94 research outputs found

    Volatile constituents of the Rhizome Oil of Alpinia laosensis Gagnep. From Indochina

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    The volatile constituents, obtained by steam distillation, of rhizomes of A. laosensis (from Vietnam), were analysed by capillary GC and GC-MS. Eighty-two compounds were observed of which 64 were identified. The main component was 1,8-cineole [eucalyptol] (43.9%). No other constituents amounted to more than 5%

    Constituents of the leaf oil of Vietnamese Clausena excavata Burm.f

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    A detailed analvsis of the essential oil of Clausena excavata Burm.f. has been carried out by capillary dc and GC/MS. The oil contains more than 50 components, of which 40 have been identified. The main constituents found were beta-caryophyllene (25.3%), germacrene B (11.8%) !Uld beta-phellandrene (9.2%)
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