Essential Oils
Essential oils are not oils but volatile aromatic compounds that are used in flavors, fragrances, and in aroma therapy for health purposes. Essential oils are usually extracted by distillation.
Maceration is also used as a means of extracting essential oils. In this process, used, for example, to extract the onion, garlic, wintergreen and bitter almond essential oil, the plant material is macerated in warm water to release the volatile compounds in the plant.
Read more about this topic: Types Of Plant Oils
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