2026-05-15T20:47:30Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/95852024-10-04T00:05:17Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245
Ruiz Pérez, María Olga
503
600
0000-0003-0399-092X
Benito Román, Oscar
59
600
0000-0002-4418-0045
Beltrán Calvo, Sagrario
57
600
0000-0003-2559-3925
Sanz Díez, Mª Teresa
530
600
0000-0003-1799-3099
2024-10-03T08:07:37Z
2024-10-03T08:07:37Z
2024-08
0376-7388
http://hdl.handle.net/10259/9585
10.1016/j.memsci.2024.123054
In this work, a diafiltration-based process was investigated for the recovery of pectic oligosaccharides produced by subcritical water hydrolysis from onion skin waste. Four tubular ceramic membranes from 100 to 1 kDa were selected based on the molecular weight of the different galacturonic acid species present in the onion skin hydrolysate. All these membranes showed high selectivity towards pectic oligosaccharides, with low retention for free galacturonic acid, monosaccharides, organic acids, and other impurities. The 50 and 100 kDa membranes completely retained pectic oligosaccharides with a molecular weight exceeding 80 kDa, accounting for approximately 30 % of the initial pectic oligosaccharides in the hydrolysate. However, the purification rate was significantly slower using the 50 kDa membrane due to the increased cake layer resistance. Furthermore, it was examined a fractionation/purification cascade involving sequential diafiltration stages using 100, 10, and 1 kDa membranes at 25 °C, TMP = 1 bar, and a crossflow velocity of 1.5 m s−1. Approximately 87 % of the initial pectic oligosaccharides were successfully recovered and purified in the retentates, highlighting their potential for diverse applications due to their narrow molecular weight distribution, while phenolic compounds and other valuable low molecular weight molecules were recovered in the final permeate.
This work was supported by the Agencia Estatal de Investigación [grant numbers PID2020-116716RJ-I00 , PDC2022-133443-I00 , PID2022-136385OB-I00 ] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number BU027P23 ]. Benito Román post-doctoral contract was funded by the Agencia Estatal de Investigación through project PID2020–116716RJ-I00 .
application/pdf
eng
Elsevier
Journal of Membrane Science. 2024, V. 708, 123054
https://doi.org/10.1016/j.memsci.2024.123054
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116716RJ-I00/ES/TECNOLOGIAS DE FLUIDOS PRESURIZADOS PARA LA VALORIZACION DE SUBPRODUCTOS DE LA INDUSTRIA AGROALIMENTARIA: RECUPERACION DE PECTINA Y OTROS COMPUESTOS BIOACTIVOS DE ALTO VALOR/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/PDC2022-133443-I00/ES/Diseño de un prototipo para la extracción de bioproductos con agua subcrítica/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/PID2022-136385OB-I00/ES/NUEVAS ESTRATEGIAS PARA LA PRODUCCION DE ACIDO LACTICO DE SEGUNDA GENERACION EMPLEANDO TECNOLOGIAS EMERGENTES BASADAS EN FLUIDOS PRESURIZADOS/
info:eu-repo/grantAgreement/Junta de Castilla y León//BU027P23//Tecnologías sostenibles de fluidos presurizados para valorizar subproductos de la industria agroalimentaria ricos en proteínas: nuevas estrategias, escalado y análisis tecno-económico y medioambiental/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Pectic oligosaccharide fractionation
Diafiltration purification
Membrane fouling
Onion skin byproduct
Green technologies
Ingeniería química
Biotecnología
Chemical engineering
Biotechnology
Fractionation and refining of pectic oligosaccharides derived from onion skins through continuous feed diafiltration
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Journal of Membrane Science
708
123054
THUMBNAIL
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Datos complementarios
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10259/9585
oai:riubu.ubu.es:10259/9585
2024-10-04 02:05:17.599
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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