Chemical Compositions of the Essential oil of Aerva javanica Leaves and Stems.

The essential oils from leaves and stems of Aerva javanica was extracted through dry steam distillation and the chemical composition of the oil was determined by Gas Chromatography-Mass Spectrometry (GC-MS). Total nineteen compounds were identified, representing 82.96% and 78.92% of the leaves and stems, respectively. The essential oil of Aerva javanica leaves was found to be rich in hentriacontane (21.48%), nonacosane (20.59%), heptacosane (19.78%), pentacosane (5.58%), octacosane (3.47%), triacontane (2.81%) and hexacosane (2.04%). Whereas the essential oil of stems was determined to be rich in nonacosane (23.26%), heptacosane (22.48%), hentriacontane (18.32%), octacosane (3.42%), triacontane (2.24%) and squalene (2.07%). Thirteen chemical constituents were common in the essential oil of both leaves and stems of Aerva javanica. [ABSTRACT FROM AUTHOR]