9616-35CB-D001
person.identifier.ciencia-id	1014-5259-DE86
person.identifier.ciencia-id	9418-CF95-9919
person.identifier.orcid	0000-0002-9050-5189
person.identifier.orcid	0000-0001-8271-9964
person.identifier.orcid	0000-0003-4910-4882
person.identifier.rid	J-3600-2013
person.identifier.rid	J-1960-2014
person.identifier.rid	E-8500-2013
person.identifier.scopus-author-id	35236343600
person.identifier.scopus-author-id	44560921900
person.identifier.scopus-author-id	36868826600
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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