*4.1.6 Microwave hydrodiffusion and gravity (MHG)*

The Microwave Hydrodiffusion and Gravity (MHG) process was invented by a team of researchers led by Dr. Farid Chemat at the University of Avignon in France [37]. The team developed the MHG process as an alternative to traditional methods of essential oil extraction, which can be time-consuming and require large amounts of energy. The MHG process was first introduced in 2004 and has since gained popularity in the essential oil industry due to its efficiency and effectiveness.

The process of Microwave Hydrodiffusion and Gravity (MHG) involves the following steps:


## *Essential Oil Extraction Process DOI: http://dx.doi.org/10.5772/intechopen.113311*

