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    The volatile components from the leaves of Solanum bicolor Roemer & Schultes, was obtained by hydrodistillation and was analizad by GC/MS. A total of 20 compounds, representing 96.3 % of the oil, were identified. The dominant compounds were trans-caryophyllene (23.2%), trans-2-pentadecene (22.6%), germacrene D (12.2%), biciclogermecrene (8.0%) and caryophyllene oxide (4.7%).
    Germacrene D
    Germacrene
    Caryophyllene
    Hydrodistilled volatile seed oil composition of commonly growing ornamental Tagetes patula L. was analyzed for its constituents by GC/MS. Forty constituents were identified, comprising 94% of the total oil. Sesquiterpene hydrocarbons (52.7%) and oxygenated sesquiterpenes (15.8%) were the main subclasses of volatile oil components followed by monoterpene hydrocarbons (12.6%). The principle constituents of the volatile oil were (E)-caryophyllene (44.6%) caryophyllene oxide (14.8%), germacrene D (3.8%), (Z)-β-ocimene (3.8%) and limonene (3.7%). From chemical point of view, oxides (15.7%) were the predominant group of components with caryophyllene oxide as their main representative. α-terthienyl (3.8%) comprised partially large amount in the volatile oil content despite of its polar and less-volatile nature. Taking into account the volatile oil profile, the chemical composition of the volatile seed oil of commonly growing ornamental T. patula L. was characterized as sesquiterpene and α-terthienyl rich one probably with appreciable biocidal (Insecticidal and nematicidal) and pharmacological potential.
    Tagetes patula
    Ornamental plant
    Monoterpene
    Germacrene
    Caryophyllene
    Terpene
    Citations (9)
    Abstract The volatile constituents of the fresh leaves of Talauma ovata (Magnoliaceae) were extracted by hydrodistillation and analyzed by GC and GC/MS. Twenty-seven compounds were identified representing 98.8% of the total oil. The oil from this species showed to be constituted by monoterpenes and sesquiterpenes in the same ratio. Among the monoterpenes, limonene (34.8%) and α-pinene (11.3%) were the main constituents, and β-bisabolene (10.7%) was the major substance for the sesquiterpene fraction.
    Magnoliaceae
    Fraction (chemistry)
    alpha-Pinene