Authors:  Le Thi Huong, Dao T. M. Chau, Nguyen V. Hung, Do N. Dai* and Isiaka A. Ogunwande.

Abstract: The characterization of chemical constituents of hydrodistilled essential oils from the rhizomes of Distichochlamys citrea M.F. Newman and Distichochlamys orlowii Larsen & M.F. Newman collected from Pù Mát National Park, Nghệ An Province, Vietnam, was performed by means of gas chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) techniques. The main constituents of D. citrea oil were 1,8-cineole (23.0%), (E)-citral (18.9%) and (Z)-citral (15.0%). On the other hand, geranyl acetate (16.5%), β-elemene (9.2%), β-pinene (9.0%) and β-caryophyllene (7.9%) were the principal components of D. orlowii. The present paper is the first of its kind aimed at the characterization of the volatile compounds of D. orlowii.

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