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    Citas

    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/59685

    Título
    Biotic and abiotic insights into the storage of food waste and its effect on biohydrogen and methane production potential
    Autor
    García Depraect, OctavioAutoridad UVA Orcid
    Mirzazada, Inji
    Martínez Mendoza, Leonardo JoséAutoridad UVA
    Regueira Marcos, Lois
    Muñoz Torre, RaúlAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Water Process Engineering, 2023, vol. 53, 103840
    Zusammenfassung
    The present study investigated the physicochemical and microbiological changes occurring during the storage of simulated restaurant food waste (FW) and how such changes affected its biohydrogen and biogas production potential. FW was stored for 72 h in a closed atmosphere under two different scenarios: i) without and ii) with inoculation of a mixed microbial culture harboring lactic acid bacteria (LAB). Both storage scenarios resulted in similar biotic and abiotic changes in FW. Particularly, FW was pre-acidified and pre-hydrolyzed to some extent during the storage, resulting in a feedstock enriched in LAB (≈ 95 % total relative abundance) and lactate (10.5–12.3 g/L, 87.0–90.5 % selectivity). Biochemical hydrogen potential tests revealed that the use of stored FW resulted in similar or even higher hydrogen production efficiencies compared to that of non-stored FW, achieving up to 60 NmL H2/g VS added and a maximum volumetric hydrogen production rate of 9.7 NL H2/L-d. Metabolically, the conversion of lactate into hydrogen was crucial regardless of the use of non-stored or stored FW, albeit the presence of fermentable carbohydrates in the substrate was also essential either to produce lactate or to co-produce extra hydrogen. On the contrary, biochemical methane potential tests showed that the biogas production potential of FW was not affected by storage, yielding on average 400 NmL CH4/g VS added and revealing that lactate oxidation to methane precursors represented an important step in FW biomethanization.
    Materias (normalizadas)
    Microbiology
    Biochemistry
    Materias Unesco
    3303.03 Procesos Químicos
    2414 Microbiología
    Palabras Clave
    Biogas
    Hydrogen
    Lactate
    Storage
    Biogás
    Hidrógeno
    Lactato
    Almacenamiento
    ISSN
    2214-7144
    Revisión por pares
    SI
    DOI
    10.1016/j.jwpe.2023.103840
    Patrocinador
    European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 894515
    Ministerio de Ciencia e Innovación - AEI and European Union NextGenerationEU/PRTR (RYC2021-034559-I)
    Junta de Castilla y León and the European FEDER Programme (CLU 2017-09, CL-EI-2021-07 y UIC 315)
    Patrocinador
    info:eu-repo/grantAgreement/EC/H2020/894515
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S2214714423003598?via%3Dihub
    Propietario de los Derechos
    © 2023 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/59685
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • IPS - Artículos de revista [157]
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    Dateien zu dieser Ressource
    Nombre:
    Biotic-and-abiotic-insights.pdf
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