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An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants.Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the oil of the plant from which they were extracted, such as oil of clove.
Unlike other essential oils, lemon oil is usually cold pressed. Used in cosmetics. Lemongrass. Lemongrass is a highly fragrant grass from India. The oil is very useful for insect repellent. Lime; Litsea cubeba oil, lemon-like scent, often used in perfumes and aromatherapy. Linalool; Mandarin; Marjoram; Manuka oil; Melissa oil (Lemon balm ...
The term terpene was coined in 1866 by the German chemist August Kekulé to denote all hydrocarbons having the empirical formula C 10 H 16, of which camphene was one. Previously, many hydrocarbons having the empirical formula C 10 H 16 had been called "camphene", but many other hydrocarbons of the same composition had different names.
Essential oils can be toxic when ingested or absorbed internally. Doses as low as 2 ml have been reported to cause clinically significant symptoms and severe poisoning can occur after ingestion of as little as 4 ml. [ 34 ] A few reported cases of toxic reactions like liver damage and seizures have occurred after ingestion of sage, hyssop, thuja ...
A colorless oil, it occurs widely in essential oils. It is produced mainly semi-synthetically from Myrcia, from which it gets its name. It is an intermediate in the production of several fragrances. [3] An less-common isomeric form, having one of the three alkene units in a different position, is α-myrcene.
Essential oils are usually extracted by distillation. Maceration is also used as a means of extracting essential oils. [5] 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.
Tea tree oil, also known as melaleuca oil, is an essential oil with a fresh, camphoraceous odour and a colour that ranges from pale yellow to nearly colourless and clear. [ 1 ] [ 2 ] It is derived from the leaves of the tea tree, Melaleuca alternifolia , native to southeast Queensland and the northeast coast of New South Wales , Australia.
This category includes all essential oils such as Tea tree oil, obtained by distillation from plant materials. It does not include specific constituents of those oils (e.g., limonene)- these should be listed under the appropriate sub-category of Category:Organic compounds