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|Section2= |Section3= }} Thujone (〔Derived from the Ancient Greek θυία, ''thuj(a)'', a kind of cedar + -ωνη, ''-one'', feminine patronymic for a chemical relative of acetone〕) is a ketone and a monoterpene that occurs naturally in two diastereomeric forms: (−)-α-thujone and (+)-β-thujone. It has a menthol odor. Though it is best known as a chemical compound in the spirit absinthe, absinthe contains only small quantities of thujone, so thujone is unlikely to be responsible for absinthe's alleged psychedelic effects. Thujone acts on GABA and 5-HT3 receptors in the brain. In many countries, the amount of thujone allowed in food or drink products is regulated. Thujone, as a component of several essential oils, is also used in perfumery. In addition to the naturally occurring (−)-α-thujone and (+)-β-thujone, two other enantiomeric forms are possible: (+)-α-thujone and (−)-β-thujone: File:Alpha-(-)-Thujon.svg|(−)-α-thujone File:Alpha-(+)-Thujon.svg|(+)-α-thujone File:Beta-(+)-Thujon.svg|(+)-β-thujone File:Beta-(-)-Thujon.svg|(−)-β-thujone == Sources == Thujone is found in a number of plants, such as arborvitae (genus ''Thuja'', hence the derivation of the name), Nootka cypress, some junipers, mugwort, oregano, common sage, tansy, and wormwood, most notably grand wormwood (''Artemisia absinthium''), usually as a mix of isomers in a 1:2 ratio. It is also found in various species of ''Mentha'' (mint). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「thujone」の詳細全文を読む スポンサード リンク
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