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Microwave-assisted extraction in goji berries: effect on composition and bioactivity, evaluated through conventional and nonconventional methodologies

2016Journal article Restricted access
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dc.contributor.authorCarvalho, Ana P.
dc.contributor.authorMendes, Marta
dc.contributor.authorMoreira, Manuela M.
dc.contributor.authorCruz, Diana
dc.contributor.authorMagalhães, Júlia M. C. S.
dc.contributor.authorBarroso, M. Fátima
dc.contributor.authorRamalhosa, M. J.
dc.contributor.authorDuarte, Abel
dc.contributor.authorGuido, Luís
dc.contributor.authorGomes, Ana M. P.
dc.contributor.authorMatos, Cristina Delerue
dc.date.accessioned2017-10-13T07:53:28Z
dc.date.available2017-10-13T07:53:28Z
dc.date.issued2016
dc.description.abstractThis study aimed to evaluate the effect of microwave-assisted extraction (MAE) parameters on the composition and bioactivity of goji (Lycium barbarum) extracts. Extracts were obtained under a central composite design combination of experimental conditions, and characterised through HPLC-DAD; their bioactive capacity was ascertained for antimicrobial and antioxidant capacity, the later by spectrophotometric [2,2-azinobis (3- ethylbenzothiazoline-6-sulfonic acid) diammonium salt-radical scavenging activity assay – 413–748 mg ascorbic acid equivalents/100 g DW and oxygen radical absorbance capacity – 1901–2292 mg trolox equivalents/ 100 g DW] and electrochemical (DNA-based sensor – 3571–6602 mg ascorbic acid/100 g DW) methods. The quantitative profile of phenolic compounds was strongly dependent on MAE conditions. Significant correlations were found between the presence of several flavonoids and solvent composition, as well as between phenolic acids with methoxy group and the response to DNA-based sensor. Results may improve targeted extractions for specific compounds, leading to the achievement of extracts richer in antioxidant capacity, as well as in the tailoring of the biosensor response sensitivity to the composition of the extracts under analysis.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCARVALHO, Ana P.; MENDES, Marta; MOREIRA, Manuela M.M; CRUZ, Diana; MAGALHÃES, Júlia M. C. S.; BARROSO, M. Fátima; RAMALHOSA, M. J.; DUARTE, Abel; GUIDO, Luís; GOMES, Ana M. P.; MATOS, Cristina Delerue - Microwave-assisted extraction in goji berries: Effect on composition and bioactivity, evaluated through conventional and nonconventional methodologies. International Journal of Food Science and Technology. ISSN 1365-2621. Vol. 51, n.º 6 (2016), p. 1401-1408pt_PT
dc.identifier.doi10.1111/ijfs.13105pt_PT
dc.identifier.eid84979492887
dc.identifier.urihttp://hdl.handle.net/10400.14/23065
dc.identifier.wos000379025400011
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley
dc.relationNORTE-07-0124-FEDER-000069pt_PT
dc.relationVALORIZAÇÃO DE RESÍDUOS DA INDÚSTRIA FRUTÍCOLA
dc.subjectBioactive compoundspt_PT
dc.subjectBiosensorpt_PT
dc.subjectElectrochemical methodspt_PT
dc.subjectHPLC-DADpt_PT
dc.subjectLycium barbarumpt_PT
dc.subjectMicrowave-assisted extractionpt_PT
dc.subjectSpectrophotometric methodspt_PT
dc.titleMicrowave-assisted extraction in goji berries: effect on composition and bioactivity, evaluated through conventional and nonconventional methodologiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleVALORIZAÇÃO DE RESÍDUOS DA INDÚSTRIA FRUTÍCOLA
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F78845%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F97049%2F2013/PT
oaire.citation.endPage1408
oaire.citation.issue6
oaire.citation.startPage1401
oaire.citation.titleInternational Journal of Food Science and Technologypt_PT
oaire.citation.volume51
oaire.fundingStreamSFRH
person.familyNameCarvalho
person.familyNameMendes
person.familyNameMoreira
person.familyNameMagalhães
person.familyNameBarroso
person.familyNameRamalhosa
person.familyNameDuarte
person.familyNameGuido
person.familyNameGomes
person.familyNameDelerue-Matos
person.givenNameAna
person.givenNameMarta
person.givenNameManuela M.
person.givenNameJúlia Maria Coelho dos Santos
person.givenNameM. Fátima
person.givenNameMaria João
person.givenNameAbel J.
person.givenNameLuis
person.givenNameAna Maria
person.givenNameCristina
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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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