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dc.creatorLukic, Ivana
dc.creatorPajnik, Jelena
dc.creatorTadic, Vanja
dc.creatorMilovanovic, Stoja
dc.date.accessioned2022-06-06T08:14:12Z
dc.date.available2022-06-06T08:14:12Z
dc.date.issued2022
dc.identifier.issn2212-9820
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/5146
dc.description.abstractThe aim of the present study was the utilization of supercritical CO2 as a green medium in various processes: starch gel drying, supercritical extraction from hemp seed flour (SCE process), hemp seed oil (HSO) impregnation (SCI process), as well as integrated process of hemp seed flour (HSF) extraction and starch gels impregnation (SCE-SCI process) for development of added-value materials that can be used as phytopharmaceuticals. Optimization of starch aerogels was performed by variation of temperature (35 and 45 °C) and pressure (8, 10, and 20 MPa) in order to obtain materials with high porosity, which will enable maximal loading capacity for hemp seed extracts. Proposed scCO2-assisted processes of SCE from HSF, SCI and SCE-SCI were performed at pressure of 30 MPa and temperature of 60 °C. It was shown that conditions of starch gel drying significantly influenced material morphology (porosity was in a range of 48-82%, and specific surface area of 71-208 m2/g), which consequently determined aerogel loading capacity. FTIR analysis confirmed that scCO2 did not have effect on polymer composition nor it remained in polymer after drying process. The highest loading of both HSO and HSF extract (24.9% and 29.78%, respectively) was achieved when aerogel obtained at 10 MPa and 45 °C was tested as a carrier. Furthermore, chemical analysis showed that both HSO and HSF extract are rich in unsaturated fatty acids especially linoleic acid (54-59%) and α-linolenic acid (15-18%). These essential fatty acids have well-established health benefits including protection against cardiovascular, neurodegenerative and inflammatory diseases.sr
dc.language.isoensr
dc.publisherElsevier Ltdsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200287/RS//sr
dc.rightsrestrictedAccesssr
dc.sourceJournal of CO2 Utilizationsr
dc.subjectAerogelsr
dc.subjectHemp seedsr
dc.subjectStarchsr
dc.subjectSupercritical carbon dioxidesr
dc.subjectSupercritical CO2impregnationsr
dc.subjectSupercritical fluid extractionsr
dc.titleSupercritical CO2-assisted processes for development of added-value materials: Optimization of starch aerogels preparation and hemp seed extracts impregnationsr
dc.typearticlesr
dc.rights.licenseARRsr
dc.citation.rankM21~
dc.citation.spage102036
dc.citation.volume61
dc.identifier.doi10.1016/j.jcou.2022.102036
dc.identifier.scopus2-s2.0-85130270288
dc.identifier.wos00079807120000
dc.type.versionpublishedVersionsr


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