Environmentally Benign Supercritical Fluid Extraction


Supercritical fluid extraction (SFE), and in particular supercritical carbon dioxide (SC-CO2) extraction, is an environmental-friendly high-pressure extraction technology alternative to conventional solid–liquid extraction. The use of SC-CO2 can provide valuable industrial advantages such as intensification and simplification of the processes, with consequent savings on chemicals, utilities and processing time. Moreover, it may preserve the natural character of the products and even act as enhancer of composition and properties such as antioxidant activity, shelf life, cooking time, etc. Prospective novel applications are expected to emerge at industrial scale in the coming years, extending the valences and scope of SFE and SC-CO2 to novel fields. These topics are addressed in this chapter.


de Melo, M.M.R,, Portugal, I., Silvestre, A.J.D., Silva, C.M.

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