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Evaluation of proximate composition, antioxidant properties, and phylogenetic analysis of two edible seaweeds

2020-07Journal article Restricted
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dc.contributor.authorRathinam, Raja
dc.contributor.authorHemaiswarya, Shanmugam
dc.contributor.authorSridhar, Sekaran
dc.contributor.authorAlagarsamy, Arun
dc.contributor.authorGanesan, Venkatesan
dc.contributor.authorElumalai, Sanniyasi
dc.contributor.authorCarvalho, Isabel S.
dc.date.accessioned2021-06-24T11:35:21Z
dc.date.available2021-06-24T11:35:21Z
dc.date.issued2020-07
dc.description.abstractThe present study was evaluated for the proximate composition (moisture, carbohydrate, protein, and lipid contents) of two seaweedsGracilaria corticata(Rhodophyceaen) andHalimeda opuntia(Chlorophycean). Phylogenetic analysis based on the SSU (small subunit) rRNA ascertained their molecular identification. The results showed that the carbohydrate (5.72 +/- 0.05 g/100 g), protein (42.38 +/- 0.08 g/100 g), and total lipids (10.09 +/- 0.06 g/100 g) are elevated inG. corticatawhen compared toH. opuntia. H. opuntiahad a protein content of 3.51 +/- 0.072 g/100 g and higher moisture content (95 +/- 0.45 g/100 g). The methanolic extracts ofG. corticataandH. opuntiawere used to examine the antioxidants (viz. TPC, TFC, DPPH, and FRAP) and antidiabetic (alpha-glucosidase) properties. The antioxidant results of the methanolic extract ofG.corticataexhibited a higher amount of phenolic compounds (13.37 +/- 0.01 mg GAE/g dry wt.) compared toH. opuntia. But in the case of flavonoids,H.opuntiacontained a slightly higher amount of quercetin equivalent 9.56 +/- 0.26 mg/g dry wt. In FRAP,H.opuntiashowed an elevated level (62.02 mg TE/g dry wt). DPPH scavenging activity in the seaweed extracts were recorded in the following order:H.opuntiaandG.corticata. The amino acid content ofH.opuntiawas 0.097 +/- 0.56 (mg/g) and 0.086 +/- 0.42 (mg/g) was recorded inG.corticata. [GRAPHICS.]
dc.description.sponsorshipUniversity of Algarve, Portugal
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1080/23080477.2020.1795338
dc.identifier.urihttp://hdl.handle.net/10400.1/16414
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor & Francis
dc.subjectAntioxidant
dc.subjectSeaweeds
dc.subjectAlpha-glucosidase
dc.subjectProximate analysis
dc.subject.otherScience & Technology
dc.titleEvaluation of proximate composition, antioxidant properties, and phylogenetic analysis of two edible seaweeds
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage100
oaire.citation.issue3
oaire.citation.startPage95
oaire.citation.titleSmart Science
oaire.citation.volume8
person.familyNameRathinam
person.familyNameSaraiva de Carvalho
person.givenNameRaja
person.givenNameIsabel Maria Marques
person.identifier.ciencia-id591A-3777-B036
person.identifier.orcid0000-0002-8445-6034
person.identifier.orcid0000-0001-8057-3404
person.identifier.ridM-8564-2013
person.identifier.scopus-author-id16029399900
person.identifier.scopus-author-id35995183800
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublicationcf31fff2-143a-4f1f-ab45-7074ade0179b
relation.isAuthorOfPublicationaf26e659-578b-4e5f-a649-384cd5e4f8e3
relation.isAuthorOfPublication.latestForDiscoverycf31fff2-143a-4f1f-ab45-7074ade0179b

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