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Lipid composition and some bioactivities of 3 newly isolated microalgae (Tetraselmis sp. IMP3, Tetraselmis sp. CTP4, and Skeletonema sp.)

2020Journal article Restricted access
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dc.contributor.authorCardoso, Cátia
dc.contributor.authorPereira, H.
dc.contributor.authorFranca, J.
dc.contributor.authorMatos, J.
dc.contributor.authorMonteiro, I.
dc.contributor.authorPousão-Ferreira, P.
dc.contributor.authorGomes, A.
dc.contributor.authorBarreira, Luísa
dc.contributor.authorVarela, Varela J.
dc.contributor.authorNeng, N.
dc.contributor.authorNogueira, J. M.
dc.contributor.authorAfonso, C.
dc.contributor.authorBandarra, N. M.
dc.date.accessioned2020-08-06T08:46:14Z
dc.date.available2020-08-06T08:46:14Z
dc.date.issued2020
dc.description.abstractRecently isolated microalgae Tetraselmis sp. IMP3, Tetraselmis sp. CTP4, and Skeletonema sp. were studied. The three novel strains contained relatively high levels of polyunsaturated fatty acids (PUFA) and n3 PUFA. However, highly unsaturated n3 FA contents were relatively low (5.7-13.0% of the total FA). In general, eicosapentaenoic acid (EPA, 20:5 n3) contents were low (< 6.4% of the total FA). However, in Skeletonema biomass, EPA levels were higher than 10% of the total FA. alpha-Linolenic acid (ALA, 18:3 n3) and 16:3 n4 were the main PUFA in Tetraselmis strains and Skeletonema, respectively. High contents of myristic (14:0) and palmitoleic (16:1 n7) acids were found in Skeletonema (exceeding 20% of the total FA in both cases), whereas the Tetraselmis strains were rich in palmitic (16:0), 15-27% of the total FA, and oleic (18:1 n9) acids, 12-19% of the total FA. Linoleic acid (18:2 n6) content was low in Skeletonema (< 1% of the total FA). This microalga had the highest total polyphenol content, reaching 300-400 mg/100 g dw. Gentisic acid was the main phenolic compound in the aqueous and ethanolic extracts of this microalga. The highest antioxidant activity was displayed by Skeletonema. The ferric ion reducing antioxidant power (FRAP) and 2,2 '-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) methods showed higher antioxidant power for Skeletonema sp. extracts, reaching an ABTS reduction of more than 80%. Concerning anti-inflammatory activity, ethanolic extracts of Skeletonema sp. exhibited the highest inhibitory capacity of cyclooxygenase-2 (COX-2), 82 +/- 2%, which compares to 36 +/- 9% in Tetraselmis sp. CTP4 and 45 +/- 5% in Tetraselmis sp. IMP3. Aqueous extracts had always a lower anti-inflammatory capacity, 6-30%. Therefore, these microalgae have potential for multiple applications, ranging from bioactive feedstocks to aquaculture and nutraceutical uses.pt_PT
dc.description.sponsorshipSFRH/BPD/102689/2014, (SFRH/BD/129795/2017, SFRH/BD/105541/2014, project 0055 ALGARED+ 5E-INTERREG V-Apt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s10499-019-00489-wpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.1/14609
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.subjectTetraselmis sppt_PT
dc.subjectIMP3pt_PT
dc.subjectTetraselmis sppt_PT
dc.subjectCTP4pt_PT
dc.subjectSkeletonema sppt_PT
dc.subjectLipid compositionpt_PT
dc.subjectAntioxidant activitypt_PT
dc.subjectAnti-inflammatory activitypt_PT
dc.titleLipid composition and some bioactivities of 3 newly isolated microalgae (Tetraselmis sp. IMP3, Tetraselmis sp. CTP4, and Skeletonema sp.)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage727pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage711pt_PT
oaire.citation.titleAquaculture Internationalpt_PT
oaire.citation.volume28pt_PT
person.familyNameCardoso
person.familyNamePereira
person.familyNameBarreira
person.familyNameVarela
person.givenNameCátia
person.givenNameHugo
person.givenNameLuísa
person.givenNameJoão
person.identifier282781
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.ciencia-id6D1A-17E5-1400
person.identifier.orcid0000-0003-3157-9898
person.identifier.orcid0000-0002-1369-2099
person.identifier.orcid0000-0002-4077-855X
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridI-9235-2014
person.identifier.ridE-9360-2015
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id54080259900
person.identifier.scopus-author-id55741416000
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationebcb2180-5235-4502-b562-cd1e7786e6f9
relation.isAuthorOfPublicationce3d77be-25df-4257-b5b3-aca8cff24116
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relation.isAuthorOfPublication.latestForDiscovery2cf7d59f-e432-46f3-a411-7085113ea2a7

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