RT info:eu-repo/semantics/conferenceObject
T1 Sustainable lactic acid production from agrifood residues via subcritical water hydrolysis and nanofiltration
A1 Melgosa Gómez, Rodrigo
A1 Barea Gómez, Pedro
A1 Illera Gigante, Alba Ester
A1 Candela Gil, Helena
A1 Benito Román, Oscar
A1 Sanz Díez, Mª Teresa
A1 Beltrán Calvo, Sagrario
K1 Agrifood biomass valorization
K1 Lactic acid production
K1 Subcritical water hydrolysis
K1 Nanofiltration
AB The valorization of agri-food biomass offers a promising pathway for sustainable bioproductgeneration, aligning with circular economy principles. This study investigates the production oflactic 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 inhemicelluloses, such as corn stover, were subjected to SWH in the presence of heterogeneouscatalysts such as Yb 3+ salts [1] and Ca(OH)2) to maximize LA yield, achieving concentrations ofup to 14.4 g/L under optimized reaction conditions. The subsequent NF process employedmembranes with varying molecular weight cut-offs to assess LA recovery efficiency, flux, andrejection rates. Membrane fouling and the influence of operating parameters such as pressure andfeed concentration were also evaluated using synthetic solutions. The optimal NF configurationachieved good LA concentration with minimal co-product contamination, demonstrating thepotential for effective LA purification. This integrated approach not only addresses the disposalchallenges associated with agrifood residues but also provides a sustainable route for high-valueLA production. The findings underscore the feasibility of coupling SWH and membranetechnology for lactic acid production and recovery, contributing to resource-efficient agriculturalpractices and waste valorization.
YR 2025
FD 2025
LK https://hdl.handle.net/10259/12216
UL https://hdl.handle.net/10259/12216
LA eng
NO Póster presentado en: XVI International Scientific Agriculture Symposium "Agrosym 2025", Jahorina, Bosnia and Herzegovina, October 2-5, 2025
NO 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
DS Repositorio Institucional de la Universidad de Burgos
RD 03-oct-2026