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Chemical and bioactivity profiling of the invasive macroalga rugulopteryx okamurae collected in southern Portugal supporting biotechnological valorisation approaches

2026-04-07Artigo científico Acesso aberto
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datacite.subject.sdg04:Educação de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorD’Unienville, Amandine
dc.contributor.authorLasnel, Lucas
dc.contributor.authorMacquigneau, Wadi
dc.contributor.authorTrentin, Riccardo
dc.contributor.authorPais, Adriana C. S.
dc.contributor.authorRodrigues, Maria João
dc.contributor.authorSantos, Sónia A. O.
dc.contributor.authorCustódio, Luísa
dc.date.accessioned2026-07-10T10:12:28Z
dc.date.available2026-07-10T10:12:28Z
dc.date.issued2026-04-07
dc.description.abstractThe invasive brown macroalga Rugulopteryx okamurae has rapidly expanded across the Mediterranean–Atlantic region, generating severe ecological impacts. Nevertheless, the considerable amount of biomass available creates opportunities for valorisation within circular bioeconomy frameworks. This study provides an integrated characterization of the chemical profile and bioactivities of freshly collected floating biomass of R. okamurae from southern Portugal. Proximate composition was determined, and lipophilic (hexane) and hydrophilic (water) extracts were analyzed by GC–MS and spectrophotometric methods. Antioxidant activity was assessed using complementary radical-scavenging, reducing power, and metal-chelation assays, and enzyme inhibition was evaluated against targets associated with neurodegenerative, metabolic, and dermatological disorders. The lipophilic fraction was dominated by long-chain alkanes (≈101 mg/g extract) and sterols, particularly fucosterol (≈43 mg/g extract), but exhibited low radical-scavenging capacity (no EC50 reached in DPPH or ABTS assays), and no relevant enzyme inhibition. In contrast, the water extract contained measurable phlorotannins (6.61 mg PGE/g extract) and showed moderate antioxidant (ABTS: EC50 = 5.17 mg/mL; FRAP: EC50 = 0.78 mg/mL) and enzyme inhibition activities (BChE: IC50 = 5.17 mg/mL; tyrosinase: IC50 = 0.78 mg/mL). Compared with previous studies on R. okamurae, this work applies a systematic fractionation of biomass from southern Portugal into polar and non-polar fractions and, for the first time, correlates the resulting detailed chemical profiles with multiple bioactivities. This approach revealed a clear functional differentiation between fractions, with bioactivity being mainly associated with polar metabolites. Overall, these findings highlight the value of structured extraction strategies for biomass valorisation and support the sustainable management of R. okamurae.eng
dc.description.sponsorshipUID/04326/2025, UID/PRR/04326/2025
dc.identifier.doi10.3390/jmse14070683
dc.identifier.issn2077-1312
dc.identifier.urihttp://hdl.handle.net/10400.1/29252
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofJournal of Marine Science and Engineering
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectinvasive species
dc.subjectCircular economy
dc.subjectBlue biotechnology
dc.subjectMarine biotechnology
dc.subjectSustainable mitigation strategies
dc.titleChemical and bioactivity profiling of the invasive macroalga rugulopteryx okamurae collected in southern Portugal supporting biotechnological valorisation approacheseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue7
oaire.citation.startPage683
oaire.citation.titleJournal of Marine Science and Engineering
oaire.citation.volume14
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMacquigneau
person.familyNameRodrigues
person.familyNameCustódio
person.givenNameWadi
person.givenNameMaria João
person.givenNameLuísa
person.identifierR-004-VNG
person.identifier.ciencia-id2514-0E17-1D8D
person.identifier.ciencia-id791B-C560-AEA2
person.identifier.orcid0009-0004-2707-332X
person.identifier.orcid0000-0001-8732-710X
person.identifier.orcid0000-0003-4338-7703
person.identifier.ridM-6101-2013
person.identifier.scopus-author-id56031608100
person.identifier.scopus-author-id15831018900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublicationd6b42cce-d757-4d6c-aa0b-67c8a4d12556
relation.isAuthorOfPublication12c32925-de9e-4289-bdd5-1d655d7a278c
relation.isAuthorOfPublicationf9cfed0f-6b67-413e-988c-ac7397183471
relation.isAuthorOfPublication.latestForDiscovery12c32925-de9e-4289-bdd5-1d655d7a278c
relation.isProjectOfPublication794d4c77-c731-471e-bc96-5a41dcd3d872
relation.isProjectOfPublication.latestForDiscovery794d4c77-c731-471e-bc96-5a41dcd3d872

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