This article was downloaded by: [University of Colorado at Boulder Libraries]On: 20 December 2014, At: 13:38 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Regis
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Journal of Essential Oil Research
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Chemical Composition of the Essential Oil from the Rhizomes of Alpinia henryi K Schum of Vietnam
Giang M Phan a , Son T Phan a & Wilfried A König b
a
Faculty of Chemistry , College of Natural Science, Vietnam National University , 19 Le Thanh Tong Street, Hanoi, Vietnam
b
Institut für Organische Chemie, Universität Hamburg , D-20146, Hamburg, Germany Published online: 28 Nov 2011
To cite this article: Giang M Phan , Son T Phan & Wilfried A König (2007) Chemical Composition of the Essential
Oil from the Rhizomes of Alpinia henryi K Schum of Vietnam, Journal of Essential Oil Research, 19:6, 507-508, DOI:
10.1080/10412905.2007.9699317
To link to this article: http://dx.doi.org/10.1080/10412905.2007.9699317
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Trang 2A henryi
Received: October 2005 Revised: January 2006 Accepted: February 2006
Chemical Composition of the Essential Oil from the
Rhizomes of Alpinia henryi K Schum of Vietnam
Giang M Phan and Son T Phan,*
Faculty of Chemistry, College of Natural Science, Vietnam National University, 19 Le Thanh Tong Street, Hanoi, Vietnam
Wilfried A König#,
Institut für Organische Chemie, Universität Hamburg, D-20146 Hamburg, Germany
Abstract
The essential oil from the fresh rhizomes of Alpinia henryi K Schum (Zingiberaceae) collected in Vietnam was
analyzed by GC and GC/MS Twenty-five compounds, representing 86.4% of the oil, were identified The oil was characterized by a high content of 1,8-cineole (45.1%).
Key Words Index
Alpinia henryi, Zingiberaceae, essential oil composition, 1,8-cineole
1041-2905/07/0005-0507$14.00/0—© 2007 Allured Publishing Corp.
J Essent Oil Res., 19, 507–508 (November/December 2007)
*Address for correspondence
Plant Name
Alpinia henryi K Schum (Zingiberaceae).
Source
Fresh rhizomes of A henryii were collected in Tam Dao,
Province Vinh Phuc, Vietnam The plant material was identified
by a botanical taxonomist Nguyen Quoc Binh of the Institute of
Ecology and Biological Resources, Vietnam Academy of Science
and Technology, Hanoi, Vietnam, and a voucher specimen is
deposited in the Herbarium of the same Institute
Plant Part
The fresh rhizomes were subjected to hydrodistillation
for 8 h to produce an oil of 1.29% yield (on the basis of fresh
weight) on being dried over anhydrous sodium sulphate
Previous Work
A survey of the literature reveals that there is no report on
the essential oil from any part of A henryi.
Present Work
Gas Chromatography: An Orion Micromat 412
instru-ment equipped with two fused silica capillary columns (25 m
x 0.25 mm, film thickness 0.15 mm) coated with CPSil-5-CB
and CPSil-19-CB (Chromapack), respectively, split
injec-tion and flame ionizainjec-tion detecinjec-tion, was used Injecinjec-tion and detector temperatures were maintained at 200°C and 250°C, temperature program 50°–230°C at 3°C/min, carrier gas H2
at 1.2 mL/min
Gas Chromatography/Mass Spectrometry: A Hewlett-Packard HP 5890 gas chromatograph, coupled to a VG Analytical 70-250S mass spectrometer The GC was fitted with a fused silica capillary column coated with CPSil-5-CB (25 m x 0.25
mm, film thickness 0.15 μm) The GC operating conditions were identical to those described above The MS operating parameters were: ionization voltage, 70 eV; ion source tem-perature, 230°C; He was used as the carrier gas
The oil was analyzed using a dual GC on a non-polar polar CPSil-5-CB and a more polar CPSil-19-CB columns of identical dimensions and GC/MS on a CPSil-5-CB column Retention indices and mass spectra of the constituents were compared with those of authentic samples and computer-supported library spectra generated under identical experimental conditions (1) Twenty-five compounds, representing 86.4% of the oil, were identified (Table I) 1,8-Cineole (45.1%) is the main component of the oil
Acknowledgments
We thank the VolkswagenStiftung (Partnerschaftsvorhaben
“Untersuchung ätherischer Öle Vietnams”) for financial support to this work
References
1 D.H Hochmuth, W.A König and D Joulain, MassFinder 2.3 Software & Data Bank, Hamburg (2003) Available at: www.massfinder.com.
# deceased
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Table I Constituents of the essential oil from the rhizomes of Alpinia henryi
Compound Means of identification Percentage composition (%) a
a) Relative percentages were obtained on the GC CPSil-5-CB column.