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Published:
Jun 11, 2014DOI:
10.4314/ahs.v14i2.12Keywords:
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Main Article Content
Evaluation of antibacterial, antifungal and modulatory activity of methanol and ethanol extracts of Padina sanctae-crucis
Abstract
Background: Multi-resistant microorganisms such as Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Candida tropicalis e Candida krusei are the main causes of microbial infections. Padina sanctae-crucis is a seaweed often used to check the contamination of ecosystems by materials such as heavy metals, but studies of the antimicrobial activity of the same seaweed were not found.
Methods: The tests for the minimum inhibitory concentration and modulation of microbial resistance, with the use of ethanolic and methanolic extracts of Padina Sanctae-cruces combined with drugs of the class of aminoglycosides and antifungal were used to evaluate the activity against the cited microorganisms.
Results: Was observed a modulation of antibiotic activity between the natural products and the E. coli and S. aureus strains, indicating a synergism and antagonism respectively.
Conclusions: The results showed a moderate modulatory effect against some microorganisms studied.
Keywords: multi-resistant microorganisms, modulation, Padina Sanctae-crucis, antimicrobial activity.
