Subhashini K. Sripathi2017-02-172017-02-172010https://ir.avinuty.ac.in/handle/avu/1456The chemical composition of the essentia! oil obtained by hydrodistillation of the aerial parts of Aristolochia tagala was analysed using Gas Cromatography-Mass Spectrometry method. Thirty seven compounds in the oil were identified. The major components were the sesquiterpenes, namely, P-caryophyllene (13.8%), a-humulene (6.5%), gemiacrene-A (4.3%), bicyclogermacrene (4.2%) and car>'ophyllene oxide (3.9%). The oil showed moderate antibacterial activity against the tested Gram-positive and Gram-negative bacteria.