• Bhatade A. M
• Sandikar B. M.

Thuja occidentalis is one of the common ornamental plants cultivated in all parts of India from the cypress family Cupressaceae. Common name for it is White cedar. It has been used to treat various infections in traditional medicine practice due to its medicinal relevance. Present study is focused on the evaluation of antimicrobial activity of leaves of Thuja occidentalis against Gram positive bacteria: Staphylococcus aureus and Bacillus subtilis and Gram negative bacteria: Escherichia coli and Pseudomonas aeruginosa. Ethanol and Petroleum Ether extracts of Thuja occidentalis was prepared and tested for its antimicrobial activity by agar well diffusion assay. Significant correlation has been observed between the five different concentrations of these extracts of leaves and diameter of zone of growth inhibition. The promising results suggest that the Thuja occidentalis has the effective antimicrobial activity against both the Gram positive and Gram negative bacteria. It can be served as the effective medicinal alternative to treat the human infections.

Thuja occidentalis, antimicrobial activity, Minimum Inhibitory Concentration

"Evaluation of Antimicrobial Activity of Thuja occidentalis Leaves Extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 9, page no.f200-f204, September-2024, Available :http://www.jetir.org/papers/JETIR2409552.pdf

"Evaluation of Antimicrobial Activity of Thuja occidentalis Leaves Extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 9, page no. ppf200-f204, September-2024, Available at : http://www.jetir.org/papers/JETIR2409552.pdf