22 Microwave Assisted Extraction

The most widely described application of microwave treatment in organic materials processing has been microwave assisted extraction. In this method, plant materials such as wood, seeds and leaves are suspended in solvents and the mixture is exposed to microwaves instead of conventional heating. Enhanced rates of extraction for plant based oils have been observed for a range of plant materials.

All microwave-assisted extraction techniques can be considered an alternative to conventional techniques because they reduce: extraction times; costs; energy; solvent consumption; and CO2 emissions (Chemat and Cravotto 2013). In addition, some techniques have been successfully applied at an industrial scale in the cosmetic, ...

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