Supercritical Fluid Extraction: AReview

Author(s): Tariq Ahmad1*, F.A.Masoodi2, Sajad A. Rather3,S. M. Wani4& Amir Gull5

Supercritical fluid Extraction (SFE)is a green technology as use of supercritical CO2 (SC-CO2) is the most widely used since it is nontoxic, non-flammable, non-corrosive, and easy to handle allowing supercritical operation at low pressures and near room temperature. Supercritical CO2 (SC-CO2) is cheap and readily available in bulk quantities with a high degree of purity, ensuring minimal alteration of the bioactive compounds and to pre-serve their curative or functional properties, possesses the ability to solubilize lipophilic substances, and can be easi-ly removed from the final products. It is environmentally friendly and “generally recognized as safe “GRAS” tech-nique. This paper presents an overview of the literature addressingthe genesis of SFE to the application of super-critical fluids in various aspects of the food industry and is divided into eight different areas: SFE Principle,Extrac-tion Parameters, Extraction/Separation Methods, Carbon Dioxide as Supercritical Fluid Extraction, Other Super Critical Fluids, Instrumentation and Working Apparatus, Extraction/Separation Methods.The review also discusses subsequent advantages of this method over other extraction process.<


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