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Assessment of marine microalgae's bioactive extracts potential for food applications

2026-01-29Artigo de investigação Acesso aberto
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dc.contributor.authorSousa, V.
dc.contributor.authorCoelho, M.
dc.contributor.authorMartins, J.
dc.contributor.authorPereira, R. N.
dc.contributor.authorMaciel, F.
dc.contributor.authorPintado, M.
dc.contributor.authorDias, O.
dc.contributor.authorVicente, A. A.
dc.contributor.authorGeada, P.
dc.date.accessioned2026-02-16T10:47:42Z
dc.date.available2026-02-16T10:47:42Z
dc.date.issued2026-01-29
dc.description.abstractThe growing demand for sustainable and functional food ingredients has driven interest in marine microalgae as a source of bioactive compounds. This study evaluates the bioactivity, safety, and metabolite profile of extracts from Dunaliella salina and Pavlova gyrans, produced through two extraction methods: osmotic shock and bead milling with ethanol. Aqueous extracts were rich in peptides and amino acids, while ethanolic extracts contained higher pigment concentrations, underlining distinct nutritional biochemistry profiles. Both extracts exhibited significant antioxidant activity (4 mg mL?1), with aqueous extracts demonstrating a stronger effect. Cellular antioxidant activity assays using the Caco-2 cell line confirmed comparable efficacy between extraction methods. Antibacterial tests revealed that D. salina extracts effectively inhibited Listeria innocua, Escherichia coli, and Staphylococcus epidermidis, while P. gyrans extracts showed activity against L. innocua, E. coli, Bacillus cereus, and Pseudomonas fluorescens. Additionally, both microalgae extracts demonstrated functional food potential by inhibiting ?-glucosidase (27%–36%) and angiotensin-converting enzyme (21.7%–37.9%), suggesting antidiabetic and antihypertensive properties. Cell viability assays confirmed the extracts’ safety for potential food applications. These findings support the sustainable use of D. salina and P. gyrans as innovative bioactive ingredients for functional and eco-friendly food formulations.eng
dc.identifier.citationSousa, V., Coelho, M., Martins, J., & Pereira, R. N. et al. (2026). Assessment of marine microalgae's bioactive extracts potential for food applications. Molecular Nutrition and Food Research, 70(2), Article e70398. https://doi.org/10.1002/mnfr.70398
dc.identifier.doi10.1002/mnfr.70398
dc.identifier.eid105028929120
dc.identifier.issn1613-4125
dc.identifier.other5687c165-d2ff-4920-bca3-3a98c78e656f
dc.identifier.pmcPMC12852065
dc.identifier.pmid41606300
dc.identifier.urihttp://hdl.handle.net/10400.14/57022
dc.identifier.wos001677699500004
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBioactive compounds
dc.subjectDunaliella salina
dc.subjectMicroalgal bioactive extracts
dc.subjectNutritional bioactivity
dc.subjectPavlova gyrans
dc.titleAssessment of marine microalgae's bioactive extracts potential for food applicationseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.issue2
oaire.citation.titleMolecular Nutrition and Food Research
oaire.citation.volume70
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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