Khadak Singh Khetwal

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The essential oil of Lobelia pyramidalis was analyzed by GC and GC-MS. A total of 21 constituents 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(More)
A new norditerpenoid alkaloid 9-hydroxysenbushine A has been isolated from the roots of high altitude Himalayan herb Aconitum balfourii by means of vacuum liquid chromatography and centrally accelerated radial thin layer chromatographic techniques and identified by means of MS, 1H and 13C NMR spectral methods.
Aconitm balfourii (Renunculaceae) is an important highly prized herb found in the Uttaranchal Himalaya in India. It has been frequently used in Ayurvedic systems of medicines since long time but unfortunately it is not taken up of for its systematic chemical investigation after 1928 when an alkaloid was reported to be present in its roots. In our program to(More)
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