Literature review: Isolation of essential oils and flavor compounds by dense carbon dioxide

Optimization and comparison of three methods for extraction of volatile compounds from Cyperus rotundus evaluated by gas chromatography–mass spectrometry

“…Thus, developing alternative extraction techniques with better selectivity and efficiency are highly desirable. Consequently, supercritical fluid extraction (SFE) as an environmentally responsible and efficient extraction technique for solid materials was introduced and extensively studied for separation of active compounds from herbs and other plants [14][15][16][17][18][19][20], where oils and essential oils (26%) is one of the two main fields of application for supercritical fluid extraction [21].…”

Extraction of capsaicinoids from chillies ( Capsicum frutescens L.) and paprika ( Capsicum annuum L.) using supercritical fluids and organic solvents

“…Supercritical fluid extraction (SFE) has been shown to be a rapid and efficient method for the extraction of essential oils, oleoresins and other flavouring substances from spices [17][18][19][20]. The extraction characteristics are determined by the pressure and temperature of the supercritical carbon dioxide used.…”

Comparative analysis of the oil and supercritical CO2 extract of Artemisia sieberi

“…It has been widely accepted by many investigators that compared favorably with hydrodistillation the SFE provides a rapid and quantitative method for extracting essential oils from aromatic plants (Hawthorne et al, 1993;Kerrola, 1995;Stahl, Quirin, & Gerard, 1988). By operating SFE in an optimal region, the pressure and temperature can be used to regulate the density; which regulates the solvent power of a supercritical fluid.…”