Antimicrobial activity of Fabaceae species used in Yucatan traditional medicine.

The methanol and water extracts of six Fabaceae species, traditionally used in Mayan medicine for the treatment of diarrhoea and eye infections, were phytochemically screened and tested for in vitro antimicrobial activity. Four species showed activity against Gram positive bacteria, five exhibited some activity against Candida albicans, two exhibited activity against Aspergillus niger and only one, Mimosa pigra, inhibited growth of Pseudomonas aeruginosa. None of the extracts was active against Escherichia coli.

[Evaluation of a selective medium with dilutions for the isolation of Actinobacillus pleuropneumoniae and Haemophilus spp. in pigs]. / Evaluación de un medio selectivo con diluciones para el aislamiento de Actinobacillus pleuropneumoniae y Haemophilus spp. en cerdos.

The aim of the present research was to evaluate the efficiency of a method used to enhance the isolation of Actinobacillus pleuropneumoniae and Haemophilus spp. 134 samples of pneumonic lungs of swine were directly grown in blood agar medium, 120 of these samples were simultaneously processed by a dilution method inoculating then into a selective and enriched broth (1% poly-enriched, 5% yeast extract. 5 micrograms/ml bacitracin, 1 microgram/ml lincomycin and 1 microgram/ml crystal violet). The dilution method proved to be more efficient than the direct one.