PJB-2017-631
CHEMICAL COMPOSITION OF THE ESSENTIAL OIL FROM THE LEAVES OF ENDOSTEMON OBTUSIFOLIUS (E.MEY. EX BENTH.) N.E.BR.
C.T.Sadashiva
Abstract
In this study, the chemical composition of the volatile oil from the leaves of Endostemon obtusifolius (E.Mey. ex Benth.) N.E.Br. was investigated. The composition of the oil obtained by hydrodistillation followed by Gas Chromatography/Mass Spectrometry (GC/MS), yielded 50 compounds representing 99.8% of the oil. The major volatile components of the oil were phenol (26.92%), 1,3,6,10-cyclotetradecatetraene, 3,7,11-trimethyl-14- (1-methylethyl)-, [S-(E,Z,E,E)]-(19.13%), acetic acid, 1,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl ester(6.44%), cyclooctene(5.25%), 1H-cyclopropa[a]naphthalene,decahydro-1,1,3a-trimethyl-7-methylene-[1aS-(1a.alpha.,3a.alpha.,7a.beta.,7b.alpha.)]-(4.98%),3-cyclohexen-1-ol,4-methyl-1-(1 methylethyl)-(3.81%), cycloisolongifolene, 8,9-dehydro- (3.52%) and 1H-cycloprop[e]azulene, decahydro-1,1,7-trimethyl-4-methylene-(3.12%).
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