ABSTRACT

Four essential oils (from Lavender, Basil, Rosemary and Turmeric) native to Saudi Arabia have been selected to test the antimicrobial activity. Antimicrobial activity was revealed using standard pathogenic (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa) bacteria and fungus (Candida albicans). Lavender, Basil and Rosemary (native to the Albaha province) showed very strong antibacterial activity against all tested strains at both full strength and reduced concentrations. These essential oils showed different bactericidal and fungicidal activities when tested by direct application. These results suggest that all the tested essential oils might be used as broad-spectrum anti-microbial agents for decontaminating an indoor environment. Furthermore; in the present study a large variability in the potential antimicrobial activity has also been observed. It has been demonstrated that the Lavender, Basil and Rosemary exhibited exceptional antibacterial and anti-candida properties. However; least sensitivity of strains was found towards the turmeric oil. Moreover; the higher susceptibility of Gram-positive bacteria when compared with Gram-negative strains was found. Keywords: Antibacterial; Anti-Candida; Essential oils; Clinical strains; Saudi Arabia

https://ijbpas.com/pdf/2019/November/MS_IJBPAS_2019_4827.pdf

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https://doi.org/10.31032/IJBPAS/2019/8.10.4827