Fundamentals of processing with supercritical fluids

Rizvi, Syed S.H.; Yu, Zer‐Ran; Bhaskar, A. R.; Raj, C. B. Chidambara

doi:10.1007/978-1-4615-2169-3_1

Cited by 29 publications

(27 citation statements)

References 47 publications

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“…8 SCFs have also found applications in fields as various as metal ion separations 9,10 and the reprocessing of nuclear fuels, 11 -13 micronization, impregnation and microencapsulation for drug delivery, 14 -19 aerogel drying, 20,21 extraction of residual solvents from polymers and pharmaceuticals, 22,23,8 dyeing textiles 24 -27 food preservation, 23,28 -31 enhanced oil recovery in mature oil fields, 8,32 etc.…”

Section: Sc Co 2 Applicationsmentioning

confidence: 99%

Extraction and processing with supercritical fluids

Mukhopadhyay

2008

J of Chemical Tech & Biotech

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OVERVIEW: Extraction and processing with supercritical fluids (SCF) is increasingly gaining importance in the food, pharmaceutical and chemical industries. Supercritical fluid extraction (SCFE) using carbon dioxide (CO 2 ) as a solvent has emerged as a highly popular technology today over the conventional techniques for extraction of natural products for rapid, contamination-free, tailor-made extracts having superior quality and shelf-life and high potency of active ingredients.IMPACT: The importance of SCFE is on the rise due to consumers' preferences for 'natural' as opposed to synthetic substances and, impending regulations for environmental protection, safety, nutritive and toxicity levels.APPLICATIONS: Newer applications of SCFs include separation and purification of chemicals, cleaning, coating, particle formation, textile dyeing, aerogel drying, reactions with separation and food preservation. Some fundamental aspects of SCFs, various processing technologies with SCFs, and a few newer potential applications are presented in this article.

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Section: Sc Co 2 Applicationsmentioning

confidence: 99%

Extraction and processing with supercritical fluids

Mukhopadhyay

2008

J of Chemical Tech & Biotech

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“…Selectivity during extraction may be controlled by varying the conditions of temperature and pressure, thus affecting the solubility of the various components in the supercritical fluid. Supercritical fluids such as carbon dioxide do not leave a chemical residue and can be recycled and used again as part of the unit operation (Rizvi et al, 1994;Shilpi et al, 2013). A known limitation of supercritical CO 2 is that it often fails in complete extraction of polar analytes from solid matrices, because of the solvating ability of this fluid and the insufficient interaction between CO 2 and the matrix.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Comparison of extraction methods for selected carotenoids from macroalgae and the assessment of their seasonal/spatial variation

Heffernan

Smyth

Fitzgerald

et al. 2016

Innovative Food Science & Emerging Technologies

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“…This technology involves reactive extrusion of starch -based matrices and injection of supercritical carbon dioxide (SC -CO 2 ) as a blowing agent to Pressure, MP a produce microcellular extrudates. CO 2 is the solvent of choice for use in SCFX because it is GRAS, nonfl ammable, noncorrosive, and inexpensive (Rizvi et al ., 1994 ); its critical point is at 31.06 ° C and 7.386 MPa. According to Alavi et al .…”

Section: Supercritical Fluid Extrusionmentioning

confidence: 99%