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Phenolic extracts of Rubus ulmifolius Schoot flowers: characterization, microencapsulation and incorporation into yogurts as nutraceutical sources

dc.contributor.authorMartins, Ana
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorSantos-Buelga, Celestino
dc.contributor.authorFernandes, Isabel P.
dc.contributor.authorBarreiro, M.F.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2014-06-30T11:19:51Z
dc.date.available2014-06-30T11:19:51Z
dc.date.issued2014
dc.description.abstractRubus ulmifolius Schott (Rosaceae), known as wild blackberry, is a perennial shrub found in wild and cultivated habitats in Europe, Asia and North Africa. Traditionally, it is used for homemade remedies because of its medicinal properties, including antioxidant activity. In the present work, phenolic extracts of R. ulmifolius flower buds obtained by decoction and hydroalcoholic extraction were chemically and biologically characterized. Several phenolic compounds were identified in both decoction and hydroalcoholic extracts of flowers, ellagitannin derivatives being the most abundant ones, namely the sanguiin H-10 isomer and lambertianin. Additionally, comparing with the decoction form, the hydroalcoholic extract presented both higher phenolic content and antioxidant activity. The hydroalcoholic extract was thereafter microencapsulated in an alginate-based matrix and incorporated into a yogurt to achieve antioxidant benefits. In what concerns the performed incorporation tests, the obtained results pointed out that, among the tested samples, the yoghurt containing the microencapsulated extract presented a slightly higher antioxidant activity, and that both forms (free and microencapsulated extracts) gave rise to products with higher activity than the control. In conclusion, this study demonstrated the antioxidant potential of the R. ulmifolius hydroalcoholic extract and the effectiveness of the microencapsulation technique used for its preservation, thus opening new prospects for the exploitation of these natural phenolic extracts in food applicationspor
dc.identifier.citationMartins, Ana; Barros, Lillian; Carvalho, Ana Maria; Santos-Buelga, Celestino; Fernandes, Isabel P.; Barreiro, Filomena; Ferreira, Isabel C.F.R. (2014). Phenolic extracts of Rubus ulmifolius Schoot flowers: characterization, microencapsulation and incorporation into yogurts as nutraceutical sources. Food and Function. ISSN 2042-6496. 5, p. 1091-1100por
dc.identifier.doi10.1039/C3FO60721F
dc.identifier.issn2042-6496
dc.identifier.urihttp://hdl.handle.net/10198/9794
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherRoyal Society of Chemistrypor
dc.relationStrategic Project - UI 690 - 2011-2012
dc.relationStrategic Project - LA 20 - 2011-2012
dc.titlePhenolic extracts of Rubus ulmifolius Schoot flowers: characterization, microencapsulation and incorporation into yogurts as nutraceutical sourcespor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardTitleStrategic Project - LA 20 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6820 - DCRRNI ID/PEst-C%2FEQB%2FLA0020%2F2011/PT
oaire.citation.endPage1100por
oaire.citation.startPage1091por
oaire.citation.titleFood and Functionpor
oaire.citation.volume5por
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6820 - DCRRNI ID
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFernandes
person.familyNameBarreiro
person.familyNameFerreira
person.givenNameLillian
person.givenNameAna Maria
person.givenNameIsabel P.
person.givenNameFilomena
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id4D1C-441F-C7F0
person.identifier.ciencia-id3418-47D5-5746
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0002-0069-4503
person.identifier.orcid0000-0002-6844-333X
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridL-1552-2016
person.identifier.ridL-9802-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id20336503900
person.identifier.scopus-author-id26323585300
person.identifier.scopus-author-id57188719717
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.rightsopenAccesspor
rcaap.typearticlepor
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