Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/100921
DC FieldValueLanguage
dc.contributor.authorPacheco, Diana-
dc.contributor.authorMiranda, Giuseppe-
dc.contributor.authorRocha, Carolina P.-
dc.contributor.authorPato, Rosinda L.-
dc.contributor.authorCotas, João-
dc.contributor.authorGonçalves, Ana M. M.-
dc.contributor.authorSantos, Sandra M. Dias-
dc.contributor.authorBahcevandziev, Kiril-
dc.contributor.authorPereira, Leonel-
dc.date.accessioned2022-07-20T10:04:56Z-
dc.date.available2022-07-20T10:04:56Z-
dc.date.issued2021-
dc.identifier.issn2076-3417pt
dc.identifier.urihttps://hdl.handle.net/10316/100921-
dc.description.abstractSeaweeds have been incorporated in the daily diet of several human cultures since ancient times, due to their nutritional characteristics and healthy properties. The brown seaweeds Undaria pinnatifida, Saccharina latissima, Sacchoriza polyschides, and Laminaria ochroleuca were collected in the Viana do Castelo (Portugal) bay to assess their proximate composition analysis. As a result, the algal biomass was dried, and its moisture and ash content were determined. The dried biomass was then analyzed for total nitrogen/total protein (using the Kjeldahl method), total fiber content (through fiber analyzer digestion), total lipids (in a Soxhlet apparatus), and fatty acid characterization (by gas chromatography-mass spectrometry). Apart from phosphorus, which was analyzed by spectrophotometry, the ashes were employed for mineral and trace element characterization via dry mineralization and quantified using flame atomic absorption spectrometry. Moreover, the total phenolic content was assessed spectrophotometrically by the Folin-Ciocalteu method in the algal aqueous extracts. Analyses showed that their protein concentrations ranged from 12 to 24% dry weight (DW), while lipid concentrations varied between 0.51% and 1.52% DW. Regarding the carbohydrate concentration in these seaweeds, a concentration between 48% and 60% DW was observed. The S. polyschides had the highest overall total phenolic content (6.19 10 3 g GAE/100 g of dried algae), while L. ochroleuca had the lowest amount (3.72 10 3 g GAE/100 g of dried algae). U. pinnatifida had the highest total fatty acid content (35.13 mg/g DW), whereas S. latissima presented the lowest value (22.59 mg/g DW). Significant concentrations of highly unsaturated fatty acids (HUFA) were observed in both seaweeds, with U. pinnatifida having the highest value (10.20 mg/g DW) and S. latissima the lowest content (4.81 mg/g DW). It is also highlighted that these seaweeds have a nutritional relevance as a source of essential nutrients, including nitrogen, potassium, sodium, calcium, magnesium, and iron.pt
dc.language.isoengpt
dc.relationFCT UIDB/ 04292/2020 (MARE)pt
dc.relationFCT UIDP/50017/2020+UIDB/50017/2020 (CESAM)pt
dc.relationproject PORBIOTA—E-Infrastructure Portuguese Information and Research in Biodiversity (POCI-01-0145-FEDER-022127)pt
dc.relationPTDC/BIA-CBI/ 31144/2017-POCI-01project-0145-FEDER-031144-MARINE INVADERSpt
dc.relationERDF through POCI (Operational Program Competitiveness and Internationalization) and by the Foundation for Science and Technology (FCT, IP).pt
dc.relationInterreg Atlantic Area Pro-gram, under the project NASPA (EAPA_451/2016).pt
dc.relationUniversity of Coimbra contract IT057-18-7253pt
dc.relationproject MENU—Marine Macroalgae: Alternative recipes for a daily nutritional diet (FA_05_2017_011), funded by the Blue Fund under Public Notice No. 5—Blue Biotechnologypt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectbrown seaweedspt
dc.subjectchemical compositionpt
dc.subjectnutritional valuept
dc.subjectmacro and micronutrientspt
dc.subjectfatty acidspt
dc.subjectphenolic compoundspt
dc.titlePortuguese Kelps: Feedstock Assessment for the Food Industrypt
dc.typearticle-
degois.publication.firstPage10681pt
degois.publication.issue22pt
degois.publication.titleApplied Sciences (Switzerland)pt
dc.peerreviewedyespt
dc.identifier.doi10.3390/app112210681pt
degois.publication.volume11pt
dc.date.embargo2021-01-01*
uc.date.periodoEmbargo0pt
item.openairetypearticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.orcid0000-0001-5509-1067-
crisitem.author.orcid0000-0002-2202-6426-
crisitem.author.orcid0000-0002-8611-7183-
crisitem.author.orcid0000-0002-6819-0619-
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais
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