ISSN 2736-1756
Advanced Journal of Microbiology Research Vol. 2017
Available online at http://internationalscholarsjournals.org/journal/ajmr
© 2017 International Scholars Journals
Full Length Research Paper
Antibacterial potential of leaf extracts of Juniperus communis L. from Kumaun Himalaya
S.C. Sati and Savita Joshi*
Department of Botany, D.S.B. Campus, Kumaun University, Nainital-263002, India.
Accepted 28 May, 2016
Abstract
The sensitivity of five pathogenic multi drug resistant bacteria (Bacillus subtilis, Erwinia chrysanthemi, Escherichia coli, Agrobacterium tumefaciens and Xanthomonas phaseoli) was tested against the crude leaf organic extracts (methanol, ethanol, chloroform and hexane) and aqueous extracts of a Kumaun Himalayan gymnospermous plant Juniperus communis (Cupressaceae), employing disc diffusion method. All the extracts of Juniperus communis were found effective by showing a mark zone of inhibition except aqueous extract. The hexane extract showed maximum inhibition against the test microorganisms (ZOI, 16 – 21 mm) followed by ethanol, methanol and chloroform extract (ZOI, 6 – 17 mm). The inhibitory activity of these extracts was found very effective as compared to Ampicillin (10 mcg) and Erythromycin (15 mcg) standard antibiotics which were used as positive control against these tested microorganisms.
Key words: Kumaun Himalaya, antibacterial activity, Juniperus communis, gymnosperm, crude extract, ampicillin, erythromycin.