Extraction of resveratrol from the pomace of Palomino fino grapes by supercritical carbon dioxide

The combined extraction of polyphenols from grape marc: Ultrasound assisted extraction followed by supercritical CO2 extraction of ultrasound-raffinate

“…In the literature few papers deal with grape marc polyphenols extraction using non-conventional techniques such as enzymeassisted extraction (Kammerer, Claus, Schieber, & Carle, 2006), extraction using high voltage electrical discharges (Boussetta, Lanoisell e, Bedel-Cloutour, & Vorobiev, 2009) or high hydrostatic pressure or pulsed electric fields (PEF) (Corrales, Toepfl, Butz, Knorr, & Tauscher, 2008), microwave assisted extraction (MAE) and ultrasound assisted extraction (UAE) (Ghafoor, Choi, Jeon, & Jo, 2009;Novak, Janeiro, Seruga, & Oliveira-Brett, 2008;Palma & Barroso, 2002;Pan, Niu, & Liu, 2003), and supercritical fluid extraction (SFE) with supercritical carbon dioxide (SC-CO 2 ) added of a co-solvent (Casas et al, 2010;Da Porto, Decorti, & Natolino, 2014a;Da Porto, Natolino, & Decorti, 2014b;Farias-Campomanes, Rostagno, & Meireles, 2013;Ghafoor, Park, & Choi, 2010;Murga, Ruiz, Beltran, & Cabezas, 2000;Pinelo et al, 2007).…”

Phytoestrogens in foods on the Nordic market

“…Several investigators have commonly used solid phase extraction methods (e.g. Shao et al, 2003) and even supercritical carbon dioxide (Casas et al, 2010).…”

Determination of Antioxidant Compounds in Foodstuff

“…However, compounds of appreciable polarity (e.g., phenols and flavonoids) are sparfl ingly soluble in pure CO 2 ; therefore, a polar modifier (co-solvent such as fi ethanol, methanol or water) must be added to obtain the necessary polarity to improve the extraction effi ciency of polar compounds and to overcome ffi interactions between the analyte and the matrix, facilitating the release of target compounds into the extraction medium. Accordingly, an efficient ffi extraction of phenolics from Golden delicious apple peels and resveratrol from grape pomace using ethanol as co-solvent was achieved by Massias et al [166] and Casas et al [167], respectively. The extraction of protocatechuic Th acid from Scutellaria barbata D. Don [163] and phenolics from jatoba (Hymenaea courbaril L.) bark [168] was successfully achieved using water l as co-solvent.…”