Enzymatic reactions based on ionic liquids (ILs) and supercritical carbon dioxide (scCO_2), are interesting alternatives to organic solvents for designing clean synthetic chemical processes that provide pure products directly. The classical advantages of scCO_2 to extract, dissolve and transport chemicals are tarnished in the case of enzymatic processes because of its denaturative effect on enzymes. ILs have shown themselves to be excellent non-aqueous environments for enzyme catalysis. Biphasic systems based on ILs and supercritical carbon dioxide have been proposed as the first approach to achieving integral green bioprocesses in non-aqueous media.
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