TY - JOUR
T1 - Solubility of Β-carotene and co-solutes in supercritical carbon dioxide for ternary systems
T2 - Experimental data and correlation
AU - Zúñiga-Moreno, Abel
AU - Arenas-Quevedo, Miguel G.
AU - Elizalde-Solis, Octavio
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/6
Y1 - 2019/6
N2 - Ternary carbon dioxide – β-carotene – co-solute systems have been studied with the aim of examining the equilibrium solubility of β-carotene and co-solutes in carbon dioxide at supercritical conditions. Co-solutes were α-tocopherol, palmitic acid, and capsaicin. Experiments were performed by using a semi-continuous type apparatus from 10 to 36 MPa at 308.15 and 328.15 K. Binary β-carotene and co-solute mixture was initially fed to the cell at the same mass ratio (1:1). It was found that β-carotene shows the lowest solubility values for any system at 308.15 K. On the other hand, the co-solute that exhibits the highest solubility was palmitic acid at 328.15 K. Experimental data were modelled using the semi-empirical equations proposed by Chrastil, Kumar and Johnston, and Mendez-Santiago and Teja. Selectivity of carbon dioxide for each co-solute in the presence of β-carotene was also evaluated.
AB - Ternary carbon dioxide – β-carotene – co-solute systems have been studied with the aim of examining the equilibrium solubility of β-carotene and co-solutes in carbon dioxide at supercritical conditions. Co-solutes were α-tocopherol, palmitic acid, and capsaicin. Experiments were performed by using a semi-continuous type apparatus from 10 to 36 MPa at 308.15 and 328.15 K. Binary β-carotene and co-solute mixture was initially fed to the cell at the same mass ratio (1:1). It was found that β-carotene shows the lowest solubility values for any system at 308.15 K. On the other hand, the co-solute that exhibits the highest solubility was palmitic acid at 328.15 K. Experimental data were modelled using the semi-empirical equations proposed by Chrastil, Kumar and Johnston, and Mendez-Santiago and Teja. Selectivity of carbon dioxide for each co-solute in the presence of β-carotene was also evaluated.
KW - Carbon dioxide
KW - Palmitic acid
KW - Solubility
KW - Ternary systems
KW - α-Tocopherol
KW - β-carotene
UR - http://www.scopus.com/inward/record.url?scp=85062698468&partnerID=8YFLogxK
U2 - 10.1016/j.supflu.2019.03.005
DO - 10.1016/j.supflu.2019.03.005
M3 - Artículo
SN - 0896-8446
VL - 148
SP - 66
EP - 73
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
ER -