Techniques Available for the Extraction of Essential Oils from Plants: A Review

Abstract

The different techniques available for the extraction of essential oils has been reviewed. Also the study of various parameters has been done which influence the yield and quality of the desired essential oils. Parameters like solvent to feed ratio, temperature of the boiling mixture, size of the raw material and the time of extraction have significant influences on the yield and quality of the extracted essential oils. The hydro-distillation method found to be most suitable method for the extraction of essential oils that are temperature sensitive.