The principle of laboratory essential oil extraction process mainly includes the following aspects:
Steam distillation method: This is one of the most commonly used extraction methods, which utilizes the characteristic of plant essential oils that can be distilled together with steam. During the distillation process, essential oils in plant materials evaporate along with water vapor, then condense into liquid through cooling, and are separated based on the differences in specific gravity and density between the essential oils and water.
Solvent extraction method: This method uses special solvents to extract essential oils from plants. Firstly, place the plant material into an extraction device containing a suitable solvent to dissolve the essential oil in the solvent. Then, through steps such as precipitation, separation, and evaporation, the essential oil is finally obtained

100l Ultrasonic-assisted Extraction of gingerol oleoresin in ginger