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. 2012 Aug;18(3):173-6.
doi: 10.1016/j.ctcp.2012.02.003. Epub 2012 Apr 25.

Antimicrobial Activity of Calendula Officinalis Petal Extracts Against Fungi, as Well as Gram-negative and Gram-positive Clinical Pathogens

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Antimicrobial Activity of Calendula Officinalis Petal Extracts Against Fungi, as Well as Gram-negative and Gram-positive Clinical Pathogens

Efstratios Efstratiou et al. Complement Ther Clin Pract. .

Abstract

The aim of the present study was to assess the antimicrobial activity of methanol and ethanol extracts of pot marigold (Calendula officinalis) petals against clinical pathogens. The antimicrobial potential of C. officinalis extracts was evaluated against a panel of microorganisms isolated from patients at the Belfast City Hospital (BCH), including bacteria and fungi, using disc diffusion assay. Methanol extract of C. officinalis exhibited better antibacterial activity against most of the bacteria tested, than ethanol extract. Both methanol and ethanol extracts showed excellent antifungal activity against tested strains of fungi, while comparing with Fluconazole.

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