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Evaluating the Potential of the Defatted By-Product of Aurantiochytrium sp. Industrial Cultivation as a Functional Food

2021-12-09Journal article Open access
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datacite.subject.fosCiências Médicas::Ciências da Saúde
datacite.subject.fosCiências Sociais::Outras Ciências Sociais
datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg14:Proteger a Vida Marinha
dc.contributor.authorReboleira, João
dc.contributor.authorFélix, Rafael
dc.contributor.authorFélix, Carina
dc.contributor.authorMelo, Marcelo M. R. de
dc.contributor.authorSilva, Carlos M.
dc.contributor.authorSaraiva, Jorge A.
dc.contributor.authorBandarra, Narcisa M.
dc.contributor.authorTeixeira, Bárbara
dc.contributor.authorMendes, Rogério
dc.contributor.authorPaulo, Maria C.
dc.contributor.authorCoutinho, Joana
dc.contributor.authorLemos, Marco F. L.
dc.date.accessioned2026-01-05T18:42:56Z
dc.date.available2026-01-05T18:42:56Z
dc.date.issued2021-12-09
dc.description.abstractWhile Aurantiochytrium sp. is an increasingly popular source of polyunsaturated fatty acids (PUFAs), its extraction generates high amounts of waste, including the spent, defatted residue. The composition and bioactivities of this by-product could prove to be a major part of the sustainable valorisation of this organism within the framework of a circular economy. In this study, the defatted biomass of commercial Aurantiochytrium sp. was nutritionally characterised, and its amino acid profile was detailed. Additionally, the antioxidant and prebiotic potentials of an enzymatically digested sample of defatted Aurantiochytrium sp. were evaluated under a set of miniaturised in vitro assays. The nutritional profile of the spent Aurantiochytrium biomass revealed a protein and dietary-fibre rich product, with values reaching 26.7% and 31.0% for each, respectively. It also held high concentrations of glutamic and aspartic acid, as well as a favourable lysine/arginine ratio of 3.73. The digested samples demonstrated significant Weissela cibaria and Bifidobacterium bifidum growth-enhancing potential. Residual ferric reducing antioxidant power (FRAP) activity was likely attributed to antioxidant amino acids or peptides. The study demonstrated that some of the nutritional and functional potential that reside in the defatted Aurantiochytrium sp. waste encourages additional studies and the development of food supplements employing this resource’s by-products under a biorefinery framework.eng
dc.description.sponsorshipThis study had the support of Fundação para a Ciência e a Tecnologia (FCT) through the Strategic Project UID/MAR/04292/2020 to MARE, UIDB/50011/2020 & UIDP/50011/2020 to CICECO, and the University of Aveiro and FCT/MCT for the financial support for LAQV-REQUIMTE research Unit (FCT UIDB/50006/2020) through national founds, and, where applicable, co-financed by the FEDER, within the PT2020 Partnership Agreement. This work was also funded by the project Algavalue—Valorização dos subprodutos do processo biotecnológico de produção de esqualeno e DHA pela microalga Aurantiochytrium sp. (POCI-01-0247-FEDER-017680) supported by COMPETE 2020, and Integrated Programme of SR&TD “SmartBioR” (reference Centro-01-0145-FEDER-000018) cofunded by Centro 2020 program, Portugal 2020, European Union, through the European Regional Development Fund.
dc.identifier.citationReboleira, J.; Félix, R.; Félix, C.; de Melo, M.M.R.; Silva, C.M.; Saraiva, J.A.; Bandarra, N.M.; Teixeira, B.; Mendes, R.; Paulo, M.C.; et al. Evaluating the Potential of the Defatted By-Product of Aurantiochytrium sp. Industrial Cultivation as a Functional Food. Foods 2021, 10, 3058. https:// doi.org/10.3390/foods10123058.
dc.identifier.doi10.3390/foods10123058
dc.identifier.eissn2304-8158
dc.identifier.urihttp://hdl.handle.net/10400.8/15223
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationCICECO-Aveiro Institute of Materials
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relation.hasversionhttps://www.mdpi.com/2304-8158/10/12/3058
dc.relation.ispartofFoods
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectspent biomass
dc.subjectprebiotic potential
dc.subjectenzymatic digestion
dc.subjectbiorefinery
dc.subjectcircular economy
dc.subjectby-products
dc.titleEvaluating the Potential of the Defatted By-Product of Aurantiochytrium sp. Industrial Cultivation as a Functional Foodeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.citation.endPage13
oaire.citation.startPage1
oaire.citation.titleFoods
oaire.citation.volume10
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMendes Reboleira
person.familyNameFaria da Costa Félix
person.familyNameFaria Da Costa Félix
person.familyNameLemos
person.givenNameJoão
person.givenNameRafael Alexandre
person.givenNameCarina Rafaela
person.givenNameMarco
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person.identifier.ciencia-idA014-8343-2B4E
person.identifier.ciencia-idA315-5CB0-097C
person.identifier.ciencia-id2015-2A43-2055
person.identifier.ciencia-id971F-ACCA-C0D1
person.identifier.orcid0000-0003-3261-6857
person.identifier.orcid0000-0003-4766-3736
person.identifier.orcid0000-0002-9813-9400
person.identifier.orcid0000-0001-9887-1864
person.identifier.ridF-7951-2011
person.identifier.scopus-author-id57200377641
person.identifier.scopus-author-id7006042884
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
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While Aurantiochytrium sp. is an increasingly popular source of polyunsaturated fatty acids (PUFAs), its extraction generates high amounts of waste, including the spent, defatted residue. The composition and bioactivities of this by-product could prove to be a major part of the sustainable valorisation of this organism within the framework of a circular economy. In this study, the defatted biomass of commercial Aurantiochytrium sp. was nutritionally characterised, and its amino acid profile was detailed. Additionally, the antioxidant and prebiotic potentials of an enzymatically digested sample of defatted Aurantiochytrium sp. were evaluated under a set of miniaturised in vitro assays. The nutritional profile of the spent Aurantiochytrium biomass revealed a protein and dietary-fibre rich product, with values reaching 26.7% and 31.0% for each, respectively. It also held high concentrations of glutamic and aspartic acid, as well as a favourable lysine/arginine ratio of 3.73. The digested samples demonstrated significant Weissela cibaria and Bifidobacterium bifidum growth-enhancing potential. Residual ferric reducing antioxidant power (FRAP) activity was likely attributed to antioxidant amino acids or peptides. The study demonstrated that some of the nutritional and functional potential that reside in the defatted Aurantiochytrium sp. waste encourages additional studies and the development of food supplements employing this resource’s by-products under a biorefinery framework.
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