This review attempts to provide an updated overview (including works published till June 2006) on the latest applications of compressed fluids as sample preparation techniques for food analysis. After a general review of the principles of supercritical fluid extraction (SFE) and pressurized liquid extraction (PLE; also called accelerated solvent extraction, ASE or subcritical water extraction, ...

Far-infrared (FIR) irradiation and subcritical water were applied for recovering antioxidant compounds from rice hulls (RHs). After 30 min of FIR treatment at 100°C, the radical scavenging activity (RSA) and total phenol contents (TPC) of RH extracts increased from 47.74% to 79.63% and from 0.12 mM to 0.19 mM, respectively, compared to control. The inhibition of lipid peroxidation in extracts w...

Wheat bran is a major by-product of cereal production that still has limited use for advanced nutritional and material applications. A sequential process using subcritical water, membrane filtration and selective enzymatic treatments has been designed for the combined fractionation of functional high molar mass hemicelluloses (over 10 g mol) and oligosaccharides from wheat bran. This process no...

[1] Amino acids are considered organic molecular indicators in the search for extant and extinct life in the Solar System. Extraction of these molecules from a particulate solid matrix, such as Martian regolith, will be critical to their in situ detection and analysis. The goals of this study were to optimize a laboratory amino acid extraction protocol by quantitatively measuring the yields of ...