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Insect-based chitin and chitosan from whole body sources and rearing by-products: extraction, physicochemical, structural and bioactivity characterisation

2025-01-14Journal Restricted access
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datacite.subject.fosCiências Médicas
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorNavarro, Pedro
dc.contributor.authorRibeiro, José Carlos Reis
dc.contributor.authorLuís, Ângelo Filipe Santos
dc.contributor.authorDomingues, Fernanda
dc.contributor.authorAnjos, Ofélia
dc.contributor.authorCunha, Luis
dc.date.accessioned2025-08-22T10:18:31Z
dc.date.available2025-08-22T10:18:31Z
dc.date.issued2025-01-14
dc.description.abstractFractionation of edible insects and their rearing by-products can lead to expanded industrial applications and extraction of value-added products. The main goal of this study was to extract chitin and synthesise chitosan from three different insect sources – Tenebrio molitor larvae, adult Acheta domesticus and A. domesticus rearing by-products (legs and wings). Furthermore, the physicochemical, structural, and bioactive properties of insectderived chitin and chitosan were characterised and compared to commercial crustacean-based samples. Chitin was isolated from defatted sources through chemical hydrolysis followed by decolourisation and was deacetylated with a strong alkaline solution to synthesise chitosan. Notably, A. domesticus rearing by-products yielded the highest chitin and chitosan content. Chitin and chitosan derived from insects exhibited physicochemical and structural characteristics consistent with the α-polymorphic form, similar to the commercial samples. Differences were found in surface morphology, with insect-derived samples presenting large and irregular flakes and porosity, while the crustacean-derived samples presented irregularly arranged fibres and a more regular and smoother surface. As for antioxidant activity, although all chitosan samples demonstrated poor DPPH radical scavenging activity, this study showed for the first time that insect-derived chitosan presents lipid peroxidation inhibition ability. All chitosan samples presented antimicrobial activity against different pathogenic bacteria, with K. pneumoniae being the most susceptible strain. Nevertheless, there is potential for enhancement of the biological properties through modifications on the molecular weight and deacetylation degree. This research introduces the potential of cricketrearing by-products as sustainable sources of chitosan with functional bioactive properties.por
dc.identifier.doi10.1163/23524588-00001342
dc.identifier.urihttp://hdl.handle.net/10400.6/18914
dc.language.isoeng
dc.peerreviewedyes
dc.relationForest Research Centre
dc.relationResearch Center in Natural Resources, Environment and Society
dc.relationCICS-UBI
dc.relationGreenUPorto - Research Center in Sustainable Agri-food Production
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAntimicrobial
dc.subjectBioactivity
dc.subjectCircular Economy
dc.subjectEntomophagy
dc.subjectLipid Peroxidation
dc.titleInsect-based chitin and chitosan from whole body sources and rearing by-products: extraction, physicochemical, structural and bioactivity characterisationeng
dc.typejournal
dspace.entity.typePublication
oaire.awardTitleForest Research Centre
oaire.awardTitleResearch Center in Natural Resources, Environment and Society
oaire.awardTitleCICS-UBI
oaire.awardTitleGreenUPorto - Research Center in Sustainable Agri-food Production
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00239%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00681%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Programático/UIDP%2F00709%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05748%2F2020/PT
oaire.citation.titleJournal of Insects as Food and Feed
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamConcurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Programático
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameNavarro
person.familyNameRibeiro
person.familyNameLuís
person.familyNameDomingues
person.familyNameAnjos
person.familyNameCunha
person.givenNamePedro
person.givenNameJosé Carlos Reis
person.givenNameÂngelo Filipe Santos
person.givenNameFernanda
person.givenNameOfélia
person.givenNameLuis
person.identifier.ciencia-id6417-59F6-506B
person.identifier.ciencia-id3D14-798B-65D3
person.identifier.ciencia-id6514-0498-3E8F
person.identifier.ciencia-idC21D-D8C7-3037
person.identifier.gsidhttps://scholar.google.com.br/citations?user=3fGWGbI3MbgC&hl=pt-PT&oi=ao
person.identifier.orcid0000-0001-8826-4913
person.identifier.orcid0000-0003-2106-7979
person.identifier.orcid0000-0003-0712-6522
person.identifier.orcid0000-0002-9540-0853
person.identifier.orcid0000-0003-0267-3252
person.identifier.orcid0000-0002-4590-7533
person.identifier.ridN-7295-2013
person.identifier.ridG-2808-2012
person.identifier.scopus-author-id55851941635
person.identifier.scopus-author-id10139481400
person.identifier.scopus-author-id23395659700
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
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