Publication
Exploring the antioxidant potential of Lobosphaera sp. and Odontella sp. biomasses under different extraction and preservation conditions
| dc.contributor.author | Corrêa, P.S. | |
| dc.contributor.author | Coimbra, R.S.T. | |
| dc.contributor.author | Caetano, N.S. | |
| dc.date.accessioned | 2024-03-19T12:55:13Z | |
| dc.date.available | 2024-03-19T12:55:13Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | Microalgae has aroused academic and industrial interest due to the great variety of biomolecules present in their biomasses, in addition to other products released to the extracellular medium during cultivation [1]. Lobosphaera sp. is a freshwater green alga known to accumulate large amounts of polyunsaturated fatty acids (PUFAs), especially arachidonic acid (ARA, ω-6) [2]. In contrast, Odontella sp. is a marine diatom that has been reported as a potential source of fucoxanthin and eicosapentaenoic acid (EPA, ω-3). Also producing chrysolaminarin (β-1,3-glucan) as a storage polysaccharide, which has a high capacity to scavenge hydroxyl radicals [3]. Nevertheless, other antioxidants can be obtained through ethanolic extraction of some polar compounds (e.g., phenols, flavonoids, chlorophylls) [4]. Under specific conditions Lobosphaera sp. and Odontella sp. were able to produce extracts with considerable amounts of phenolic compounds, 11.5 and 20.9 mg GAE·g-1, respectively. Interestingly, studies have suggested that phenolic compounds have the main effect on total antioxidant activity when compared to carotenoids and tocopherols, for example [5,6]. Finally, the ferrous-ion chelating ability (FICA) and DPPH• radical scavenging activity (RSA) of ethanolic extracts obtained from these genera were also investigated, varying from 43 to 60 % and 1 to 9 %, respectively. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Corrêa, P.S., Coimbra, R.S.T., & Caetano, N.S. (2023, June 21-22). Exploring the antioxidant potential of Lobosphaera sp. and Odontella sp. biomasses under different extraction and preservation conditions [Poster]. Seagriculture 2023 - 12th International Seaweed Conference EU, Trondheim, Norway | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.22/25199 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | no | pt_PT |
| dc.subject | Antioxidants | pt_PT |
| dc.subject | Lobosphaera sp. | pt_PT |
| dc.subject | Odontella sp. | pt_PT |
| dc.subject | Biomass | pt_PT |
| dc.subject | Extraction | pt_PT |
| dc.subject | Preservation | pt_PT |
| dc.title | Exploring the antioxidant potential of Lobosphaera sp. and Odontella sp. biomasses under different extraction and preservation conditions | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Trondheim, Norway | pt_PT |
| oaire.citation.title | Seagriculture 2023 - 12th International Seaweed Conference EU | pt_PT |
| person.familyName | Corrêa | |
| person.familyName | Coimbra | |
| person.familyName | Caetano | |
| person.givenName | Priscila | |
| person.givenName | Raquel | |
| person.givenName | Nídia | |
| person.identifier | R-000-DJC | |
| person.identifier.ciencia-id | C017-2559-299E | |
| person.identifier.ciencia-id | 1F1D-73E2-BFBF | |
| person.identifier.orcid | 0000-0003-1490-6594 | |
| person.identifier.orcid | 0000-0001-8412-6185 | |
| person.identifier.orcid | 0000-0002-2185-6401 | |
| person.identifier.rid | I-3934-2012 | |
| person.identifier.scopus-author-id | 57212156213 | |
| person.identifier.scopus-author-id | 55901684900 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
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