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Commercial Red Seaweed in Portugal (Gelidium sesquipedale and Pterocladiella capillacea, Florideophyceae): Going beyond a Single-Purpose Product Approach by Valorizing Bioactivity

2020-04Journal article Restricted access
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dc.contributor.authorMatos, J.
dc.contributor.authorGomes, A,
dc.contributor.authorCardoso, C.
dc.contributor.authorAfonso, c.
dc.contributor.authorCampos, A.M.
dc.contributor.authorGomes, R.
dc.contributor.authorFalé, P.
dc.contributor.authorDelgado, Inês
dc.contributor.authorcoelho, Inês
dc.contributor.authorCastanheira, Isabel
dc.contributor.authorBandarra, N.M.
dc.date.accessioned2021-02-10T16:27:57Z
dc.date.available2021-04-01T00:30:15Z
dc.date.issued2020-04
dc.description.abstractThe red seaweed species Gelidium sesquipedale and Pterocladiella capillacea are commercially explored as one of the main seaweed resources in Portugal. However, they are essentially harvested for extraction of agar, leaving a large biomass share needing an adequate valorization. The two studied red seaweed species were characterized by a large share of saturated fatty acids (SFA) in the vicinity of 60% (of the total FAs). Concerning ω3 highly unsaturated FAs, only EPA reached a significant percentage in P. capillacea and G. sesquipedale, 13.0 ± 0.5% and 7.7 ± 0.1%, respectively. In comparison with other seaweeds, the phenolic content was low for both species and aqueous and ethanolic extracts. The antioxidant activity was also low or even undetected. Regarding anti-inflammatory activity, as measured by inhibition of cyclooxygenase-2, it was not detected in the aqueous extracts of the seaweed, but was significant in the ethanolic extracts, 69 ± 3% and 54 ± 6%, for P. capillacea and G. sesquipedale, respectively. Concerning cytotoxicity, while ethanolic extracts did not cause any detectable cytotoxicity, the biomass and the aqueous extracts reduced HeLa cell viability. Finally, the elemental composition showed differences between the two seaweed species. In particular, G. sesquipedale contained a higher I level than P. capillacea, 807 ± 51 mg/kg dw vs 435 ± 18 mg/kg dw. On the whole, attained results were promising and warrant further study.pt_PT
dc.description.sponsorshipThis work was supported by the following Grants: Ref.: SFRH/BPD/102689/2014 (“Fundação para a Ciência e a Tecnologia”, FCT) for Carlos Cardoso, DIVERSIAQUA (MAR2020, Ref.: 16-02-01-FEAM-66) for Cláudia Afonso, and (SFRH/BD/129795/2017; FCT) for Joana Matos. The experimental work was funded by the projects AQUAMAX (Ref.: 16-02-01-FMP-0047) and I9+ PROALGA (Ref.: 16-01-03-FMP-0011).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationThalassas.2020;36(1):213-24. doi:10.1007/s41208-019-00181-z. Epub 2019 Nov 23pt_PT
dc.identifier.doi10.1007/s41208-019-00181-zpt_PT
dc.identifier.issn0212-5919
dc.identifier.issn2366-1674
dc.identifier.urihttp://hdl.handle.net/10400.18/7263
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s41208-019-00181-zpt_PT
dc.subjectGelidium sesquipedalept_PT
dc.subjectPterocladiella capillaceapt_PT
dc.subjectChemical Compositionpt_PT
dc.subjectAntioxidant Activitypt_PT
dc.subjectAnti-inflammatory Activitypt_PT
dc.subjectCytotoxicitypt_PT
dc.subjectSegurança Alimentarpt_PT
dc.subjectCitotoxicidadept_PT
dc.subjectComposição dos Alimentospt_PT
dc.subjectSaúde Públicapt_PT
dc.subjectPortugal
dc.titleCommercial Red Seaweed in Portugal (Gelidium sesquipedale and Pterocladiella capillacea, Florideophyceae): Going beyond a Single-Purpose Product Approach by Valorizing Bioactivitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage224pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage213pt_PT
oaire.citation.titleThalassas: An International Journal of Marine Sciencespt_PT
oaire.citation.volume36pt_PT
rcaap.embargofctAcesso de acordo com política editorial da revista.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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