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Long-Term Stability of Thujone, Fenchone, and Pinocamphone in Vintage Preban Absinthe
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CVUA Karlsruhe.
, ‡Oxygenee Ltd.
, §Jade Liqueurs, L.L.C.
Section:Abstract
Research was conducted to ascertain whether analyses of vintage absinthe samples represent their original composition in the early 1900s. Absinthe stored in traditional green glass bottles and irradiated with ultraviolet light for up to 200 h exhibited unchanged composition. Samples stored in clear glass exhibited an 18% reduction in β-thujone content and a concurrent decoloration. These experiments indicate the stability of thujone in vintage absinthes, as these were stored in green glass bottles. The preserved color of the preban absinthes subjected to analysis indicates that no significant light exposure occurred throughout the duration of storage, and therefore provides indirect proof that no loss of terpenes occurred. The stability of absinthe was further demonstrated through the reanalysis of samples from 2001−2005, which exhibited no changes in thujone content as of 2008. A previous evaluation of preban absinthe was therefore valid and not confounded by significant thujone deterioration over time.
Keywords:
Alcoholic beverages; absinthe; thujone; fenchone; pinocamphone; Artemisia absinthium L.; wormwood; UV irradiation; long-term storage; accelerated agingCiting Articles
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This article has been cited by 1 ACS Journal articles (1 most recent appear below).
Isolation and Structure Elucidation of the Terpene β-Thujone from Cedar Leaf Oil
Larry G. FrenchJournal of Chemical Education2011 88 (6), 829-831Isolation and Structure Elucidation of the Terpene β-Thujone from Cedar Leaf Oil
Larry G. FrenchJournal of Chemical Education2011 88 (6), 829-831Western red cedar leaf affords an essential oil characterized by high thujone content. Students in an advanced organic chemistry lab course isolate a single thujone diastereoisomer from commercially available cedar leaf oil. Treatment of crude oil, ...
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History
- Published In Issue April 08, 2009
- Article ASAPMarch 03, 2009
- Received: December 22, 2008
Accepted: February 10, 2009
Revised: February 10, 2009
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