2018, Vol. 6 Issue 1, Part A
Chemical composition, antimicrobial and antioxidant activities of the essential oil of Conyza canadensis growing wild in Kashmir valley
AUTHOR(S): Romaisa Lateef, Khursheed A Bhat, Suresh Chandra and Javid A Banday
ABSTRACT:Chemical composition of the essential oil of Conyza canadensis has been carried out using Gas chromatography-mass spectrometry (GC-MS). A total of 26 components, constituting 93.94% of the total volatile constituents present in the aerial part, have been identified. The hydrodistilled extract of the aerial part of C. canadensis was dominated mainly by monoterpene hydrocarbons (53.08%) followed by sesquiterpene hydrocarbons (37.25%). The major components identified in the essential oil were limonene (23.78%), (Z)-lachnophyllum ester (21.25%), (E)-β-ocimene (16.02%), β-pinene (11.83%) and (E)-β-farnesene (7.84%). The essential oil and the individual constituents exhibited significant antibacterial activity against the tested Gram-positive and Gram-negative food-borne bacteria with MIC values in the range of 12.00-40.00 μg/mL for the essential oil and 32.00-600 μg/mL for the individual constituents, respectively. The essential oil showed maximum inhibitory activity against Candida albicans and Candida parapsilosis with MICs of 2.50 and 1.80 μg/mL, respectively. The essential oil showed promising antioxidant activity using DPPH (2, 2-diphenyl-1-picrylhydrazyl) and hydroxyl radical scavenging assays.
Pages: 35-41 | 786 Views 65 Downloads
How to cite this article:
Romaisa Lateef, Khursheed A Bhat, Suresh Chandra and Javid A Banday. Chemical composition, antimicrobial and antioxidant activities of the essential oil of Conyza canadensis growing wild in Kashmir valley . American Journal of Essential Oils and Natural Products. 2018; 6(1): 35-41.