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dc.contributor.authorKashaninejad, Mansoore
dc.contributor.authorSanz Díez, Mª Teresa 
dc.contributor.authorRamos Rodríguez, Cipriano 
dc.contributor.authorBeltrán Calvo, Sagrario 
dc.contributor.authorBlanco, Beatriz
dc.contributor.authorAlonso Riaño, Patricia
dc.contributor.authorTrigueros Andrés, Ester 
dc.date.accessioned2021-08-24T08:40:30Z
dc.date.available2021-08-24T08:40:30Z
dc.date.issued2021
dc.identifier.urihttp://hdl.handle.net/10259/5855
dc.descriptionPóster presentado en: 18th European Meeting on Supercritical Fluids. 2021, 4-6 de mayo, Burdeos (online)es
dc.description.abstractOlive leaves (OL) are one of the by-products generated during the pruning of olives tress and during separation process in olive processing. OL are lignocellulosic biomass with important amounts of extractives and lignin (Table 1). OL have a significant amount of phenolic compounds and other bioactive compounds such as mannitol. Mannitol is a sugar alcohol with reduced caloric value compared with other sugars with different applications in the food and pharmaceutical industries due to its functional properties. Mannitol production depends on the sorbitol market since is obtained as a by-product in the catalytic hydrogenation process of sorbitol production. Therefore, alternative process to obtain mannitol from natural sources avoiding the use of high temperatures would be advantageous to obtain this polyol. In this work, valorization of OL was performed by subcritical water extraction in a batch pilot plant with 20 L capacity where 3 kg of the dry OL were put in contact with subcritical water at a medium temperature of 181.1  0.6 ºC. Figures 1 and 2 show the extraction curves of mannitol and some of the main polyphenols compounds identified by HPLC/DAD. By SW treatment, mannitol extraction yield was nearly 100 % after 20 min of extraction (OL has 99  1 mg mannitol/ g dry OL). The main PC extracted by SW was oleuropein nearly 1.5 mg/g dry OL, but also verbascoside and luteolin-7-glucoside. TPC of SW extracts was 33 mg of gallic acid equivalent/g dry OL.en
dc.description.sponsorshipJCyL and ERDF for financial support of projects BU301P18 and BU050P20 and to Agencia Estatal de Investigación for project funding PID2019-104950RB-I00/AEI/10.13039/501100011033. To the company Hiperbaric through project BIOLIGNO (10/16/BU/0017), funded by ERDF and JCyL through ICE. To JCyL and ESF for E. Trigueros and P. Alonso-Riaño predoctoral contracts and for the contracts of D. Benito-Bedoya and D.M. Aymara-Caiza trough the YEI program.es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.subject.otherIngeniería químicaes
dc.subject.otherChemical engineeringen
dc.titleBioactive compounds extraction from olive leaves by subcritical water extractionen
dc.typeinfo:eu-repo/semantics/conferenceObjectes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/BU301P18
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/BU050P20
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/PID2019-104950RB-I00/AEI/10.13039/501100011033
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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