Supercritical CO2 extraction of pinocembrin from Lippia origanoides distillation residues. 2. Mathematical modeling of mass transfer kinetics as a function of substrate pretreatment

Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide

“…In this case, although the increasing operating temperature at the constant operating pressure can enhance the solute vapor pressure, which may improve the extraction of solute, it seems that the increasing operating temperature decreases the solvent power of SCCO 2 , resulting in the decrease of edible oil recovery from the SBE matrix. Moreover, the increasing operating temperature at the constant operating pressure also decreases the density of SCCO 2 , giving a negative effect on the overall oil extraction yield [ 27 , 30 , 31 ]. Tan et al.…”

“…Arias et al. [ 31 ] applied the SCCO 2 extraction system on the Lippia origanoides distillation residues to obtain the essential oil. At a fixed operating pressure, they also informed that the desorption mode during extraction process raises rather than the solubility mode when the SCCO 2 extraction experiments were conducted at the high operating temperature, leading to the declining essential oil extraction yield.…”

Extraction of Functional Components from Freeze-Dried Angelica furcijuga Leaves Using Supercritical Carbon Dioxide

“…Arias et al performed pinocembrin extraction using the SC-CO 2 extraction system with the residue of Lippia origanoides distillation as a raw material source. 28 They also reported that, at a constant operating pressure, the desorption process increases rather than the solubility process when the SC-CO 2 extraction process was carried out at the high operating temperature, resulting in the decreasing extraction yield. This negative impact was due to the decreasing CO 2 solvent power and density at the high operating temperature.…”

“…Furthermore, increasing the operating temperature at a given operating pressure decreased the SC-CO 2 density, leading to negative effects on the overall extraction yield. Conversely, it also improved the solute vapor pressure, which may enhance solute extraction. ,, Tan et al reported that the effect of operating temperature on the extraction yield in the SC-CO 2 extraction system is quite complex when they conducted experiments for SC-CO 2 extraction to extract the functional substances from the mixture of pomegranate peel-seed . However, they explained that, at a given operating pressure, the global yield of the functional substance decreased at the high operating temperature owing to the decreasing CO 2 density, resulting in the CO 2 solvent power to decrease, causing the efficiency of SC-CO 2 extraction to decrease.…”

“…However, they explained that, at a given operating pressure, the global yield of the functional substance decreased at the high operating temperature owing to the decreasing CO 2 density, resulting in the CO 2 solvent power to decrease, causing the efficiency of SC-CO 2 extraction to decrease. Arias et al performed pinocembrin extraction using the SC-CO 2 extraction system with the residue of Lippia origanoides distillation as a raw material source . They also reported that, at a constant operating pressure, the desorption process increases rather than the solubility process when the SC-CO 2 extraction process was carried out at the high operating temperature, resulting in the decreasing extraction yield.…”