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E3 Journal of Medical Research

E3 Journal of Medical Research Vol. 1 (3) pp. 034-037, April 2012; © E3 Journals; ISSN 2276-9900

Dynamics of essential oils of Cymbopogon martinii (Roxb.) Wats and Cymbopogon citratus (DC) Stapf. under rust disease indices

P Tamuli1 *
1 Department of Botany, Darrang College, Tezpur, Assam, India
*Corresponding Author E-mail:
Accepted 16 March 2012


An investigation was carried out to study the difference in quality of essential oils obtained from healthy and rust infected Cymbopogons (Cymbopogon martinii (Roxb.) Wats and Cymbopogon citratus (DC) Stapf.) at various Per cent Disease Index (PDI) using GC and GC / MS analyses. Result showed a marked difference in the oils with regards to oil recovery. In case of C. martinii healthy leaves yielded 0.60% oil whereas leaves with 100 PDI yielded 0.40% oil. A trend of increase in percentage of geraniol was recorded with increase in PDI. The oil from healthy leaves yielded 69.48% geraniol while oil from 100 PDI yielded 93.46% geraniol. Another major component geranyl acetate was found higher (17.82%) in the oil from healthy leaves than the oils from 100 PDI (0.95%).

Keywords: Essential oil, C. martini, C. citrates, rust, Puccinia nakanishikii

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