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eCAM Advance Access published online on October 6, 2004
eCAM, doi:10.1093/ecam/neh041
Copyright © 2004 by the Oxford University Press.
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Received December 4, 2003
Accepted June 10, 2004

Original Articles

Essential Oil of Betula pendula Roth. Buds

Betül Demirci 1, Dietrich H. Paper 2, Fatih Demirci 1, K. Hüsnü Can Baser 3, and Gerhard Franz 2*

1 Department of Pharmaceutical Biology, Faculty of Chemistry and Pharmacy, University of Regensburg, Germany; Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
2 Department of Pharmaceutical Biology, Faculty of Chemistry and Pharmacy, University of Regensburg, Germany
3 Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey

* To whom correspondence should be addressed. E-mail: gerhard.franz{at}chemie.uni-regensburg.de.


  Abstract

The essential oil of Betula pendula Roth. buds was obtained using both hydrodistillation and microdistillation techniques and their chemical compositions were analyzed using both gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Overall, more than 50 compounds were identified representing 80% and 92% for hydrodistillation and microdistillation, respectively. The main components (by hydrodistillation and microdistillation, respectively) found were {alpha}-copaene (12% and 10%), germacrene D (11% and 18%) and {delta}-cadinene (11% and 15%) in the analyzed essential oils. The microdistillation technique proved to be a useful tool and compliant alternative when compared to hydrodistillation.

Keywords: birch; Betula pendula; Betulaceae; essential oil; GC; GC-MS; hydrodistillation; microdistillation.
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Martin Watt
Evidence-based Complementary and Alternative Medicine, 14 Apr 2005 [Full text]

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