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Effect of the Extraction Technique and Operational Conditions on the Recovery of Bioactive Compounds from Chestnut (Castanea sativa) Bur and Shell

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dc.contributor.authorFernández-Agulló, Adela
dc.contributor.authorFreire, M. Sonia
dc.contributor.authorAntorrena, Gervasio
dc.contributor.authorPereira, J.A.
dc.contributor.authorGonzález-Álvarez, Julia
dc.date.accessioned2016-11-30T15:35:12Z
dc.date.available2016-11-30T15:35:12Z
dc.date.issued2014
dc.description.abstractThe aim of this work was to study the extraction of phenolic compounds from chestnut bur and shell, both waste products of chestnut processing in the food industry. Two extraction techniques were compared—maceration with solvents and microwaveassisted extraction. The influence of the solvent used (water, 50% MeOH or 50% EtOH) and temperature (25-50-75 C) on extraction yield and extract total phenols content and FRAP, DPPH, and ABTS antioxidant activities was studied. In the conventional extraction, the yield was significantly higher for the bur (8.54–19.58%) than for the shell (2.91–13.27%); however, the shell extracts showed substantially greater properties. The best extract properties were achieved at 75 C using 50% MeOH for the bur and water for the shell and phenolic compounds with demonstrated antioxidant properties, as gallic acid esters of glucose and ellagic acid, were identified in these extracts by RP-HPLC-ESI-TOF. In addition, the aqueous extracts showed ability to inhibit the growth of gram positive and negative bacteria but not fungi. The kinetic of the extraction process was well fitted by the Peleg’s model. The non-conventional microwaveassisted extraction slightly improved the chestnut bur extraction by reducing the extraction time.pt_PT
dc.description.sponsorshipThis work was funded by Ministerio de Ciencia e Innovación, FEDER Funds and Plan E Fundy (CTQ2009-07539) and Fundação para a Ciência e Tecnologia (Portugal) PEst-OE/AGR/UI0690/2011. The authors are also grateful to ‘‘Fundación Segundo Gil Dávila’’ for a research grant awarded to Adela Fernández Agullópt_PT
dc.identifier.citationFernández-Agulló, Adela; Freire, M. Sonia; Antorrena, Gervasio; Pereira, J.A.; González-Álvarez, Julia (2014). Effect of the extraction technique and operational conditions on the recovery of bioactive compounds from chestnut (Castanea sativa) bur and Shell. Separation and Purification Technology. ISSN 1383-5866. 49:2, p. 267-277pt_PT
dc.identifier.doi10.1080/01496395.2013.838264pt_PT
dc.identifier.issn1383-5866
dc.identifier.urihttp://hdl.handle.net/10198/13568
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relationStrategic Project - UI 690 - 2011-2012
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAntioxidant activitypt_PT
dc.subjectChestnut burpt_PT
dc.subjectChestnut shellpt_PT
dc.subjectConventional extractionpt_PT
dc.subjectMicrowave-assisted extractionpt_PT
dc.subjectTotal phenols contentpt_PT
dc.titleEffect of the Extraction Technique and Operational Conditions on the Recovery of Bioactive Compounds from Chestnut (Castanea sativa) Bur and Shellpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 690 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT
oaire.citation.endPage277pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage267pt_PT
oaire.citation.titleSeparation Science and Technologypt_PT
oaire.citation.volume49pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePereira
person.givenNameJosé Alberto
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id57204366348
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery7932162e-a2da-4913-b00d-17babbe51857
relation.isProjectOfPublicationc59f09d4-9931-4f2e-babb-ef8bed998be7
relation.isProjectOfPublication.latestForDiscoveryc59f09d4-9931-4f2e-babb-ef8bed998be7

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