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Integrated valorisation of protein- and lignin-rich streams from brewers’ spent grain through an electrified biorefinery approach for active food packaging applications

2026Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorMargioulas, Christos
dc.contributor.authorSarafidou, Mirva
dc.contributor.authorColucci, Giovana
dc.contributor.authorSantamaria-Echart, Arantzazu
dc.contributor.authorArgeiti, Chrysanthi
dc.contributor.authorParamithiotis, Spiros
dc.contributor.authorTsironi, Theofania
dc.contributor.authorKoutinas, Apostolis
dc.contributor.authorBarreiro, Filomena
dc.contributor.authorFilippi, Katiana
dc.date.accessioned2026-06-24T11:21:48Z
dc.date.available2026-06-24T11:21:48Z
dc.date.issued2026
dc.description.abstractThis work highlights the potential of valorising brewing industry side-streams for the development of bio-based food packaging materials. Brewers’ spent grain (BSG) was pre-treated using a non-thermal air-bubble plasma reactor as part of an electrified biorefinery, followed by enzymatic hydrolysis, enabling the separation of protein-, lignin-, and sugar-rich fractions. The residual solids (BSG-RS) were explored through three film-forming strategies, with the film formulation using the recovered protein concentrate emerging as the most efficient process. This route was further optimised by incorporating bacterial cellulose nanostructures, produced from the sugar-rich hydrolysate, as a reinforcing agent. Delignification of BSG-RS enabled the recovery of a lignin-rich fraction, which was used to enhance film functionality by testing two lignin formulations, namely alkaline lignin (AL) and lignin particles (LPs). The developed films exhibited excellent light-barrier properties (T600 < 2.3 %) and high antioxidant activity (>38.2 % inhibition). Structural characterization (scanning electron microscopy, thermogravimetric analysis, and X-ray diffraction) demonstrated distinct morphology-dependent interactions of the AL and LPs within the film matrix, leading to opposite effects on structural organisation and thermal stability. When applied to refrigerated salmon fillet, selected formulations performed comparably to PVC and extended shelf life by up to 4 days. Overall, the proposed approach effectively valorised all derived fractions of the BSG-based biorefinery towards functional food packaging, contributing to the sustainable utilisation of industrial side-streams into eco-friendly alternatives to conventional packaging.eng
dc.description.sponsorshipThe authors would like to acknowledge COST Action CA17128 “Establishment of a Pan-European Network on the Sustainable Valorisation of Lignin (LignoCOST)”. LignoCOST was supported by COST (European Cooperation in Science and Technology), in promoting interaction, exchange of knowledge and collaborations in the field of lignin valorisation. More information can be found at www.lignocost.eu. The authors would also like to acknowledge financial support from the BioSupPack Project under the European Union's Horizon 2020 Framework Programme under Grant agreement no. 101023685 entitled “Demonstrative process for the production and enzymatic recycling of environmentally safe, superior and versatile PHA-based rigid packaging solutions by plasma integration in the value chain (Acronym: BioSupPack Project). Additional funding for this project has been received from the Foundation for Science and Technology (FCT, Portugal) through national funds FCT/MCTES (PIDDAC) to CIMO UID/00690/2025 (10.54499/UID/00690/2025) and UID/PRR/00690/2025 (10.54499/UID/PRR/00690/2025); and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020). FCT for the Ph.D. research grant of G. Colucci (2021.05215.BD, DOI: 10.54499/2021.05215.BD) and the institutional scientific employment program contract of A. Santamaria-Echart.
dc.identifier.citationMargioulas, Christos; Sarafidou, Mirva; Colucci, Giovana; Santamaria-Echart, Arantzazu; Argeiti, Chrysanthi; Paramithiotis, Spiros; Tsironi, Theofania; Koutinas, Apostolis; Barreiro, Filomena; Filippi, Katiana (2026). Integrated valorisation of protein- and lignin-rich streams from brewers’ spent grain through an electrified biorefinery approach for active food packaging applications. Food Hydrocolloids. ISSN 0268-005X. 180, p. 1-15
dc.identifier.doi10.1016/j.foodhyd.2026.112854
dc.identifier.issn0268-005X
dc.identifier.urihttp://hdl.handle.net/10198/36930
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCIMO - Mountain Research Center - UID/PRR/00690/2025
dc.relationMountain Research Center - UID/00690/2025
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
dc.relationLignin-based Pickering Stabilizers for Innovative Cosmetic Applications
dc.relation.ispartofFood Hydrocolloids
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectBrewers' spent grain
dc.subjectBacterial cellulose
dc.subjectLignin
dc.subjectProtein
dc.subjectFood packaging
dc.titleIntegrated valorisation of protein- and lignin-rich streams from brewers’ spent grain through an electrified biorefinery approach for active food packaging applicationseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/PRR/00690/2025
oaire.awardNumberUID/00690/2025
oaire.awardNumberLA/P/0007/2020
oaire.awardNumber2021.05215.BD
oaire.awardTitleCIMO - Mountain Research Center - UID/PRR/00690/2025
oaire.awardTitleMountain Research Center - UID/00690/2025
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions - LA/P/0007/2020
oaire.awardTitleLignin-based Pickering Stabilizers for Innovative Cosmetic Applications
oaire.awardURIhttp://hdl.handle.net/10198/36356
oaire.awardURIhttp://hdl.handle.net/10198/35759
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//2021.05215.BD/PT
oaire.citation.endPage15
oaire.citation.startPage1
oaire.citation.titleFood Hydrocolloids
oaire.citation.volume180
oaire.fundingStreamCIMO
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamprojetos financiados com o apoio do Programa Operacional Regional do Norte (POR Norte/Norte 2020).
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameColucci
person.familyNameSantamaria-Echart
person.familyNameBarreiro
person.givenNameGiovana
person.givenNameArantzazu
person.givenNameFilomena
person.identifier.ciencia-id7C17-EC19-5F05
person.identifier.ciencia-id0C17-1E1F-2621
person.identifier.ciencia-id3418-47D5-5746
person.identifier.orcid0000-0002-8715-5843
person.identifier.orcid0000-0003-0107-7301
person.identifier.orcid0000-0002-6844-333X
person.identifier.ridL-9802-2014
person.identifier.scopus-author-id56725697700
person.identifier.scopus-author-id57188719717
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
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