The essential oils obtained by hydrodistillation of the fresh leaves and mature fruits of Pittosporum viridulum were analyzed by GC and GC/MS. Fifteen components comprising 85.4% of the leaf oil and twenty-six components comprising 94.5% of the fruit oil have been identified. The major components of the leaf oil were spathulenol (28.4%), caryophyllene oxide (17.6%), and α−cadinol (9.0%), whereas germacrene D (28.6%), α−cadinol (13.0%) and δ−cadinene (9.4%) were the major components in the fruit oil. The oils showed moderate antibacterial activity against the Gram-positive bacteria Staphylococcus aureus and Salmonella typhi.
Essential oils from leaves and fruits of Heracleum candolleanum were obtained by hydrodistillation and analyzed by GC and GC/MS. The major components in the leaf oil were sabinene (13.2%), limonene (9.2%), β−caryophyllene (8.6%) and caryophyllene oxide (8.4%), whereas the major constituents in the fruit oil were limonene (70.0%) and octyl acetate (7.2%).
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