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Use of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juveniles

2020Journal article Restricted access
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dc.contributor.authorBatista, Sónia
dc.contributor.authorPintado, Manuela
dc.contributor.authorMarques, Alexandra
dc.contributor.authorAbreu, Helena
dc.contributor.authorSilva, Joana L
dc.contributor.authorJessen, Flemming
dc.contributor.authorValente, Luísa M.P.
dc.date.accessioned2020-08-07T10:49:48Z
dc.date.available2020-08-07T10:49:48Z
dc.date.issued2020
dc.description.abstractAlgae are natural sources of nutrients, but the presence of anti-nutritional factors often compromises nutrient apparent digestibility coefficients (ADCs) in several fish species. In this study, physical-mechanical and enzymatic technological processing was applie to two seaweeds (Gracilaria gracilis and Ulva rigida) and three microalgae (Nannochloropsis oceanica, Chlorella vulgaris, and Tetraselmis sp.) in order to evaluate its effectiveness in improving nutrient ADC values in diets for European seabass. A practical commercial-based diet was used as reference (REF) and experimental diets were prepared by replacing 30% of REF diet with each test alga used either intact or after processing. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and fast performance liquid chromatography (FPLC) analyses revealed that enzymatic processing was more effective than the physical one in changing the protein and peptides composition, increasing the amount of low-molecular-weight compounds in seaweeds and N. oceanica microalgae. Protein digestibility was significantly affected by algae species and in the case of the microalgae by the technological process. Gracilaria gracilis is better digested than U. rigida and physical processing enhanced protein and energy ADC values. Nannochloropsis oceanica and C. vulgaris are better digested than Tetraselmis sp.; the highest protein and energy ADCs were observed in diets containing enzymatically processed N. oceanica (NAN-ENZ) and physically processed C. vulgaris (CHLO-PHY), followed by the diet with physically processed Tetraselmis sp. (TETR-PHY). Results clearly showed that it is possible to increase nutrient accessibility and digestibility of algae by fish, by selecting the most adequate method to disrupt the cell wall. Moreover, the physical-mechanical and enzymatic technological processes used in this study are scalable to the industrial level.pt_PT
dc.description.versionN/Apt_PT
dc.identifier.citationBatista, S., Pintado, M., Marques, A., Abreu, H., Silva, J. L., Jessen, F., ...Valente, L. M. (2020). Use of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juveniles. Journal of Applied Phycologypt_PT
dc.identifier.doi10.1007/s10811-020-02185-2pt_PT
dc.identifier.eissn1573-5176
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10400.14/30839
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationCOFASP/004/2015pt_PT
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.subjectAlgaept_PT
dc.subjectAntinutritional factors (ANFS)pt_PT
dc.subjectAquafeedspt_PT
dc.subjectCell wall-rupturept_PT
dc.subjectNutrient digestibility (ADC)pt_PT
dc.subjectNovel ingredientspt_PT
dc.titleUse of technological processing of seaweed and microalgae as strategy to improve their apparent digestibility coefficients in European seabass (Dicentrarchus labrax) juvenilespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04423%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04423%2F2020/PT
oaire.citation.titleJournal of Applied Phycologypt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePintado
person.familyNameValente
person.givenNameMaria Manuela
person.givenNameLuísa
person.identifier456608
person.identifier159662
person.identifier.ciencia-id2F13-AAE0-3405
person.identifier.ciencia-id3811-933F-A7EB
person.identifier.orcid0000-0002-0760-3184
person.identifier.orcid0000-0002-2496-4854
person.identifier.ridF-5696-2013
person.identifier.ridA-3769-2010
person.identifier.scopus-author-id7004483898
person.identifier.scopus-author-id7005825980
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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