hydrodistillation

listen to the pronunciation of hydrodistillation
Английский Язык - Английский Язык
A variant of steam distillation in which material is soaked for some time in water after which the mixture is heated and volatile materials are carried away in the steam, condensed and separated
Hydrodistillation is the process whereby the essential molecular structure of medicinal plant material is extracted utilizing a still (flask and condenser apparatus). The plant material is heated and the resulting vaporous steam is captured, condensed and collected. Typically this process is used to produce an essential oil (that separates from the distillate as an oily fraction) as is the case with aromatic plant material. However, the carrier medium in the distillation process is water or the hydrosol (water solution), which can also be used to extract the molecular constituents of non-aromatic medicinal plants