Publications of NIPGR Scientists

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    Composition of the essential oil from the roots of Artemisia annua
    (Springer, 2007) Goel, Divya; Goel, Richa; Singh, Vijender; Ali, Mohammed; Mallavarapu, Gopal Rao; Kumar, Sushil
    Upon hydrodistillation, dried roots of Artemisia annua L. cultivar Jwarharti gave a pleasantly fragrant essential oil with a yield of 0.25%. GC and GC–MS analyses of the oil enabled the identification of 52 components representing 83.2% of the oil. The oil was rich in sesquiterpenes and oxygenated sesquiterpenes and had cis-arteannuic alcohol (25.9%), (E)-β-farnesene (6.7%), β-maaliene (6.3%), β-caryophyllene (5.5%), caryophyllene oxide (4.4%) and 2-phenylbenzaldehyde (3.5%) as its major components. The oil was found to possess considerable fumigant activity and ability to repel adult Tribolium castaneum beetles.
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    Essential oils of petal, leaf and stem of the antimalarial plant Artemisia annua
    (Springer, 2006) Goel, Divya; Singh, Vijender; Ali, Mohammed; Mallavarupu, Gopal Rao; Kumar, Sushil
    The chemical composition of the essential oils obtained from petals, leaves and stems of the flowering stage of plants of Artemisia annua cultivar Jwarharti was analyzed by gas chromatography mass spectrometry (GC-MS); 86, 77, and 63 compounds were identified in the leaf, petal, and stem oils, respectively. Large compositional differences were detected between the three oils. The petal and leaf oils were rich in monoterpenes. The stem oil was rich in sesquiterpenes. Camphor, present in the leaf oil, was absent from petal oil.