Chemical constituents comparison of essential oils of aerial parts of Conium maculatum L. growing wild in Iran by hydrodistillation, microwave assisted hydrodistillation and solid phase microextraction methods

The present report deals with the analysis comparison of the essential oils from aerial parts of Conium maculatum L. growing wild in Iran were obtained by hydrodistillation, microwave assisted hydrodistillation and solid phase microextraction methods and collected essential oils were analyzed by GC and GC-MS. The plant is a member of the Apiaceae family of rhizomal plant which are usually 120-180cm high. C. maculatum which is also called as Poison hemlock is refered to as one of the most toxic plants. The volatiles were isolated from dried aerial parts of the plant. Twenty two compounds were identified representing 73.8% of total volatiles obtained by HD and the major constituents of the essential oil were α-pinene(16.2%), camphene (9.9%), limonen(8.6%) and linalool(5.3%).Sixteen compounds were identified representing 74.6% of total oils obtained by MAHD and the main components were camphene(13.0%) , limonene(8.7%) , linalool(8.4%) and Fenchyl acetate(7.6%) .Nine compounds were identified representing 99.8% of total oils obtained by SPME and the main components were α-pinene(42.1%), sabinene(16.2%0), limonene ( 11.3%),camphene(9.5%) and myrcene(7.9%).DOI: http://dx.doi.org/10.3126/ijls.v9i2.12056 International Journal of Life Sciences 9 (2) : 2015; 48-50