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Response surface evaluation of microwave-assisted extraction conditions for Lycium barbarum bioactive compounds

2016Journal article Restricted access
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dc.contributor.authorMendes, Marta
dc.contributor.authorCarvalho, Ana P.
dc.contributor.authorMagalhães, Júlia M. C. S.
dc.contributor.authorMoreira, Manuela
dc.contributor.authorGuido, Luís
dc.contributor.authorGomes, Ana M. P.
dc.contributor.authorDelerue-Matos, Cristina
dc.date.accessioned2016-04-21T11:33:20Z
dc.date.available2016-04-21T11:33:20Z
dc.date.issued2016
dc.description.abstractThe effects of microwave-assisted extraction (MAE) on the qualitative and quantitative composition of extracted bioactive phytochemicals are strongly dependent on specific operational conditions. The impact of temperature, extraction time, and solvent dielectric properties on theMAE of antioxidant compounds fromgoji berry is hereby reported and discussed. Results were evaluated in terms of antioxidant capacity (ascertained by ABTS and ORAC assays), complemented with quantification of total phenolics content (TPC), and characterization of extracts through HPLC. Furthermore, the effect of storage temperature was also studied. Results revealed that temperature and solvent properties exert a significant effect on TPC and ORAC assays, whereas irradiation time plays a key role in the preparation of extracts to be evaluated through ABTS. The effect of solvent properties is tentatively explained considering the dielectric properties ofmethanol andwater,whereas the observed effect of temperature could be explained by its influence on the solubility of phenolic compounds. Industrial Relevance: A careful selection of operational conditions duringMAE, designed for a specific antioxidant assay, allows an increase in the bioactivity of the resultant extracts,which may become important in terms of industrial applications.pt_PT
dc.description.sponsorshipThis work was fi nanced by FEDER funds through CCDR-N, in the scope of project Operação NORTE-07-0124-FEDER-000069-Ciência do Alimento, and through FCT – Fundação para a Ciência e a Tecnologia, in the scope of project PEst-C/EQB/LA0006/2013. Authors Carvalho and Moreira acknowledge Project NORTE-07-0124-FEDER-000069. Au- thor Moreira also acknowledges FCT for grant (SFRH/BPD/97049/2013).pt_PT
dc.identifier.citationMENDES, Marta; CARVALHO, Ana P.; MAGALHÃES, Júlia M.C.S.; MOREIRA, Manuela; GUIDO, Luís; GOMES, Ana M. P.; DELERUE-MATOS, Cristina - Response surface evaluation of microwave-assisted extraction conditions for Lycium barbarum bioactive compounds. Innovative Food Science and Emerging Technologies. ISSN 1466-8564. Vol. 33 (2016), p. 319-326 http://dx.doi.org/10.1016/j.ifset.2015.12.025pt_PT
dc.identifier.doi10.1016/j.ifset.2015.12.025pt_PT
dc.identifier.eid84954271115
dc.identifier.urihttp://hdl.handle.net/10400.14/19885
dc.identifier.wos000372383000037
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier
dc.relationNORTE-07-0124-FEDER-000069pt_PT
dc.relationVALORIZAÇÃO DE RESÍDUOS DA INDÚSTRIA FRUTÍCOLA
dc.subjectAntioxidant capacitypt_PT
dc.subjectGoji berrypt_PT
dc.subjectMAEpt_PT
dc.subjectResponse surface methodologypt_PT
dc.subjectSolvent dielectric propertiespt_PT
dc.subjectTemperaturept_PT
dc.titleResponse surface evaluation of microwave-assisted extraction conditions for Lycium barbarum bioactive compoundspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleVALORIZAÇÃO DE RESÍDUOS DA INDÚSTRIA FRUTÍCOLA
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FEQB%2FLA0006%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F97049%2F2013/PT
oaire.citation.endPage326
oaire.citation.startPage319
oaire.citation.titleInnovative Food Science and Emerging Technologies
oaire.citation.volume33
oaire.fundingStreamCOMPETE
person.familyNameMendes
person.familyNameCarvalho
person.familyNameMagalhães
person.familyNameMoreira
person.familyNameGuido
person.familyNameGomes
person.familyNameDelerue-Matos
person.givenNameMarta
person.givenNameAna
person.givenNameJúlia Maria Coelho dos Santos
person.givenNameManuela M.
person.givenNameLuis
person.givenNameAna Maria
person.givenNameCristina
person.identifierK-5479-2013
person.identifier162073
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person.identifier.ciencia-idAB11-0D65-5D03
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person.identifier.ciencia-idD813-D64B-6420
person.identifier.ciencia-idA414-640D-9066
person.identifier.ciencia-id161F-87EC-9EC1
person.identifier.ciencia-idAA12-BFC1-B2E3
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0003-0748-2682
person.identifier.orcid0000-0001-5967-4200
person.identifier.orcid0000-0001-8436-0692
person.identifier.orcid0000-0003-1500-9211
person.identifier.orcid0000-0001-9441-7867
person.identifier.orcid0000-0001-7883-2446
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridK-5479-2013
person.identifier.ridD-5344-2013
person.identifier.ridB-9944-2013
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id36855267200
person.identifier.scopus-author-id7103289231
person.identifier.scopus-author-id7003312179
person.identifier.scopus-author-id57190668768
person.identifier.scopus-author-id6603741848
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.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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