Natural Product Research 2012-01-01

Chemical composition of the essential oil from the flowering aerial parts of Bupleurum hamiltonii Balak from Uttarakhand, India.

C Pande, G Tewari, C Singh, S Singh

Index: Nat. Prod. Res. 26(15) , 1442-5, (2012)

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Abstract

The essential oil from the flowering aerial parts of Bupleurum hamiltonii Balak syn. Bupleurum tenue family Apiaceae (Umbellifereae) was obtained by steam distillation and analysed by a combination of GC (RI) and GC-MS. The chemical composition of the isolated oil is reported here for the first time. Twenty-seven compounds were identified, which represent 92.7% of the total oil. The chemical composition of the isolated oil was characterised by a high proportion of sesquiterpene hydrocarbons (61.9%), among which germacrene-D (17.8%), trans-β-farnesene (14.7%) and β-caryophyllene (13.1%) were the predominant compounds. The monoterpene hydrocarbons (16.6%) represented the second major fraction of the same oil followed by the oxygenated sesquiterpenes (7.9%).