Reinvestigation of carvotanacetone after 100 years along with minor terpenoid constituents of <i>Blumea malcolmii</i> Hook. F. essential oil

2016-04-19T15:30:18Z (GMT) by Rajesh K. Joshi Sandeep R. Pai
<p>Reinvestigation of essential oil constituents of <i>Blumea malcolmii</i> Hook. F. (Asteraceae) was carried out after 100 years using gas chromatography equipped with flame ionisation detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Eighteen constituents, representing 99.2% of the total oil, were identified. The major compound was identified by GC/MS and NMR (<sup>1</sup>H and <sup>13</sup>C) as carvotanacetone (92.1%). The minor compounds of essential oil have also been identified for the first time in <i>B. malcolmii</i>. The oil was found to be rich in oxygenated monoterpene-type constituents (95.0%).</p>