Essential oils: Difference between revisions
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| author=Seenivasan Prabuseenivasan, Manickkam Jayakumar, and Savarimuthu Ignacimuthu | | author=Seenivasan Prabuseenivasan, Manickkam Jayakumar, and Savarimuthu Ignacimuthu | ||
| journal=BMC Complement Altern Med. | | journal=BMC Complement Altern Med. | ||
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| author=Komiya M, Takeuchi T, Harada E | | author=Komiya M, Takeuchi T, Harada E | ||
| journal=Behav Brain Res | | journal=Behav Brain Res | ||
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| author=Hiroko Kuriyama, Satoko Watanabe, Takaaki Nakaya, Ichiro Shigemori, Masakazu Kita, Noriko Yoshida, Daiki Masaki, Toshiaki Tadai, Kotaro Ozasa, Kenji Fukui, and Jiro Imanishi | | author=Hiroko Kuriyama, Satoko Watanabe, Takaaki Nakaya, Ichiro Shigemori, Masakazu Kita, Noriko Yoshida, Daiki Masaki, Toshiaki Tadai, Kotaro Ozasa, Kenji Fukui, and Jiro Imanishi | ||
| journal=Physiol Behav | | journal=Physiol Behav | ||
| date= | | date=September 15, 2005 | ||
| volume=86 | | volume=86 | ||
| issue=1-2 | | issue=1-2 | ||
Revision as of 10:14, 8 June 2009
An essential oil - liquid extracts from plants, which are called aromatic herbs or aromatic plants and from some other materials (as lichens, honey etc.). This pressed, distilled or extracted substances containing volatile aroma compounds, mainly hydrophobic (terpenes, terpeniods, benzene derivates (aromatic compounds), aldehydes, organic acids etc.).
- Essential oils also known as volatile or ethereal oils, or simply as the "oil of" the plant material from which they were extracted, such as oil of clove. The traditional name essential oil indicates that the oil carries distinctive scent (essence) of the plant, not that it is an especially important or fundamental substance.
Production
Distillation
- See also: distillation
Some common essential oils, such as lavender, peppermint, tea-tree and eucalyptus, are distilled. Raw plant material, consisting of the flowers, leaves, wood, bark, roots, seeds, or peel, is put into an alembic (distillation apparatus) over water. As the water is heated the steam passes through the plant material, vaporizing the volatile compounds. The vapors flow through a coil where they condense back to liquid, which is then collected in the receiving vessel.
Aromatherapy
Raw Materials