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Polyhydroxyalkanoates production from a waste-derived feedstock driven by the reactor operating conditions

2024-04-20Artigo científico Acesso aberto
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dc.contributor.authorGuarda, Eliana C.
dc.contributor.authorAmorim, Catarina L.
dc.contributor.authorPasculli, Gabriele
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorGalinha, Claudia F.
dc.contributor.authorDuque, Anouk F.
dc.contributor.authorReis, Maria A. M.
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.institutionUCIBIO - Applied Molecular Biosciences Unit
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.pblElsevier
dc.date.accessioned2024-09-23T22:21:23Z
dc.date.available2024-09-23T22:21:23Z
dc.date.issued2024-04-20
dc.descriptionFunding Information: This work was financed by national funds from FCT - Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects Beer2BioPol-PTDC/BTA-BTA/31746/2017, UIDP/04378/2020 and UIDB/04378/2020 of UCIBIO, LA/P/0140/2020 of i4HB, and UIDB/50016/2020 of CBQF. This work was also supported by LAQV, which is financed by national funds from FCT/MCTES ( LA/P/0008/2020, UIDP/50006/2020 and UIDB/50006/2020). The authors gratefully acknowledge FCT for the financial support through the PhD grants SFRH/BD/136300/2018 + COVID/BD/153202/2023 (E.C. Guarda), Scientific Employment Stimulus - Individual Call (2022.04601.CEECIND –C.F. Galinha) and program DL 57/2016 – Norma transitória (C.L. Amorim and A.F. Duque). Publisher Copyright: © 2024 The Author(s)
dc.description.abstractIn the last years, the production of plastics at large-scale has been an issue of great concern due to their environmental and health impacts. Biobased and biodegradable plastics, such as polyhydroxyalkanoates (PHA), have emerged as a possible more ecological and sustainable alternative to those conventional plastics. PHA can be produced by mixed microbial cultures (MMC) from waste-based feedstocks. This work aimed to maximize the PHA production from fermented brewer's spent grain by selecting an efficient PHA-accumulating MMC, applying different organic loading rates (OLR, 45 or 60 CmmolFP/(L.d)) and sludge retention times (SRT, 4 or 2 days). Additionally, the biomass reactivation capacity after storage was evaluated. The global PHA productivity depends on the operating conditions, achieving its maximum (3.55 ± 0.8 gPHA/(L.d)) at the highest OLR and SRT tested. After storage, the global PHA productivity was similar to the one achieved before the starvation period. Depending on the operating conditions, the microbiome has its own bacterial composition signature containing various PHA-producers genera (e.g., Acidovorax, Amaricoccus, Brevundimonas, Leucobacter, Leadbetterella and Thauera) that persisted over time, albeit at different relative abundancies. A comprehensive overview of PHA production with data on system performance and microbiome is presented, which thereby can further contribute to the upscale of such valorisation processes.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent11
dc.format.extent3335351
dc.identifier.doi10.1016/j.jclepro.2024.141810
dc.identifier.issn0959-6526
dc.identifier.otherPURE: 99760419
dc.identifier.otherPURE UUID: c01341f1-96b9-4fea-8d11-1e1a0a475d19
dc.identifier.otherScopus: 85189652347
dc.identifier.otherWOS: 001222756600001
dc.identifier.urihttp://hdl.handle.net/10362/172263
dc.identifier.urlhttps://www.scopus.com/pages/publications/85189652347
dc.language.isoeng
dc.peerreviewedyes
dc.subjectBiomass reactivation
dc.subjectMicrobiome
dc.subjectMixed microbial cultures (MMC)
dc.subjectPolyhydroxyalkanoates
dc.subjectProductivity
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectGeneral Environmental Science
dc.subjectStrategy and Management
dc.subjectIndustrial and Manufacturing Engineering
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titlePolyhydroxyalkanoates production from a waste-derived feedstock driven by the reactor operating conditionsen
dc.title.subtitleThe role of biomass microbiome and its reactivation capacityen
dc.typejournal article
degois.publication.titleJournal of Cleaner Production
degois.publication.volume451
dspace.entity.typePublication
rcaap.rightsopenAccess

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