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Ultra-high pressure-assisted extraction of phenolic compounds from watercress: characterization and process optimization

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dc.contributor.authorPinela, José
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorOliveira, Beatriz
dc.contributor.authorSaraiva, Jorge A.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-05-23T10:32:58Z
dc.date.available2018-05-23T10:32:58Z
dc.date.issued2018
dc.description.abstractUltra-high pressure (UHP), usually in the range from 100 to 800 MPa, is a novel technology increasingly used in the food industry as a cold pasteurizing method. UHP has also been reported as a good alternative to the conventional methods of extraction of high added-value compounds from plant materials, as it avoids the degradation of thermosensitive molecules and can improve the process efficiency [1-2]. Therefore, this study was carried out to characterize the phenolic profile of watercress (Nasturtium officinale R. Br., a fast-growing semiaquatic plant with medicinal properties) [3] and optimize the UHP-assisted extraction of these compounds using the response surface methodology. For this, freeze-dried watercress samples were processed according to a five-level full factorial design combining the independent variables: processing time (t, 1.5–33.5 min), pressure (P, 0.1–600 MPa) and solvent (S, 0–100% ethanol, v/v). The individual and grouped phenolic compounds (analysed by HPLC-DAD-ESI/MS) and the extraction yield were used as response variables. The chromatographic analysis revealed that the phenolic profile was constituted mainly by flavonoids, namely quercetin and isorhamnetin glycoside derivatives, whereas phenolic acids were less abundant. In addition, four kaempferol glycoside derivatives were identified for the first time in this species [5]. The developed theoretical models were successfully fitted to the experimental data and used for extraction optimization. The UHP conditions that maximized the extraction yield (crude extract) and the recovery of phenolic compounds were as follows: t= 34 min, P= 531 MPa, S= 26% and t= 3 min, P= 600 MPa, S= 100%, respectively [2]. In conclusion, the developed extraction process promoted the selective extraction of phenolic compounds from watercress using a green solvent and reduced extraction times.pt_PT
dc.description.sponsorshipTo the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013), REQUIMTE/LAQV (UID/QUI/50006/2013- POCI/01/0145/FEDER/007265) and QOPNA Research Unit (FCT/ID/QUI/00062/2013); to FCT for L. Barros research contract; to the Xunta de Galicia for financial support to M.A. Prieto; and to FEDERInterreg España-Portugal programme for financial support through the project 0377_Iberphenol_6_E.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPinela, José; Prieto, M.A.; Barros, Lillian; Carvalho, Ana Maria; Oliveira, M.B.P.P.; Saraiva, Jorge A.; Ferreira, Isabel C.F.R. (2018). Ultra-high pressure-assisted extraction of phenolic compounds from watercress: characterization and process optimization. In 6PYCheM – 6th Portuguese Young Chemists Meeting. Setúbalpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/17673
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleUltra-high pressure-assisted extraction of phenolic compounds from watercress: characterization and process optimizationpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00062%2F2013/PT
oaire.citation.conferencePlaceSetúbal, Portugalpt_PT
oaire.citation.title6PYCheM – 6th Portuguese Young Chemists Meetingpt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNamePinela
person.familyNamePrieto Lage
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameJosé
person.givenNameMiguel A.
person.givenNameLillian
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier107688
person.identifier469085
person.identifierID G-7399-2011
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person.identifier.ciencia-id771C-2B43-B108
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person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0001-7523-1637
person.identifier.orcid0000-0002-3513-0054
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5508-5935
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridB-4466-2014
person.identifier.ridG-4516-2011
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54392272800
person.identifier.scopus-author-id35937495700
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id20336503900
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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