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The potential of Chitosan-Based composites for adsorption of diarrheic shellfish toxins

2024-04-21Journal article Open access
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dc.contributor.authorLeal, Joana F.
dc.contributor.authorAmado, Patrícia
dc.contributor.authorP. Lourenço, J.
dc.contributor.authorLurdes Santos Cristiano, Maria
dc.date.accessioned2024-05-02T09:38:26Z
dc.date.available2024-05-02T09:38:26Z
dc.date.issued2024-04-21
dc.date.updated2024-04-30T12:39:25Z
dc.description.abstractOkadaic acid (OA) is one of the most potent marine biotoxins, causing diarrheal shellfish poisoning (DSP). The proliferation of microalgae that produce OA and its analogues is frequent, threatening human health and socioeconomic development. Several methods have been tested to remove this biotoxin from aquatic systems, yet none has proven enough efficacy to solve the problem. In this work, we synthesized and characterized low-cost composites and tested their efficacy for OA adsorption in saltwater. For the synthesis of the composites, the following starting materials were considered: chitosan of low and medium molecular weight (CH-LW and CH-MW, respectively), activated carbon (AC), and montmorillonite (MMT). Characterization by vibrational spectroscopy (FTIR), X-ray diffraction (XRD), and microscopy revealed differences in the mode of interaction of CH-LW and CH-MW with AC and MMT, suggesting that the interaction of CH-MW with MMT has mainly occurred on the surface of the clay particles and no sufficient intercalation of CH-MW into the MMT interlayers took place. Among the composites tested (CH-LW/AC, CH-MW/AC, CH-MW/AC/MMT, and CH-MW/MMT), CH-MW/MMT was the one that revealed lower OA adsorption efficiency, given the findings evidenced by the structural characterization. On the contrary, the CH-MW/AC composite revealed the highest average percentage of OA adsorption (53 ± 11%). Although preliminary, the results obtained in this work open up good perspectives for the use of this type of composite material as an adsorbent in the removal of OA from marine environments.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/toxins16040200pt_PT
dc.identifier.issn2072-6651
dc.identifier.slugcv-prod-4072912
dc.identifier.urihttp://hdl.handle.net/10400.1/20684
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationRemoval of paralytic shellfish toxins from marine aquatic systems.
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDiarrheic shellfish poisoningpt_PT
dc.subjectMarine biotoxinspt_PT
dc.subjectOkadaic acid removalpt_PT
dc.subjectComposite materials as adsorbents Key Contribpt_PT
dc.titleThe potential of Chitosan-Based composites for adsorption of diarrheic shellfish toxinspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRemoval of paralytic shellfish toxins from marine aquatic systems.
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND5ed/2022.08181.CEECIND%2FCP1729%2FCT0002/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue4pt_PT
oaire.citation.startPage200pt_PT
oaire.citation.titleToxinspt_PT
oaire.citation.volume16pt_PT
oaire.fundingStreamCEEC IND5ed
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLeal
person.familyNameMenalha Amado
person.familyNameLourenço
person.familyNameCristiano
person.givenNameJoana F.
person.givenNamePatrícia Sofia
person.givenNameJoão P.
person.givenNameMaria de Lurdes
person.identifier634248
person.identifier.ciencia-id7816-76B3-F5F5
person.identifier.ciencia-id8617-A360-B70A
person.identifier.ciencia-idF81F-A1F0-2A7C
person.identifier.ciencia-idE411-6006-5A01
person.identifier.orcid0000-0002-0336-346X
person.identifier.orcid0000-0002-7307-9210
person.identifier.orcid0000-0002-0501-6672
person.identifier.orcid0000-0002-9447-2855
person.identifier.ridAAD-1990-2019
person.identifier.ridA-7758-2008
person.identifier.ridG-2345-2012
person.identifier.scopus-author-id35096256100
person.identifier.scopus-author-id57195730600
person.identifier.scopus-author-id9238724800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaidF81F-A1F0-2A7C | João Paulo Gil Lourenço
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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