Приказ основних података о документу

dc.creatorBogdanović, Aleksandra
dc.creatorTadić, Vanja
dc.creatorRistić, Mihailo S.
dc.creatorPetrović, Slobodan
dc.creatorSkala, Dejan
dc.date.accessioned2021-03-10T13:08:06Z
dc.date.available2021-03-10T13:08:06Z
dc.date.issued2016
dc.identifier.issn0896-8446
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3344
dc.description.abstractSupercritical CO2 (SC-CO2) extraction of fenugreek seeds (Trigonella foenum-graecum L, Fabaceae) was analyzed using different pressure and temperature (16.6-33.4 MPa and, 30-50 degrees C), which corresponded to SC-CO2 density between 779 and 957 kg/m(3). The yield of extract as well as its composition were determined and analyzed for different solvent consumption defined as mass of used CO2 for extraction per mass of dry fenugreek seeds. A central composite design (CCD) combined with response surface methodology (RSM) was used to study the best extraction conditions which determined that 27.0 MPa, 42.6 degrees C, and 24.6 gCO(2)/g(dm), were the optimal conditions for isolation of total extract. The calculated yield of extract at these conditions defined by SC-CO2 density of 890 kg/m3 could be 2.57% based on fenugreek seed. Moreover, the best extraction conditions for obtaining extract which contains the maximal amount of sterols, or maximal amount of vitamin E or vitamin D were also analyzed. These RSM optimizations showed that at slightly lower pressure (22.8-24.8 MPa), temperature (39.9-42.0 degrees C) and consumption of SC-CO2 (19.0-19.7 gCO(2)/g(dm)) is followed by smaller amount of isolated extract but with maximum content of sterols (16.28%), or vitamin E or vitamin D (1.44% and 0.71%, respectively) at these conditions. Calculation of molar solubility of total extract, and apparent solubility of sterols, vitamin E and D in SC-CO2 was performed at different pressure and temperature. They were correlated to density of SC-CO2, temperature at which extractions were performed and Hildebrand solubility parameter of solvent and solubility parameter of compounds which are the main constituents of extract. These calculations also show that the highest molar solubility of total extract and apparent molar solubility of its constituents could be obtained using optimal density of SC-CO2 (830-890 kg/m(3)) defined by corresponding values of temperature and pressure (310-320 K and 20-25 MPa).en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45017/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Supercritical Fluids
dc.subjectSupercritical extractionen
dc.subjectFenugreeken
dc.subjectOptimizationen
dc.subjectRSMen
dc.subjectSolubilityen
dc.titleOptimization of supercritical CO2 extraction of fenugreek seed (Trigonella foenum-graecum L.) and calculating of extracts solubilityen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage307
dc.citation.other117: 297-307
dc.citation.rankM21
dc.citation.spage297
dc.citation.volume117
dc.identifier.doi10.1016/j.supflu.2016.07.010
dc.identifier.scopus2-s2.0-84989930955
dc.identifier.wos000382410800032
dc.type.versionpublishedVersion


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Приказ основних података о документу