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Assessing High-Value Bioproducts from Seaweed Biomass: A Comparative Study of Wild, Cultivated and Residual Pulp Sources

2025-05-21Journal article Open access
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dc.contributor.authorFerreira, Henrique S.
dc.contributor.authorMouga, Teresa
dc.contributor.authorLourenço, Sílvia
dc.contributor.authorMatias, Margarida H.
dc.contributor.authorFreitas, Marta V.
dc.contributor.authorClélia Neves-Afonso
dc.date.accessioned2025-07-07T09:45:19Z
dc.date.available2025-07-07T09:45:19Z
dc.date.issued2025-05-21
dc.description.abstractThis study aimed to evaluate the biochemical composition and bioactivities of biomass derived from wild (Laminaria ochroleuca and Saccorhiza polyschides) and cultivated (Macrocystis pyrifera) kelps, as well as industrially extracted residual pulp from M. pyrifera, to assess the potential production of high value bioproducts. All samples had a low lipid content, with M. pyrifera having the lowest (1.3% dw) and S. polyschides showing the highest value (3.3%). Fatty acids such as palmitic acid (C16:0), oleic acid (C18:1n-9 cis), alpha-linolenic acid (ALA, C18:3n-3), and eicosapentaenoic acid (EPA, C20:5n-3) were present, with the residual pulp having a distinctive n-6/n-3 ratio of less than one. The protein content was around 9% dry weight (dw) in all samples. The residual pulp and S. polyschides had the highest polyphenol content, with 4.86 and 4.94 mg GAE·g−1 extract, respectively. Hydroethanolic extracts (30–70%) confirmed Fe3+ reducing activity (FRAP) in all samples. These findings offer valuable insights on the biochemical composition and bioactivity of the kelp species under study and the residual kelp biomass (pulp), underlining their significant potential for applications in the field of Blue Biotechnology.eng
dc.description.sponsorshipThis work had the support of national funds through Fundação para a Ciência e Tecnologia (FCT), within the scope of the projects UID/04292/MARE-Centro de Ciências do Mar e do Ambiente and LA/P/0069/2020 (ARNET Associate Laboratory) (https://doi.org/10.54499/LA/P/0069/2020), and also the doctoral grant awarded to Marta V. Freitas, UI/BD/150957/2021 (https://doi.org/10.54499/UI/BD/150957/2021). Sílvia Lourenço is supported by the strategic project LA/P/0069/2020 (https://doi.org/10.54499/LA/P/0069/2020) granted to the Associate Laboratory ARNET by FCT.
dc.identifier.citationFerreira, H.S.; Mouga, T.; Lourenço, S.; Matias, M.H.; Freitas, M.V.; Afonso, C.N. Assessing High-Value Bioproducts from Seaweed Biomass: A Comparative Study of Wild, Cultivated and Residual Pulp Sources. Appl. Sci. 2025, 15, 5745. https://doi.org/10.3390/ app15105745
dc.identifier.doi10.3390/app15105745
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.8/13546
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI AG
dc.relationMARE - Marine and Environmental Sciences Centre
dc.relationAquatic Research Infrastructure Network
dc.relationUnravelling the Biotechnological Potential of Red Seaweeds Rhodophyta In Culture
dc.relation.hasversionhttps://www.mdpi.com/2076-3417/15/10/5745
dc.relation.ispartofApplied Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectLaminaria ochroleuca
dc.subjectMacrocystis pyrifera
dc.subjectSaccorhiza polyschides
dc.subjectLipid profile
dc.subjectProtein content
dc.subjectAntioxidant activity
dc.titleAssessing High-Value Bioproducts from Seaweed Biomass: A Comparative Study of Wild, Cultivated and Residual Pulp Sourceseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardTitleAquatic Research Infrastructure Network
oaire.awardTitleUnravelling the Biotechnological Potential of Red Seaweeds Rhodophyta In Culture
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0069%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/UI%2FBD%2F150957%2F2021/PT
oaire.citation.endPage25
oaire.citation.issue10
oaire.citation.startPage1
oaire.citation.titleApplied Science
oaire.citation.volume15
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSilva Ferreira
person.familyNameMouga
person.familyNamePereira Lourenço
person.familyNameFreitas
person.familyNameAfonso
person.givenNameHenrique
person.givenNameTeresa
person.givenNameSílvia Alexandra
person.givenNameMarta V.
person.givenNameClélia
person.identifier572069
person.identifier153274
person.identifier.ciencia-idE312-FDCC-1ED8
person.identifier.ciencia-id1E12-4289-7CF3
person.identifier.ciencia-id001C-62E2-F6AD
person.identifier.ciencia-idC512-13C3-50DD
person.identifier.orcid0009-0000-6071-8450
person.identifier.orcid0000-0003-4849-8840
person.identifier.orcid0000-0003-4426-0894
person.identifier.orcid0000-0002-1164-224X
person.identifier.orcid0000-0002-4167-5237
person.identifier.ridY-5518-2018
person.identifier.ridB-1211-2016
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
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