Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization

Producción Científica

Detalles Bibliográficos
Autores: Bucci, Paula, Cantero Sposetti, Danilo Alberto, Casas González, Andrea Patricia, Marcos Naveira, José Enrique, Menalla, Enkeledo, Muñoz Torre, Raúl
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/79510
Acceso en línea:https://doi.org/10.1016/j.biombioe.2025.108399
https://uvadoc.uva.es/handle/10324/79510
Access Level:acceso abierto
Palabra clave:Brewer's spent grain
Continuous anaerobic digestion
Hydrothermal pretreatment
Microbial community dynamics
Methanogenic performance
Renewable energy recovery
23 Química
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spelling Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorizationBucci, PaulaCantero Sposetti, Danilo AlbertoCasas González, Andrea PatriciaMarcos Naveira, José EnriqueMenalla, EnkeledoMuñoz Torre, RaúlBrewer's spent grainContinuous anaerobic digestionHydrothermal pretreatmentMicrobial community dynamicsMethanogenic performanceRenewable energy recovery23 QuímicaProducción CientíficaBrewer’s spent grain (BSG), a by-product of the brewing industry, faces significant waste management challenges but holds potential as a substrate for biogas production via anaerobic digestion (AD). However, its lignocellulosic complexity limits microbial degradation and methane yield. In previous studies by our research group, various treatment strategies for BSG were explored, including approaches aimed at recovering high-value compounds. Building upon this foundation, the present work evaluates the potential of hydrothermal pretreatment to enhance methane production from BSG via AD. The novelty lies in the combination of a continuous hydrothermal pre- treatment reactor with meta-transcriptomic analysis of the anaerobic digestion process, enabling a direct cor- relation between operational performance and microbial functional shifts. Hydrothermal pretreatment was applied to partially hydrolyze cellulose and hemicellulose into fermentable sugars, improving biodegradability while minimizing the formation of inhibitory compounds. Results showed that hydrothermally pretreated BSG supported methane productions over 1500 mL CH4/L_reactor⋅day, markedly higher than the 100–500 mL CH4/ L_reactor⋅day observed for untreated BSG. Volatile solids degradation efficiency improved by 30 %, while methane content in biogas increased from 30 % to 65 %. Genomic analysis of the microbial consortium revealed enhanced activity of methanogenic archaea and fermentative bacteria associated with the increased methane production. This integrated approach not only disrupts lignocellulosic barriers more effectively but also provides deeper insights into microbial functionality, reinforcing hydrothermal pretreatment as a viable strategy for boosting biogas yield and advancing sustainable waste-to-energy solutions.BiOBreW project, which is funded by the European Union's Horizon MSCA 2021-PF-01 research and innovation programme, under grant agreement N° 101065428Junta de Castilla y León y del programa FEDER de la UE (UIC 379)Agencia Estatal de Investigación (AEI) (Project TED2021-129837B-C42)Junta de Castilla y León y del programa FEDER de la UE (CLU-2019-04)Ministerio de Ciencia, Innovación y Universidades de España (beca «Beatriz Galindo» BEAGAL18/00247)Elsevier2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1016/j.biombioe.2025.108399https://uvadoc.uva.es/handle/10324/79510reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://www.sciencedirect.com/science/article/pii/S0961953425008104info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:uvadoc.uva.es:10324/795102026-06-13T12:44:47Z
dc.title.none.fl_str_mv Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
title Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
spellingShingle Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
Bucci, Paula
Brewer's spent grain
Continuous anaerobic digestion
Hydrothermal pretreatment
Microbial community dynamics
Methanogenic performance
Renewable energy recovery
23 Química
title_short Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
title_full Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
title_fullStr Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
title_full_unstemmed Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
title_sort Hydrothermal pretreatment of brewer's spent grain: A pathway to sustainable biogas production and waste valorization
dc.creator.none.fl_str_mv Bucci, Paula
Cantero Sposetti, Danilo Alberto
Casas González, Andrea Patricia
Marcos Naveira, José Enrique
Menalla, Enkeledo
Muñoz Torre, Raúl
author Bucci, Paula
author_facet Bucci, Paula
Cantero Sposetti, Danilo Alberto
Casas González, Andrea Patricia
Marcos Naveira, José Enrique
Menalla, Enkeledo
Muñoz Torre, Raúl
author_role author
author2 Cantero Sposetti, Danilo Alberto
Casas González, Andrea Patricia
Marcos Naveira, José Enrique
Menalla, Enkeledo
Muñoz Torre, Raúl
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Brewer's spent grain
Continuous anaerobic digestion
Hydrothermal pretreatment
Microbial community dynamics
Methanogenic performance
Renewable energy recovery
23 Química
topic Brewer's spent grain
Continuous anaerobic digestion
Hydrothermal pretreatment
Microbial community dynamics
Methanogenic performance
Renewable energy recovery
23 Química
description Producción Científica
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.biombioe.2025.108399
https://uvadoc.uva.es/handle/10324/79510
url https://doi.org/10.1016/j.biombioe.2025.108399
https://uvadoc.uva.es/handle/10324/79510
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0961953425008104
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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