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This study investigated the supercritical CO2 extraction of oils from capuchin (Tropaeolum majus) seeds (4.34% moisture content) and leaves (5.26% moisture content) and analyzed the effects of varying temperature and pressure conditions. The extraction yields were 3% for the seeds and 2% for the leaves. The seed extracts were rich in oleic, linoleic, and palmitic fatty acids, whereas the leaf extracts contained a high concentration of octacosanol (73.37%). Kinetic analysis revealed distinct mass transfer mechanisms during extraction, and the Sovová model effectively described the extraction kinetics, showing good agreement with experimental data (ADD% < 4%). An analysis of variance (ANOVA) demonstrated the impact of temperature and pressure on the yields, with temperature being the most influential factor. The experimental conditions ranged from 22 to 28 MPa and from 313.15 to 333.15 K. This study contributes to the understanding of capuchin oil extraction and its potential applications in various fields, owing to the presence of bioactive compounds. [ABSTRACT FROM AUTHOR]

ABSTRACT New experimental data were measured for phase transition of the binary system CO2 + black sesame oil. A variable volume cell was employed using the static synthetic method in a temperature range of 303-333 K, pressures up to 20 MPa, and CO2 mass fractions between 0.12-0.39 g/g. For mass fractions > 0.39, phase transition data were not measured due to pressure limitations of the high-pressure system used. Vapour-liquid transitions (VLE) of bubble point (BP) were determined. Phase transition data of CO2 + black sesame oil were compared to reported data from the literature involving CO2 and similar oils. The trend of the phase transition behaviour between all systems compared was similar. Phase equilibrium data obtained experimentally were successfully modelled with the Peng-Robinson equation of state (PR-EoS) combined with the van der Waals mixing rule (PR-vdW2) and Wong-Sandler mixing rule (PR-WS). [ABSTRACT FROM AUTHOR]

• Phase Behavior Experimental data of the {CO 2 + Chloroform + PHBV} System at High-Pressures. • The experimental data were modeled with the PC-SAFT equation of state. • Thermodynamic data are of great relevance for encapsulation of active ingredients in PHBV. • The carbon dioxide acted as an antisolvent, precipitating the PHBV. ga1 Herein, the influence of HV (hydroxyvalerate) addition (8.0 and 8.7 wt% HV) on the PHBV (poly(3-hydroxybutyrate-co-3-hydroxyvalerate)) composition from the perspective of phase equilibrium in high-pressure {(CO 2 (1) + chloroform (2) + [PHBV - 8.0 wt%] (3) and (CO 2 (1) + chloroform (2) + [PHBV - 8.7 wt%] (3)} systems was examined using the static synthetic method with a visual variable-volume view cell at temperatures ranging from 303.15 to 333.15 K, pressures approximately 10 MPa, and different concentrations of PHBV (HV = 8.0 and 8.7 wt%) in chloroform (0.01 and 0.02 g.cm−3). Transitions of the solid-vapor-liquid (SVL) were observed. The experimentally determined phase transitions were successfully modeled using the PC-SAFT equation of state. [ABSTRACT FROM AUTHOR]