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Microalgae-based unsaponifiable matter as source of natural antioxidants and metal chelators to enhance the value of wet Tetraselmis chuii biomass

2016Journal article Open access
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dc.contributor.authorGangadhar N. Katkam, Dr.
dc.contributor.authorH., Pereira
dc.contributor.authorRodrigues, Maria João
dc.contributor.authorL, Custódio
dc.contributor.authorBarreira, Luísa
dc.contributor.authorMalcata, F. Xavier
dc.contributor.authorJ. C. or Varela J. or Varela J.C.S., Varela
dc.date.accessioned2020-08-31T16:34:05Z
dc.date.available2020-08-31T16:34:05Z
dc.date.issued2016
dc.description.abstractThe present work aimed to determine the antioxidant, metal chelating and neuroprotective potential of the unsaponifiable matter (UM) of Tetraselmis chuii to be applied to a biorefinery setting. The UM obtained via saponification from crude lipids extracted from microalgal wet biomass showed a radical scavenging activity (RSA) towards the DPPH radical of 90.7 +/- 1.3% and 57.1 +/- 1.2% at a concentration of 10 and 5 mg/ mL, respectively. The UM fraction also displayed metal chelating capacity at a concentration of 5 mg/ mL: 58.5 +/- 1.4% and 50.9 +/- 4.0% for copper and iron, respectively. The chemical characterization of the UM revealed significant levels of total phenolics (TPC, 13.61 mg GAE/g) and carotenoids (2.45 mg/g of beta-carotene, lutein and violaxanthin). Overall, the separation of the UM containing high value metabolites might significantly upgrade the total wet biomass value in a biorefinery, allowing the exploitation of a stream with relevant antioxidant and metal chelating activities.pt_PT
dc.description.sponsorshipSFRH/BD/105541/2014, IF/00049/2012, CCMAR/Multi/04326/2013pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1515/chem-2016-0029pt_PT
dc.identifier.issn2391-5420
dc.identifier.urihttp://hdl.handle.net/10400.1/14656
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherDe Gruyter Openpt_PT
dc.relationTECHNOLOGICAL IMPROVEMENTS OF BIODIESEL PRODUCTION USING OILS SYNTHESIZED BY MICROALGAE
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTetraselmis chuiipt_PT
dc.subjectUnsaponifiable matterpt_PT
dc.subjectAntioxidantspt_PT
dc.subjectMetal chelatorspt_PT
dc.subjectPhenolicspt_PT
dc.titleMicroalgae-based unsaponifiable matter as source of natural antioxidants and metal chelators to enhance the value of wet Tetraselmis chuii biomasspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTECHNOLOGICAL IMPROVEMENTS OF BIODIESEL PRODUCTION USING OILS SYNTHESIZED BY MICROALGAE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F81882%2F2011/PT
oaire.citation.endPage307pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage299pt_PT
oaire.citation.titleOpen Chemistrypt_PT
oaire.citation.volume14pt_PT
person.familyNameKatkam
person.familyNamePereira
person.familyNameRodrigues
person.familyNameCustódio
person.familyNameBarreira
person.familyNameVarela
person.givenNameDr. Gangadhar
person.givenNameHugo
person.givenNameMaria João
person.givenNameLuísa
person.givenNameLuísa
person.givenNameJoão
person.identifier282781
person.identifierR-004-VNG
person.identifier.ciencia-idB91F-5FD0-CB1C
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.ciencia-id2514-0E17-1D8D
person.identifier.ciencia-id791B-C560-AEA2
person.identifier.ciencia-id6D1A-17E5-1400
person.identifier.orcid0000-0002-5368-5475
person.identifier.orcid0000-0002-1369-2099
person.identifier.orcid0000-0001-8732-710X
person.identifier.orcid0000-0003-4338-7703
person.identifier.orcid0000-0002-4077-855X
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridM-4677-2013
person.identifier.ridE-9360-2015
person.identifier.ridM-6101-2013
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id11638783300
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id56031608100
person.identifier.scopus-author-id15831018900
person.identifier.scopus-author-id55741416000
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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