Effect of triolein addition on the solubility of capsanthin in supercritical carbon dioxide

Simple item page
dc.contributor.authorAraus, Karina A.
dc.contributor.authordel Valle, Jose M.
dc.contributor.authorRobert, Paz S.
dc.contributor.authorde la Fuente, Juan C.
dc.date.accessioned2024-01-10T13:12:34Z
dc.date.available2024-01-10T13:12:34Z
dc.date.issued2012
dc.description.abstractThis manuscript presents new phase equilibrium data for capsanthin in pure and triolein-entrained Supercritical (SC) carbon dioxide (CO2). The aim of the work was to determine the cosolvent effect of triolein on capsanthin by comparing solubility results in a ternary (CO2 + triolein + capsanthin) system and binary (CO2 + capsanthin) system at (313 or 333) K and (19 to 34) MPa. For this, authors isolated capsanthin from red pepper (Capsicum annuum L.) and tested it using a dynamic-analytical method in an apparatus with recirculation and online analysis of the CO2-rich phase. Within the experimental region, the solubility of capsanthin in pure SC-CO2 increased with system temperature at isobaric conditions and also increased with pressure at isothermal conditions. Solubilities ranged from a minimal of 0.65 mu mol/mol at 313 K and 19 MPa to a maximal of 1.97 mu mol/mol at 333 K and 32 MPa. The concentration of triolein in the ternary system was equivalent to that its solubility in pure SC-CO2 depending on system temperature and pressure conditions. Crossover pressure was determined experimentally at 29.6 MPa, below which solubility of triolein decreased with temperature (effect of density). Above the crossover pressure, solubility of triolein increased with temperature (vapor pressure effect). Values of solubility within this range were 0.16 mmol/mol at 19 MPa and 313 K to 0.41 mmol/mol at 33 MPa and 333 K. Independent of system temperature and pressure, capsanthin solubility in triolein-entrained SC-CO2 increased by a factor of about 3 (triolein-induced enhancement factor) as compared to its solubility in pure CO2, under similar conditions of pressure and temperature. The maximal solubility of capsanthin in SC-CO2 experimentally observed in this study was 5.27 mu mol/mol at 333 K and 33 MPa in the presence of 4.10 mmol/mol triolein. (C) 2012 Elsevier Ltd. All rights reserved.
dc.description.funderFONDECYT-Chile
dc.description.funderCONICYT-Chile
dc.fechaingreso.objetodigital27-03-2024
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jct.2012.02.030
dc.identifier.eissn1096-3626
dc.identifier.issn0021-9614
dc.identifier.urihttps://doi.org/10.1016/j.jct.2012.02.030
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78202
dc.identifier.wosidWOS:000303114800029
dc.information.autorucIngeniería;Araus K;S/I;168343
dc.information.autorucIngeniería;Del Valle J;S/I;57259
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final194
dc.pagina.inicio190
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.revistaJOURNAL OF CHEMICAL THERMODYNAMICS
dc.rightsacceso restringido
dc.subjectSolubility
dc.subjectCapsanthin
dc.subjectSupercritical carbon dioxide
dc.subjectCosolvent
dc.subjectTriolein
dc.subjectCorrelation
dc.subjectFATTY-ACID ESTERS
dc.subjectEXTRACTION
dc.subjectPRESSURE
dc.subjectPAPRIKA
dc.subjectLYCOPENE
dc.subjectSOLIDS
dc.subjectOIL
dc.subjectTRIACYLGLYCEROLS
dc.subjectASTAXANTHIN
dc.subjectCAROTENOIDS
dc.titleEffect of triolein addition on the solubility of capsanthin in supercritical carbon dioxide
dc.typeartículo
dc.volumen51
sipa.codpersvinculados168343
sipa.codpersvinculados57259
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2024-03-27. Effect of triolein addition on the solubility of capsanthin in supercritical carbon dioxide.pdf
Size:
3.16 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas