Composition and Antibacterial Activity of the Leaf and Fruit Oils of Pittosporum neelgherrense Wight et Arn

The essential oils obtained by hydrodistillation of the fresh leaves and fruits of Pittosporum neelgherrense were analyzed by GC and GC/MS. Twenty-one components comprising 97.6% of the leaf oil and twenty components comprising 81.3% of the fruit oil have been identified. Undecane (62.2%) was the major component in the leaf oil followed by caryophyllene oxide (9.0%) and β-caryophyllene (8.7%). β-Selinene (11.9%), undecane (11.3%), nonane (8.8%) and α-pinene (8.4%) were the major components in the fruit oil. The oils showed moderate activity against most of the tested Gram-positive and Gram-negative bacteria.