Essential oil composition and antimicrobial activity of Lobelia pyramidalis Wall

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Date

2012-09-20

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Abstract

The essential oil of Lobelia pyramidalis was analyzed by GC and GC-MS. A total of 21 con-stituents comprising 77.88 % of the total oil were identified. Perilla ketone constituted 25.61 % of the oil followed by camphorquinone (12.16 %), dibutyl phthalate (10.66 %) and allyl nonanoate (8.47 %). The antimicrobial activity of the oil was evaluated using the disc diffusion method and the microdilution technique. The results showed that the oil exhibited moderate antimicrobial activity.

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Keywords

antimicrobial activity, essential oil, Lobelia pyramidalis, minimal inhibitory concentration, perilla ketone

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