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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/7442

    Título
    Valorization of brewer’s spent grain by furfural recovery/removal from subcritical water hydrolysates by pervaporation
    Autor
    Alonso Riaño, PatriciaAutoridad UBU Orcid
    Illera Gigante, Alba EsterAutoridad UBU Orcid
    Amândio, Mariana S.T.
    Xavier, Ana María Rebelo Barreto
    Beltrán Calvo, SagrarioAutoridad UBU Orcid
    Sanz Díez, Mª TeresaAutoridad UBU Orcid
    Publicado en
    Separation and Purification Technology. 2023, V. 309, 123008
    Editorial
    Elsevier
    Fecha de publicación
    2023-03
    ISSN
    1383-5866
    DOI
    10.1016/j.seppur.2022.123008
    Resumo
    This work is focused on the development of a sustainable process for the valorisation of the main by-product generated in the brewing industry, the brewer’s spent grain (BSG). A two-step process combining subcritical water treatment and pervaporation (PV) was proposed to hydrolyse the hemicelluloses fraction of this lignocellulosic biomass and further removal/recovery of some of the degradation products of sugars by using two different organophilic membranes, polydimethylsiloxane (PDMS) and polyoctilmethylsiloxane (POMS) membranes. Specifically, furfural is the dehydration product of pentoses and it is one of the top biomass-based chemicals being an important platform chemical. For synthetic binary mixtures, lower total permeation flux but higher enrichment factors for furfural were determined for POMS. When dealing with subW hydrolysates, POMS membranes yielded the highest furfural recovery, 94.1 %, with permeate concentrations as high as 40 g⋅L1 . Furthermore, it was assessed that PV is a suitable detoxification method that yielded a retentate nearly free of furfural allowing its use as growth media in the opposite to the subW hydrolysate with inhibitory furfural concentrations for microbial bioprocesses.
    Palabras clave
    Brewer's spent grain
    Subcritical water hydrolysates
    Pervaporation
    PDMS/POMS membranes
    Furfural
    Materia
    Ingeniería química
    Chemical engineering
    Biología
    Biology
    URI
    http://hdl.handle.net/10259/7442
    Versión del editor
    https://doi.org/10.1016/j.seppur.2022.123008
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    Attribution-NonCommercial-NoDerivatives 4.0 Internacional
    Documento(s) sujeto(s) a una licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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    Alonso-spt_2023.pdf
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