Supercritical Fluid Extraction Using CO<sub>2</sub>: Main Applications and Future Perspectives

Machado, Bruna Aparecida Souza; Pereira, Camila G.; Nunes, Silmar Baptista; Padilha, Francine Ferreira; Umsza-Guez, Marcelo Andrés

doi:10.1080/01496395.2013.811422

Cited by 103 publications

(57 citation statements)

References 179 publications

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“…In practice, over 90% of extractions performed with supercritical fluids are realized with carbon gas for (Gomez and Ossa, 2002;Diaz-Reinoso et al, 2006;Machado et al, 2013). The addition of organic co-solvents such as ethanol, methanol, acetone, among other polar solvents, increases the solvatation power of CO 2 and the yield of extraction of polyphenols (Adil et al, 2007;Ni et al, 2015).…”

Section: Supercritical Extractionmentioning

confidence: 99%

“…An alternative method to the conventional techniques is the supercritical extraction, which uses supercritical fluids as solvents (Pereira et al, 2004;Shao et al, 2014;Machado et al, 2013). The extraction with supercritical fluid consists in the transference of mass based on the use of fluids to temperatures and pressure above the critical values.…”

Section: Supercritical Extractionmentioning

confidence: 99%

“…That way, the use of supercritical fluids has been considered a great option for the extraction and fractioning of natural products, particularly for the pharmaceutic and food industries (Pereira et al, 2004;Machado et al, 2013).…”

Section: Supercritical Extractionmentioning

confidence: 99%

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Phytochemical importance and utilization potential of grape residue from wine production

Cirqueira¹,

Costa²,

Barbosa³

et al. 2017

Afr. J. Biotechnol.

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Grapes are placed at a distinct position, both in the economy and at nutritional and phytochemical levels. The number of studies performed aimed at identifying the various bioactive compounds of grapes, how their cellular structures are linked, efficient methods of extraction and its effect on human health are rather relevant. The use of grapes for wine production is a worldwide activity, therefore a great quantity of residues are generated. These, in turn, are commonly used in soil fertilization and animal feed. Research in the food, pharmaceutical, medical and agricultural industries have revealed a great potential of using grape residue to recuperate phenolic compounds, flavonoids and especially the resveratrol. These have been found by these researches to offer benefits associated to its consumption, such as improvements in glucose tolerance in diabetic patients, decrease in the occurrence of cardiovascular diseases, diminishing the symptoms of menopause, protection against osteoporosis, cancer and Alzheimer's disease. The present work aimed at gathering information about the characterization of the phytochemical content of grapes and its residues, as well as gathering data about the extraction process of such compounds and their application in the food industry.

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Section: Supercritical Extractionmentioning

confidence: 99%

Section: Supercritical Extractionmentioning

confidence: 99%

See 1 more Smart Citation

Phytochemical importance and utilization potential of grape residue from wine production

Cirqueira¹,

Costa²,

Barbosa³

et al. 2017

Afr. J. Biotechnol.

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“…Furthermore, they efficiently dissolve gases and organic compounds thanks to their low dielectric constant. CO 2 is the most used supercritical fluid because of its mild critical constants, P c = 73 bar and T c = 31 • C. Thanks to the previously described properties, supercritical CO 2 (SCCO 2 ) is used to extract organic compounds retained in liquids or on solid matrixes [1]. The regeneration of activated carbons (ACs) is one of the applications in which SCCO 2 is used as extracting fluid.…”

Section: Introductionmentioning

confidence: 99%

Supercritical Regeneration of an Activated Carbon Fiber Exhausted with Phenol

et al. 2018

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Featured Application: Authors are encouraged to provide a concise description of the specific application or a potential application of the work. This section is not mandatory. Abstract:The properties of supercritical CO 2 (SCCO 2 ) and supercritical water (SCW) turn them into fluids with a great ability to remove organic adsorbates retained on solids. These properties were used herein to regenerate an activated carbon fiber (ACF) saturated with a pollutant usually contained in wastewater and drinking water, phenol. Severe regeneration conditions, up to 225 bar and 400 • C, had to be employed in SCCO 2 regeneration to break the strong interaction established between phenol and the ACF. Under suitable conditions (regeneration temperature, time, and pressure, and flow of SCCO 2 ) the adsorption capacity of the exhausted ACF was completely recovered, and even slightly increased. Most of the retained phenol was removed by thermal desorption, but the extra percentage removed by extraction allowed SCCO 2 regeneration to be significantly more efficient than the classical thermal regeneration methods. SCCO 2 regeneration and SCW regeneration were also compared for the first time. The use of SCW slightly improved regeneration, although SCW pressure was thrice SCCO 2 pressure. The pathways that controlled SCW regeneration were also investigated.

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“…The separation and recovery of extracted substances from SC-CO 2 can be rapidly accomplished by the gasification of CO 2 . Many researchers have already reported on SC-CO 2 extraction for organic and inorganic compounds [3][4][5][6]. However, the solubility of metal complexes in SC-CO 2 is generally much lower than that in conventional organic solvents such as chloroform, dodecane, and toluene [7].…”

Section: Introductionmentioning

confidence: 99%

Synergism by β-Diketones on the Extraction of Gallium(III) with Di(2-ethylhexyl)phosphoric Acid into Heptane and Supercritical Carbon Dioxide

Ohashi

Kawashima

Kosugi

et al. 2015

SERDJ

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The synergism caused by of six -diketones on the extraction of gallium(III) with di(2-ethylhexyl)phosphoric acid (D2EHPA or HA) from weak acidic solution into heptane and supercritical carbon dioxide (SC-CO 2 ) was investigated. Thenoyltrifluoroacetone (Htta), benzoylacetone (Hbza), and Htta, namely GaA 2 (tta)·HA and GaA 2 (tta)·2HA. This synergistic effect also occurred in SC-CO 2 extraction. However, the degree of synergism in the SC-CO 2 system is smaller than that in the heptane system.

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Supercritical Fluid Extraction Using CO₂: Main Applications and Future Perspectives

Cited by 103 publications

References 179 publications

Phytochemical importance and utilization potential of grape residue from wine production

Phytochemical importance and utilization potential of grape residue from wine production

Supercritical Regeneration of an Activated Carbon Fiber Exhausted with Phenol

Synergism by β-Diketones on the Extraction of Gallium(III) with Di(2-ethylhexyl)phosphoric Acid into Heptane and Supercritical Carbon Dioxide

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Supercritical Fluid Extraction Using CO2: Main Applications and Future Perspectives

Cited by 103 publications

References 179 publications

Phytochemical importance and utilization potential of grape residue from wine production

Phytochemical importance and utilization potential of grape residue from wine production

Supercritical Regeneration of an Activated Carbon Fiber Exhausted with Phenol

Synergism by β-Diketones on the Extraction of Gallium(III) with Di(2-ethylhexyl)phosphoric Acid into Heptane and Supercritical Carbon Dioxide

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Product

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Supercritical Fluid Extraction Using CO₂: Main Applications and Future Perspectives