Ionic liquids as green solvents in herbal extraction
Extraction of phytoconstituents by the use of ionic liquids is very advantageous when compared to conventional extraction methods because of the excellent properties of ionic liquids combined with greater efficiency of microwaves. Ionic liquids are not composed of molecules, but made up of ions. They are also considered as designer solvents because of choice of cations and anions according to the isolation of phytoconstituent. They are green solvents and so ecofriendly in nature as they do not evaporate volatile organic compounds (VOC) which are very harmful.