Supercritical CO2 extraction of compounds from different aerial parts of Senecio brasiliensis: Mathematical modeling and effects of parameters on extract quality

Improved Sustainability in Wine Industry Byproducts: A Scale-up and Economical Feasibility Study for High-Value Compounds Extraction Using Modified SC-CO2

“…This means that convection is more representative than the diffusional mechanism. These results are consistent with those reported for oil extraction of various vegetable matters. ,,, …”

“…These results are consistent with those reported for oil extraction of various vegetable matters. 31 , 47 , 54 , 55 …”

“…These results are consistent with those reported for oil extraction of various vegetable matters. 31,47,54,55 Although the increase in pressure increases the solvent power through a density increase from 0.336 to 0.842 g mL −1 , the solute solubility decreases from 4.699 × 10 −4 to 0.758 × 10 −4 g kg COd 2 −1 . As suggested by Farias-Campomanes et al, 25 the low mass-transfer observed at the high pressure could be partially due to the low dispersion coefficient of the modified SC-CO 2 , which accounts for the axial and radial diffusion mechanisms, the characteristics of the raw material which is not homogeneous (skins and seeds), and the high porosity of the extraction bed.…”

Sustainable approaches for the study of alkaloids from plants using supercritical fluid-based processes

“…The main drawback of scCO 2 is low polarity, which makes the extraction of polar alkaloids difficult, nevertheless, some alkaloids have been extracted using pure scCO 2 . [82][83][84][85][86][87][88][89][90][91][92][93][94][95] Therefore, a co-solvent (or modifier) must be added to make the SFC more polar and to solubilize polar or semipolar alkaloids. The proportion of co-solvent must be small to reach supercritical conditions.…”

“…The extract was analyzed by TLC, infrared spectroscopy (IR), and GC-MS, allowing the identification of the alkaloid fraction, and optimization of the SFE parameters. A similar approach was adopted by Confortin et al 92 who identified alkaloids extracted from Senecio brasiliensis plants using SFE with scCO 2 by GC-MS. In this study, the MS detector allowed the identification of several groups of compounds.…”