Essential oil extractions - principles and practice Part 2: Extraction methods

摘要

For each method, there may be many variations and refinements as we can conduct the extraction under reduced pressure (vacuum), ambient pressure, or excess pressure. The choice of extraction method will depend on the nature of the material, the stability of the chemical components and the specification of the targeted product. Once processed, the essential oils are stored closed tight in dark glass bottles/containers in a cool place away from direct heat and light.