Acidogenic fermentation of Ulva in a fed-batch reactor system: tubular versus foliose biomass

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dc.check.date2026-01-08en
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisheren
dc.contributor.authorLawrence, Jamesen
dc.contributor.authorOliva, Armandoen
dc.contributor.authorMurphy, Jerry D.en
dc.contributor.authorLens, Piet N. L.en
dc.contributor.funderScience Foundatin Irelanden
dc.date.accessioned2025-01-22T09:32:10Z
dc.date.available2025-01-22T09:32:10Z
dc.date.issued2025-01-08en
dc.description.abstractThe present study proposes a biorefinery of the macroalgae Ulva, focusing on evaluating two different morphologies of the species (foliose and tubular) during acidogenic fermentation in fed-batch reactors. Stage 1 of the study evaluates lyophilised foliose and tubular Ulva, whilst Stage 2 analyses the impact of ulvan extraction on volatile fatty acids yield and changes in carbohydrate availability. Acetic, propionic, and butyric acids were produced from each substrate, with peak concentrations of total VFAs recorded at 2179.5 mg HAc/L (foliose Ulva) and 2029.3 mg HAc/L (tubular Ulva) when ulvan was present. After ulvan extraction, the acidogenic fermentation of the foliose morphotype was negatively affected, reaching at most 315.3 mg HAc/L. In contrast, the extraction showed no influence on the tubular morphotype, peaking at 2165.0 mg HAc/L. Additional variations were noted in the availability of carbohydrates in each substrate during the acidogenic fermentation process. The ulvan-extracted tubular morphotype exhibited the highest peak in carbohydrate concentration (9.8 g glucose/L), whilst the ulvan-extracted foliose morphotype yielded up to 8.5 g glucose/L. This study highlights the biorefinery potential of Ulva biomass, proposing a multiple cascading approach linking multiple energy and biomolecule applications to maximise the valorisation of the biomass.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid110580en
dc.identifier.citationLawrence, J., Oliva, A., Murphy, J. D. and Lens, P. N. (2024) 'Acidogenic fermentation of Ulva in a fed-batch reactor system: tubular versus foliose biomass', Enzyme and Microbial Technology, 184, 110580 (8pp). https://doi.org/10.1016/j.enzmictec.2024.110580en
dc.identifier.doihttps://doi.org/10.1016/j.enzmictec.2024.110580en
dc.identifier.endpage8en
dc.identifier.issn0141-0229en
dc.identifier.journaltitleEnzyme and Microbial Technologyen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/16868
dc.identifier.volume184en
dc.language.isoenen
dc.publisherElsevier Ltd.en
dc.relation.ispartofEnzyme and Microbial Technologyen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Professorship Programme::Targeted Research Professorship Programme/15/RP/2763/IE/Innovative Energy Technologies for Biofuels, Bioenergy and a Sustainable Irish Bioeconomy/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Spokes Programme::Fixed Call/16/SP/3829/IE/Sustainable Energy and Fuel Efficiency Spoke/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres Programme::Phase 2/12/RC/2302_P2/IE/MAREI_Phase 2/en
dc.rights© 2024, Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies. This manuscript version is made available under the CC BY-NC-ND 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectMacroalgaeen
dc.subjectUlvaen
dc.subjectUlvanen
dc.subjectAcidogenic fermentationen
dc.subjectBiorefineryen
dc.subjectVolatile fatty acidsen
dc.titleAcidogenic fermentation of Ulva in a fed-batch reactor system: tubular versus foliose biomassen
dc.typeArticle (peer-reviewed)en
oaire.citation.volume184en
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