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Phytochemistry

Title:		Identification of odorants in frankincense (Boswellia sacra Flueck.) by aroma extract dilution analysis and two-dimensional gas chromatography-mass spectrometry/olfactometry
Author(s):		Niebler J; Buettner A;
Address:		"Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU), Schuhstr. 19, 91052 Erlangen, Germany. Department of Chemistry and Pharmacy, Emil Fischer Center, Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU), Schuhstr. 19, 91052 Erlangen, Germany. Electronic address: andrea.buettner@fau.de"
Journal Title:		Phytochemistry
Year:		2015
Volume:		20141118
Issue:
Page Number:		66 - 75
DOI:		10.1016/j.phytochem.2014.10.030
ISSN/ISBN:		1873-3700 (Electronic) 0031-9422 (Linking)
Abstract:		"Frankincense has been known, traded and used throughout the ages for its exceptional aroma properties, and is still commonly used in both secular and religious settings to convey a pleasant odor. Surprisingly, the odoriferous principle(s) underlying its unique odor profile have never been published. In this study, resin samples of Boswellia sacra Flueck. from both Somalia and Oman were investigated by aroma extract dilution analysis. In a comprehensive, odor-activity guided approach both chemo-analytical and human-sensory parameters were used to identify odor active constituents of the volatile fraction of B. sacra. Among the key odorants found were alpha-pinene, beta-myrcene, linalool, p-cresol and two unidentified sesquiterpenoids. Overall, a total of 23 odorants were detected and analyzed by gas chromatography-olfactometry and heart-cut two-dimensional gas chromatography-mass spectrometry/olfactometry. The majority of the identified odorant compounds were oxygenated monoterpenes, along with some relevant mono- and sesquiterpenes and only one diterpenoid substance. Several of these compounds were reported here for the first time as odorous constituents in B. sacra. Identifying bioactive compounds might support a better understanding with regard to the potential benefits of frankincense, for example in aromatherapy or ecclesial settings"
Keywords:		Adult Boswellia/*chemistry Female Frankincense/*chemistry Gas Chromatography-Mass Spectrometry Humans Male Monoterpenes/analysis Odorants/*analysis Olfactometry Oman Sesquiterpenes/analysis Somalia Volatile Organic Compounds/analysis Young Adult Aroma ext;
Notes:		"MedlineNiebler, Johannes Buettner, Andrea eng Research Support, Non-U.S. Gov't England 2014/12/04 Phytochemistry. 2015 Jan; 109:66-75. doi: 10.1016/j.phytochem.2014.10.030. Epub 2014 Nov 18"