Supercritical fluid extraction: Recent advances and applications

Abstract

Among the different extraction techniques used at analytical and preparative scale, supercritical fluid extraction (SFE) is one of the most used. This review covers the most recent developments of SFE in different fields, such as food science, natural products, by-product recovery, pharmaceutical and environmental sciences, during the period 2007-2009. The revision is focused on the most recent advances and applications in the different areas; among them, it is remarkable the strong impact of SFE to extract high value compounds from food and natural products but also its increasing importance in areas such as heavy metals recovery, enantiomeric resolution or drug delivery systems.

Extraction of Phytochemicals from Grains of Paradise Using Supercritical Carbon Dioxide

“…As shown in the Fig. 3, the intensities of functional groups in the grains of paradise seeds also decreased after treatment by SCCO2 at a constant extraction temperature with the elevating extraction pressures [22]. Judging from these results, it could be said that the changing of extraction temperature and/or pressure could give a strong influence on SCCO2 extraction system.…”

Extraction of passion fruit seed oil using supercritical CO₂: a study of mass transfer and rheological property by Bayesian inference

“…One of the excellent alternative methods, which minimizes the use of liquid organic solvents and facilitates solvent recovery, is the use of pressurized fluids such as supercritical CO 2 (SC-CO 2 ). The extraction with pressurized fluids permits the efficient removal of triglycerides from vegetable oils, enables easy separation of solvent, oil and residue of the process, resulting in products with no residual solvents (Temelli, 2009;Acosta et al, 1996;Gracia et al, 2009;Herrero et al, 2010, Reverchon 1997. The SC-CO 2 extraction process has become the focus of attention in recent years due to its chemical and physical properties: non-flammable, non-toxic, noncorrosive, etc.…”

Fluid behavior of supercritical carbon dioxide with water in a double-Y-channel microfluidic chip

“…Recently, this has attracted the attention of the microfluidic community, resulting in supercritical microfluidic applications such as particle synthesis, microreactors, and flow-through chemistry, as presented in a recent review . In addition to the applications presented in that review, scCO 2 is used in analytical chemistry such as supercritical fluid chromatography, SFC (Lee and Markides 1990), and in extraction and synthesis in green technologies (Herrero et al 2010). There are good reasons to pursue miniaturization also for these applications.…”