2026-05-05T04:14:58Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/60842024-04-16T12:31:41Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

Niknam, S. Mehdi 398b7b89-81fb-4a4c-adca-1b6f510df6c0 600 Kashaninejad, Mansoore 19b83798-8191-4640-90af-544afd7ca648 500 Escudero Barbero, Isabel 161 500 0000-0001-6143-1582 Sanz Díez, Mª Teresa 530 500 0000-0003-1799-3099 Beltrán Calvo, Sagrario 57 500 0000-0003-2559-3925 Benito Moreno, José Manuel 58 500 0000-0001-8899-0448 2021-10-27T12:56:55Z 2021-10-27T12:56:55Z 2021-09 0959-6526 http://hdl.handle.net/10259/6084 10.1016/j.jclepro.2021.128340 Olive pomace, a solid residue generated during olive oil production process and a rich source of phenolic compounds, was dried and defatted to obtain a pomace oil rich in monounsaturated fatty acids with 64% oleic acid. The defatted pomace was further treated by ultrasound-assisted extraction (UAE). The optimal phenol extraction conditions of 10 min, 40% amplitude and 4% (w/v) solid:solvent ratio, yielded to 14.70 mg/g total phenols, 2.48 mg/g total flavonoids and 0.924 mmol Trolox/g antioxidant activity. In order to purify valuable biophenols, two polymeric resins (XAD4 and XAD16) and two activated charcoals (NPAC and GAC) were tested as adsorbents using a magnetic stirrer and an incubator shaker. XAD16 (100 g/L) in magnetic stirrer showed the optimal adsorption ratios with 74.36%, 39.25%, 68.79% and 100% for total phenols, hydroxytyrosol, tyrosol and oleuropein, respectively. Desorption using acidified 50% (v/v) ethanol-water at pH = 2.3 proved 57.65% recovery of total phenols, 19.27% of hydroxytyrosol and 45.73% of tyrosol. These results indicate that extraction and selective purification of biophenols from olive pomace can be achieved by the proposed UAE using 50% v/v ethanol-water as solvent, followed by adsorption-desorption stages with the XAD16 polymeric resin. Spanish Agencia Estatal de Investigación [grant number PID2019-104950RB-I00/AEI/10.13039/ 501100011033] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant numbers BU301P18 and BU050P20]. application/pdf eng Elsevier Journal of Cleaner Production. 2021, V. 316, 128340 https://doi.org/10.1016/j.jclepro.2021.128340 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104950RB-I00/ES/VALORIZACION DE SUBPRODUCTOS MARINOS MEDIANTE TECNOLOGIAS DE FLUIDOS SUB- Y SUPERCRITICOS PARA LA OBTENCION DE BIOCOMPUESTOS VALIOSOS info:eu-repo/grantAgreement/Junta de Castilla y León//BU301P18 info:eu-repo/grantAgreement/Junta de Castilla y León//BU050P20 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Olive pomace Ultrasound-assisted extraction Response surface methodology Phenolics adsorption-desorption Ingeniería química Chemical engineering Valorization of olive mill solid residue through ultrasound-assisted extraction and phenolics recovery by adsorption process info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Journal of Cleaner Production 316 128340 THUMBNAIL Niknam-jcp_2021.pdf.jpg Niknam-jcp_2021.pdf.jpg IM Thumbnail image/jpeg 5078 https://riubu.ubu.es/bitstream/10259/6084/4/Niknam-jcp_2021.pdf.jpg d335c9e2cf8276b0ddab05c94a5a08e7 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/6084/3/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/6084/2/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 2 ORIGINAL Niknam-jcp_2021.pdf Niknam-jcp_2021.pdf application/pdf 2209685 https://riubu.ubu.es/bitstream/10259/6084/1/Niknam-jcp_2021.pdf 5804ad0d26f470d2ac6da6cf7a252ef6 MD5 1 10259/6084 oai:riubu.ubu.es:10259/6084 2024-04-16 14:31:41.794 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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