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    • SCIENTIFIC PRODUCTION
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    • Dpto. Ingeniería Química y Tecnología del Medio Ambiente
    • DEP48 - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/66808

    Título
    Hydraulic retention time as an operational tool for the production of short-chain carboxylates via anaerobic fermentation of carbohydrate-rich waste
    Autor
    Aboudi, Kaoutar
    Greses, Silvia
    González Fernández, María Cristina
    Año del Documento
    2023
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    Molecules, 2023, Vol. 28, Nº. 18, 6635
    Abstract
    The carboxylate platform is a sustainable and cost-effective way to valorize wastes into biochemicals that replace those of fossil origin. Short-chain fatty acids (SCFAs) are intermediates generated during anaerobic fermentation (AF) and are considered high-value-added biochemicals among carboxylates. This investigation aimed to produce SCFAs through the AF of sugar beet molasses at 25 °C and semi-continuous feeding mode in completely stirred tank reactors. A particular focus was devoted to the role of hydraulic retention time (HRT) variation in SCFAs production and distribution profile. The highest SCFAs concentration (44.1 ± 2.3 gCOD/L) was reached at the HRT of 30 days. Caproic acid accounted for 32.5–35.5% (COD-concentration basis) at the long HRTs of 20 and 30 days due to the carbon chain elongation of shorter carboxylic acids. The findings of this study proved that HRT could be used to steer the anaerobic process toward the targeted SCFAs for specific uses. Furthermore, the successful operation at low-temperature conditions (i.e., 25 °C) makes the process economically promising.
    Materias (normalizadas)
    Anaerobic fermentation
    Hydraulics
    Hidráulica
    Short Chain Fatty Acids
    Fatty acids
    Acidos grasos
    Carboxylates
    Carbohydrates
    Glúcidos
    Chain elongation
    Materias Unesco
    3303 Ingeniería y Tecnología Químicas
    3308 Ingeniería y Tecnología del Medio Ambiente
    2306 Química Orgánica
    2302.12 Fermentación
    ISSN
    1420-3049
    Revisión por pares
    SI
    DOI
    10.3390/molecules28186635
    Patrocinador
    Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (grant CEX2019-000931-M)
    Version del Editor
    https://www.mdpi.com/1420-3049/28/18/6635
    Propietario de los Derechos
    © 2023 The authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/66808
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • DEP48 - Artículos de revista [265]
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