STUDIES ON THE ESSENTIAL OIL OF PEROVSKIA ABROTANODES

Abstract

The oil of P. abrotanoides was studied with GC-MS for its chemical constituents which shows the presence of 24 compounds. Some of the chemical constituents were identified through comparison with the mass-spectrum of individual compound given in the literature while a few others were characterised on the basis of their fragmentation pattern in the mass-spectrum. It was observed that the ecological conditions have a pronounced effects on the chemical constituents. A marked difference in the local variety was observed when it was found that it did not contain a or ?-pinene whereas these compounds were reported in species available elsewhere.