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Subcritical water extraction of antioxidants from mountain germander (Teucrium montanum L.)

2018Journal article Open access
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dc.contributor.authorNastić, Nataša
dc.contributor.authorŠvarc-Gajić, Jaroslava
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorMorais, Simone
dc.contributor.authorBarroso, M. Fátima
dc.contributor.authorMoreira, Manuela M.
dc.date.accessioned2019-10-29T15:46:25Z
dc.date.available2019-10-29T15:46:25Z
dc.date.issued2018
dc.description.abstractIn the present work, antioxidant compounds from Teucrium montanum were extracted by subcritical water. The influence of extraction temperature and pressure on antioxidant activity of extracts has been investigated in terms of extraction yield (EY), total phenolic content (TPC), and DPPH-radical scavenging activity (DPPH-RSA) and ferric reducing antioxidant power (FRAP). Additionally, the compounds responsible for the antioxidant activity were identified and quantified by high performance liquid chromatography (HPLC). The highest EY (42.63%), TPC (174.61 ± 4.09 mg GAE/g DE) and antioxidant activity by DPPH-RSA (176.23 ± 8.76 mg TE/g DE) and FRAP (141.71 ± 5.21 mg AAE/g DE) were seen in extracts obtained at temperature of 160 °C and pressure of 10 bar. HPLC analysis revealed that naringin and gallic acid were the principle antioxidant compounds in subcritical extracts. According to the results, SWE has a great potential in exploitation of natural sources of bioactive compounds and production of pharmacologically-active fractions.pt_PT
dc.description.sponsorshipThe project 6818 – Transnational Cooperation, Agreement between Portugal (FCT) and Serbia (MSTD) is acknowledged. This work was also funded by project TR 31014 financially supported by the Serbian Ministry of Education, Science and Technological Development. Authors are also grateful for financial support from project NORTE-01-0145-FEDER-000011-311 Qualidade e Segurança Alimentar-uma abordagem (nano) tecnológica. The financial support from FCT/MEC through national funds and co-financed by FEDER, under the Partnership Agreement PT2020 through the project UID/QUI/50006/2013-POCI/01/0145/FEDER/007265, is also acknowledged. M.F. Barroso (SFRH/BPD/78845/2011) and Manuela M. Moreira (SFRH/BPD/97049/2013) are grateful to Fundação para a Ciência e Tecnologia for their postdoctoral fellowships.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.supflu.2018.04.019
dc.identifier.urihttp://hdl.handle.net/10400.22/14764
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0896844618301906?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectSubcritical water extractionpt_PT
dc.subjectAntioxidant activitypt_PT
dc.subjectPhenolic compoundspt_PT
dc.subjectHPLC-PDApt_PT
dc.subjectTeucrium montanumpt_PT
dc.titleSubcritical water extraction of antioxidants from mountain germander (Teucrium montanum L.)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.citation.endPage206pt_PT
oaire.citation.startPage200pt_PT
oaire.citation.titleJournal of Supercritical Fluidspt_PT
oaire.citation.volume138pt_PT
oaire.fundingStream5876
person.familyNameDelerue-Matos
person.familyNameMorais
person.familyNamede Sá Barroso
person.familyNameMoreira
person.givenNameCristina
person.givenNameSimone
person.givenNameMaria de Fátima
person.givenNameManuela M.
person.identifier1598822
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.ciencia-idAF16-22E5-5EBD
person.identifier.ciencia-idA414-640D-9066
person.identifier.orcid0000-0002-3924-776X
person.identifier.orcid0000-0001-6433-5801
person.identifier.orcid0000-0001-9011-5992
person.identifier.orcid0000-0003-1500-9211
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id6603741848
person.identifier.scopus-author-id7007053747
person.identifier.scopus-author-id25631648000
person.identifier.scopus-author-id7103289231
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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