Antibacterial Activity of Cinnamon Oil and Extract Against Common Bacterial Pathogens

Abstract

The study expected to survey the in-vitro hostile to bacterial effect of cinnamon oil and extract tested against gram-positive (Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus pyogenes, and Enterococcus faecalis) and gram-negative (Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa, Proteus mirabilis, Salmonella typhi) pathogens by using agar well diffusion method. According to the result cinnamon oil had best inhibitory activity showing widest zone of 44mm against Klebsiella pneumoniae and a zone of 37mm against Escherichia coli, Streptococcus pyogenes. In the case of cinnamon extract have low antibacterial activity as compare to oil, showing maximum 18mm zone against Streptococcus pyogenes and zone of 17mm against Klebsiella pneumoniae, Escherichia coli. This study was proved that cinnamon essential oil and extract were important as herbal drug to use in pharmaceutical industries to treatment infectious diseases.