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Biorefinery of red macroalgae from Madeira archipelago for value-added products

2026-01-19Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia do Ambiente
dc.contributor.authorNunes, Nuno
dc.contributor.authorVieira, Ana C.
dc.contributor.authorOdenthal, Kilian
dc.contributor.authorMiguel Â. A. Pinheiro de Carvalho
dc.contributor.authorNunes, Nuno
dc.contributor.authorLeal Vieira, Ana Carolina
dc.contributor.authorOdenthal, Kilian
dc.contributor.authorAlmeida Pinheiro de Carvalho, Miguel Angelo
dc.date.accessioned2026-09-21T09:25:39Z
dc.date.available2026-09-21T09:25:39Z
dc.date.issued2026-01-19
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p> Red macroalgae represent an underexplored yet promising resource due to their rich composition in proteins, pigments, and bioactive compounds with potential uses in nutraceutical, pharmaceutical, and agricultural industries. However, despite their abundance in coastal regions many species remain neglected and the development of efficient extraction and valorisation methods is still limited. This work assesses the optimization of protein and phycoerythrin extraction from three abundant red macroalgae species, <jats:italic>Grateloupia lanceola</jats:italic> , <jats:italic>Asparagopsis taxiformis</jats:italic> , and <jats:italic>Nemalion elminthoides</jats:italic> collected in Madeira island. Its major objective was to study a new biorefinery concept. The response surface methodology (RSM) results indicate that <jats:italic>G. lanceola</jats:italic> , harvested from offshore fish farms, exhibits the highest concentrations of both protein (2967 mg L <jats:sup>−1</jats:sup> ) and phycoerythrin (212 mg L <jats:sup>−1</jats:sup> ) when subjected to specific extraction parameters such as higher biomass weight (400 g) and increased number of cycles (18) using the Solid–Liquid Extraction system. In contrast, <jats:italic>A. taxiformis</jats:italic> and <jats:italic>N. elminthoides</jats:italic> demonstrated varied extraction patterns, with <jats:italic>A. taxiformis</jats:italic> producing substantial protein concentrations (328 mg L <jats:sup>−1</jats:sup> ) but lower phycoerythrin yields (11 mg L <jats:sup>−1</jats:sup> ). Sequential biorefinery methods were also employed to obtain bioactive compounds, and polysaccharides extracts. <jats:italic>G. lanceola</jats:italic> yields the highest concentration of soluble proteins (6.25 ± 0.59 g (100 g) <jats:sup>−1</jats:sup> dw) and polysaccharides (11.13 ± 4.85 g (100 g) <jats:sup>−1</jats:sup> dw), while <jats:italic>N. elminthoides</jats:italic> showed superior bioactive extract concentration (11.81 ± 0.31 g (100 g) <jats:sup>−1</jats:sup> dw). The phenolic content in bioactive extracts has also been assessed using the Folin Ciocalteu method, finding a significant variation in total phenolic content among the species (1.38 ± 0.22 and 5.16 ± 0.06 mg GAE g <jats:sup>−1</jats:sup> dw). The chromatographic analysis, formed by a Waters HPLC system and a photodiode array detector (Waters 2996) allowed to detect phenolic compounds within the bioactive extract, which include protocatechuic acid, hydroxybenzoic acid, epicatechin, p-coumaric acid and ferulic acid. Furthermore, the agronomic potential of the biorefinery residues was explored, revealing high nitrogen and phosphorus contents in liquid and solid residues, suggesting their potential to be used as biofertilizers. These findings contribute to the development of sustainable extraction processes for bioactive compounds from red macroalgae, enhancing the efficiency of biorefinery strategies and promoting the marine biomass valorization. </jats:p>eng
dc.identifier.citationNunes, N., Vieira, A. C., Odenthal, K., & de Carvalho, M. Â. P. (2026). Biorefinery of red macroalgae from Madeira archipelago for value-added products. Journal of Applied Phycology, 38(2), 883-907.
dc.identifier.doi10.1007/s10811-025-03779-4
dc.identifier.issn0921-8971
dc.identifier.issn1573-5176
dc.identifier.urihttp://hdl.handle.net/10400.13/7955
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Science and Business Media LLC
dc.relationUID/04033/2025
dc.relationLA/P/0126/2020
dc.relation.ispartofJournal of Applied Phycology
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCascade biorefinery
dc.subjectBiochemical analysis
dc.subjectMacroalgae profile
dc.subjectAgronomic application
dc.subject.
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.subjectFaculdade de Ciências da Vida
dc.titleBiorefinery of red macroalgae from Madeira archipelago for value-added productseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage907
oaire.citation.issue2
oaire.citation.startPage883
oaire.citation.titleJournal of Applied Phycology
oaire.citation.volume38
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameNunes
person.familyNameLeal Vieira
person.familyNameOdenthal
person.familyNameAlmeida Pinheiro de Carvalho
person.givenNameNuno
person.givenNameAna Carolina
person.givenNameKilian
person.givenNameMiguel Angelo
person.identifier1218558
person.identifier.ciencia-idD412-34DB-BB84
person.identifier.ciencia-id1F18-D56D-A988
person.identifier.ciencia-id4610-6741-6816
person.identifier.orcid0000-0001-6166-8045
person.identifier.orcid0000-0003-3701-9648
person.identifier.orcid0000-0001-9303-9366
person.identifier.orcid0000-0002-5084-870X
person.identifier.ridAEE-0913-2022
person.identifier.scopus-author-id8758577600
relation.isAuthorOfPublication5ac05503-bbdc-4c1e-8bf3-feaed0358e41
relation.isAuthorOfPublication6d7bdaef-995b-4ba2-90f5-53a7e675af2c
relation.isAuthorOfPublication6cae0060-7e6c-431d-8370-b83cd39e6b6c
relation.isAuthorOfPublication2e433c48-88f8-40a2-b21f-de78b44aab1c
relation.isAuthorOfPublication.latestForDiscovery5ac05503-bbdc-4c1e-8bf3-feaed0358e41

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