2026-05-16T15:18:18Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/490582021-10-14T20:46:28Zcom_10324_1173com_10324_931com_10324_894col_10324_1371

Pazo Cepeda, María Victoria Aspromonte, Soledad Guadalupe Alonso Sánchez, Gloria Esther 2021-10-14T06:54:50Z 2021-10-14T06:54:50Z 2021 Food Bioscience, 2021, vol. 44, part A, 101374 2212-4292 https://uvadoc.uva.es/handle/10324/49058 10.1016/j.fbio.2021.101374 Producción Científica Pressurized water was tested as solvent for the hydrolysis and extraction of Ferulic acid (FA) and feruloylated arabinoxylooligosaccharides (F-AXOS) from destarched wheat bran (DWB). Results were dependent on the severity factor of the process (combination of temperature and time), obtaining the maximum extraction yields at 200°C and 3.5 min. 78% of the total FA was successfully extracted, being 17% in its free form and the rest, covalent ester-bounded to arabinoxylans. Under such conditions, 80% of the arabinoxylans are extracted with a degree of FA esterification of 1.34 g FA/100 g AXOS, and an average molecular weight of 1,3·104 Da. Pressurized Microwave Assisted Extraction was also studied to evaluate potential intensification of the process using microwaves. However, no significant differences were observed with the microwave heating. Residual solid after extraction was mainly composed by lignin and cellulose (56% and 21%, respectively) showing that hot compressed water technology can be integrated in the first steps of a biorefinery for the total valorization of the wheat bran. Ministerio de Economía, Industria y Competitividad - Fondo Europeo de Desarrollo Regional (project CTQ2015-64892-R) application/pdf eng Elsevier info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2021 Elsevier Attribution-NonCommercial-NoDerivatives 4.0 Internacional Ferulic acid Ácido ferúlico Wheat bran Salvado de trigo Arabinoxylan Arabinoxilano Microwaves Microondas Extraction of ferulic acid and feruloylated arabinoxylo-oligosaccharides from wheat bran using pressurized hot water info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S2212429221004995?via%3Dihub SI