Journal of Medicinal and Aromatic Plant Sciences

Volume: 45 Issue: 4

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  • Original Research Article

Effect of drying techniques on essential oil yield and their quality of lemongrass [Cymbopogon flexuosus (Nees ex Steud) Wats] cultivars Krishna and CKP-25


1Centre of Advance Studies, Department of Life Sciences, Ecology Section, Manipur University, Canchipur, Imphal-795003, India
2CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), P.O. CIMAP, Kukrail Picnic Spot Road, Lucknow-226015, India
*Corresponding authors; Email: [email protected]; [email protected]

Year: 2023, Page: 143-151, Doi:

Received: Dec. 1, 2023 Accepted: Dec. 18, 2023 Published: Dec. 31, 2023


An experiment was conducted on popularly cultivated two cultivars (cv.Krishna and cv. CKP-25) of Lemongrass (C. flexuous [Nees ex Steud) Wats] at FFDC, Kannauj in August 2015 and replicated in February 2016 to examine the effect on different drying techniques by adopting other parameters. The study recorded different parameters at intervals of 7 days during plantation. Cultivar Krishna was more favourable in herbage yield, oil percentage, and oil yield than cv. CKP-25.The semi-dried condition of CV. Krishna was found to be highest in oil percentage, i.e., 1.5 ± 0.08%, followed by shade and sun-shade-dried oil percentage was found as 1.4 ± 0.07% each, and the most negligible value was by fresh leaves, i.e., 0.7 ± 0.03%, whereas cv. CKP-25 oil percentages in semi-dried and shade-dried were found to be highest at 0.9 ± 0.05% each; sun-shade-dried and fresh leaves were 0.8 ± 0.04% and 0.6 ± 0.03%, respectively. In physical analysis, the value of cv. Krishna showed optical rotation in the ranges of -3.0 to -1.62, a refractive index of 1.4785 to 1.4791 at 27 °C, and a specific gravity of 0.8901- 0.8932 at 27°C. However, cv. CKP-25 showed optical rotation in the ranges of -2.4 to -1.31, a refractive index of 1.4724- 1.4829 at 27 °C, and a Specific gravity of 0.8819- 0.8854. All the values were under the range of BIS standards. In an instrumental analysis of the GLC report, citral content was recorded cv. CKP-25 showed a higher citral content of 83.95% in semi-dried conditions than cv. Krishna of 74.5%. The cv. (Krishna) in sun-shade dried, had 79.88%, followed by shade-dried at 76.83% and fresh leaves at 75.71%. Whereas, in cv. CKP-25, sun-shade-dried 83.24%, shade-dried 82.19%, and freshly harvested leaves showed 76.31% citral content, respectively.

Keywords: Citral content, CKP-25, Cymbopogon flexuosus cv. Krishna, Drying methods, Lemongrass, Oil percentage, Physical analysis


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Cite this article

Devi MA, Singh TB, Srivastava RK.2023. Effect of drying techniques on essential oil yield and their quality of lemongrass [Cymbopogon flexuosus (Nees ex Steud) Wats] cultivars Krishna and CKP-25. J Med Aromat Plant Sci 45: 143-151.