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Ciencia, docencia y tecnología

On-line version ISSN 1851-1716


BASUALDO, Juan A et al. Study of the antimicrobial activity of thermal mud from Copahue (Neuquén, Argentina). Cienc. docencia tecnol. [online]. 2011, n.43, pp.217-235. ISSN 1851-1716.

The antimicrobial activity of thermal mud from Copahue Thermal Complex against microorganisms from human microbiota, community and hospital infections agents and AT CC strains was investigated. Thermal mud samples were obtained from Sulfurous Lagoon located within the Complex. To determine the antimicrobial properties of the liquid phase (LP) of Copahue thermal mud we used in vitro assays, agar diffusion test and bactericidal rate, using gram-positive cocci, gram-negative bacilli, yeast and AT CC strains. Inhibition zones around the disk against Staphylococcus aureus and Candida albicans was showed with the first technique. No inhibition zones were observed for the rest of the microorganisms assayed. With the killing curve technique, inhibitory action before 6 h of incubation was observed against S. aureus, E. faecalis, S. epidermidis and C. albicans while there was no inhibition against gram negative bacillus. This is the first study that demonstrates the antimicrobial activity of LP on certain assayed strains.

Keywords : Health; Health spa; Antimicrobial activity; Mud; Copahue.

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