Solubilities of palmitic and stearic fatty acids in supercritical carbon dioxide

Wound dressings loaded with an anti-inflammatory jucá (Libidibia ferrea) extract using supercritical carbon dioxide technology

“…This corresponds to an averaged composition of 52% in non-saturated fatty acids, 26% in saturated fatty acids and 13% in terpenoids. This composition profile was somehow expected taking into account the known solubilities of the above indicated fatty acids in scCO 2 which follow the same trend [50,51]. Such an ability of scCO 2 to selectively extract oils containing high molecular mass acids (having 10 or more carbon atoms), their esters and/or their triglycerides [52,53], can be considered as an additional advantage to its non-toxic and non-flammable character, to the required low processing temperatures and to the negligible amounts of solvent residues present in the final product.…”

Valorization of hazelnut, coffee and grape wastes through supercritical fluid extraction of triglycerides and polyphenols

“…5.b, the triglycerides rich in palmitic acid are more soluble than those rich in oleic acid; this results in a selective removal of palmitic-acid-rich lipids at the beginning of the extraction run while the oleic-acid-rich ones are removed at the end. This may be related to the fact that palmitic acid, which is also the component with the lowest molecular weight, is more soluble in SF with respect to oleic acid as it can be evinced by comparing the solubility data reported for these two acids in the literature [28,29]. However, even though the composition of the triglycerides obtained from spent ground coffee varied during the extraction time, the composition of the final extracts did not significantly differ from that obtained with the soxhlet extractions.…”

Solubilities and partial molar volumes of new CO2-philic propane derivatives in supercritical carbon dioxide

“…For any efficient supercritical process, solubility data of compounds in scCO 2 are one of necessary thermophysical properties. However, solubility data under high and low temperature in scCO 2 are less frequently reported [12][13][14][15]. Furthermore, CO 2 is a non-polar molecule with a low dielectric constant, which prevents it from dissolving hydrophilic compounds with high polarity, metal ions and high-molecular-mass compounds [16][17][18][19][20][21][22][23][24][25][26][27].…”