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  • Title: Essential oil constituents of Etlingera yunnanensis and Hornstedtia sanhan grown in Vietnam.
    Author: Chau DT, Dai DN, Hoi TM, Thai TH, Thang TD, Ogunwande IA.
    Journal: Nat Prod Commun; 2015 Feb; 10(2):365-6. PubMed ID: 25920285.
    Abstract:
    The chemical composition of the essential oils obtained from the hydrodistillation of different parts of Etlingera yunnanensis (T.L. Wu & S.J. Chen) R.M. Sm. and Hornstedtia sanhan M.F. Newman (Zingiberaceae) grown in Vietnam are reported. The analysis was performed by means of a gas chromatography-flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC-MS). The essential oil of the leaves of E. yunnanensis comprised mainly germacrene D (19.2%), β-pinene (11.6%), and α-amorphene (11.2%), while that of the stems was rich in β-pinene (23.7%), 1,8-cineole (11.0%) and α-pinene (9.6%). The major components of the root oil of E. yunnanensis were β-pinene (31.9%), α-pinene (13.7%) and 1,8-cineole (9.4%). However, α-pinene (25.9%, 36.3% and 14.1% for leaves, stems and roots, respectively), β-pinene (9.7%, 11.8% and 7.2% for leaves, stems and roots, respectively) and limonene (22.1%, 24.6% and 16.2% for leaves, stems and roots, respectively) were the major compounds of H. sanhan. In addition, α-humulene (15.9%) was present in larger amounts in the leaf oil while the root oil contained the largest proportion of methyl chavicol (43.7%).
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