2026-10-03T02:18:22Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/122162026-10-03T00:05:34Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4569

Melgosa Gómez, Rodrigo 357 600 0000-0003-2130-2422 Barea Gómez, Pedro 865 600 0000-0003-0525-327X Illera Gigante, Alba Ester 296 600 0000-0001-8321-5282 Candela Gil, Helena 924 600 0009-0000-8962-4837 Benito Román, Oscar 59 600 0000-0002-4418-0045 Sanz Díez, Mª Teresa 530 600 0000-0003-1799-3099 Beltrán Calvo, Sagrario 57 600 0000-0003-2559-3925 2026-10-02T10:48:18Z 2026-10-02T10:48:18Z 2025 https://hdl.handle.net/10259/12216 Póster presentado en: XVI International Scientific Agriculture Symposium "Agrosym 2025", Jahorina, Bosnia and Herzegovina, October 2-5, 2025 The valorization of agri-food biomass offers a promising pathway for sustainable bioproduct generation, aligning with circular economy principles. This study investigates the production of lactic acid (LA) through the subcritical water hydrolysis (SWH) of selected agrifood residues, followed by its separation using micro- (MF) and nanofiltration (NF). Agri-food residues rich in hemicelluloses, such as corn stover, were subjected to SWH in the presence of heterogeneous catalysts such as Yb 3+ salts [1] and Ca(OH)2) to maximize LA yield, achieving concentrations of up to 14.4 g/L under optimized reaction conditions. The subsequent NF process employed membranes with varying molecular weight cut-offs to assess LA recovery efficiency, flux, and rejection rates. Membrane fouling and the influence of operating parameters such as pressure and feed concentration were also evaluated using synthetic solutions. The optimal NF configuration achieved good LA concentration with minimal co-product contamination, demonstrating the potential for effective LA purification. This integrated approach not only addresses the disposal challenges associated with agrifood residues but also provides a sustainable route for high-value LA production. The findings underscore the feasibility of coupling SWH and membrane technology for lactic acid production and recovery, contributing to resource-efficient agricultural practices and waste valorization. AEI PID2022-136385OB-I00, PDC2022-133443-I00. Ó. Benito-Román contract is funded by AEI [RYC2023-043578-I] A.E. Illera postdoctoral contract is funded by JCyL [BU027P23] H. Candela-Gil and P. Barea predoctoral contracts are funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/1868/2022 and ORDEN EDU/109/2024, respectively. JCyL and ERDF BU027P23 application/pdf eng Agrifood biomass valorization Lactic acid production Subcritical water hydrolysis Nanofiltration Sustainable lactic acid production from agrifood residues via subcritical water hydrolysis and nanofiltration info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess THUMBNAIL Melgosa-Agrosym_2025.pdf.jpg Melgosa-Agrosym_2025.pdf.jpg IM Thumbnail image/jpeg 6446 https://riubu.ubu.es/bitstream/10259/12216/3/Melgosa-Agrosym_2025.pdf.jpg 5daf4f88ab9726eef2579f39346e5fb1 MD5 3 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/12216/2/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 2 ORIGINAL Melgosa-Agrosym_2025.pdf Melgosa-Agrosym_2025.pdf Póster application/pdf 5058376 https://riubu.ubu.es/bitstream/10259/12216/1/Melgosa-Agrosym_2025.pdf 7dd31aa28225b6f6cd5b93663e550788 MD5 1 10259/12216 oai:riubu.ubu.es:10259/12216 2026-10-03 02:05:34.718 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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