Abstract Paper


Journal of Functional Materials and Bio-molecules

Title : Determination of Antibacterial Activity of Essential Oils Against Gram Negative Bacterial Pathogens
Author(s) : S. Nagalakshmi, P. Saranraj,P. Sivasakthivelan
Article Information : Volume 3 - Issue 1 (June-2019) , pp 13-17
Affiliation(s) : Assistant Professor

Abstract :

The present study was aimed to study the Minimum Inhibitory Concentration (MIC) and Percentage Growth Inhibition of Essential oils against three different Gram negative bacterial pathogens (Escherichia coli, Salmonella typhi and Proteus mirabilis). The selected Essential oil samples were collected from the Sidha Medicine Shop, Tirupattur, Vellore district, Tamil Nadu, India. The standard Broth dilution method was used for the determination of Minimum Inhibitory Concentration (MIC) of Essential oils against Gram negative bacteria. The Minimum Inhibitory Concentration (MIC) and Percentage Growth Inhibition were determined in various concentrations of Essential oils viz., 25 µl/ml, 50 µl/ml, 75 µl/ml and 100 µ/ml. The Essential oils exhibited the inhibitory activity against all the three Gram negative bacteria in all the concentrations. Among the seven Essential oils tested, Pungam oil has the capacity of inhibiting the Gram negative pathogenic coliform Escherichia coli. The Neem oil has the capacity of inhibiting the Typhoid casing bacteria Salmonella typhi and Swarming motility showing bacteria Proteus mirabilis. Finally, it was concluded that the Essential oils are the best source for treating the Gram negative bacterial diseases in human beings.


Keywords : Essential oils, Minimum inhibitory concentration (MIC), Percentage bacterial growth inhibition, Escherichia coli, Salmonella typhi and Proteus mirabilis
Document Type : Research Paper
Publication date : July 17, 2019