In Vitro Antimicrobial Activity of Essential Oil of Swertia cordata Aerial Parts
Khadga S. Khetwal.
Essential oil from aerial parts of Swertia cordata (G. Don.) Clarke obtained by steam distillation was analysed
through Gas chromatography and Gas chromatography-mass spectrometry. The main compounds found were palmitic
acid (8.34), caryophyllene oxide (5.65), pentadecanal (4.77) and lachnophyllum ester (4.14%). Different concentrations of
essential oil were tested for antimicrobial activity by disc diffusion method. The oil was found active against gram positive
bacteria and fungi.
Keywords: Swertia cordata, essential oil, gas chromatography- mass spectrometry, zone of inhibition
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