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
Famous quotes containing the words essential and/or oils:
“It is the business of thought to define things, to find the boundaries; thought, indeed, is a ceaseless process of definition. It is the business of Art to give things shape. Anyone who takes no delight in the firm outline of an object, or in its essential character, has no artistic sense.... He cannot even be nourished by Art. Like Ephraim, he feeds upon the East wind, which has no boundaries.”
—Vance Palmer (1885–1959)
“He must be theory-mad beyond redemption who ... shall ... persist in attempting to reconcile the obstinate oils and waters of Poetry and Truth.”
—Edgar Allan Poe (1809–1849)