Luiz Filipe Damé Schuch

Atividade in vitro do óleo essencial de Origanum vulgare frente à Sporothrix Schenckii

In vitro activity of the essential oil Origanum vulgare against Sporothrix schenckii was determined by the MIC (Minimum Inhibitory Concentration). For this, seven samples of S. schenckii were studied, two isolated from two cases of human sporotrichosis and five isolated from cats. Analysis of the essential oil was carried out in a gas chromatograph (GC/FID) for the identification and quantification of thymol and carvacrol (antifungal agents). MIC was obtained based on the microdilution method according to the adapted document NCCLS-M 27A2 for fitopharmacy. All the isolates presented sensibility to the essential oil. S. schenckii was inhibited in a concentration of 0.25% (250m l/ml). Chromatographic analysis showed that thymol concentration was bigger than carvacrol. The antifungal activity demonstrated by the essential oil of O. vulgare against S. Schenckii stimulates the accomplishment of more studies, including in vivo studies.

Eficácia da clorexidina-cetrimida na desinfecção ambiental contra Aspergillus spp.

The study evaluated the in loco activity of chlorexidine-cetrimide for environmental control of Aspergillus spp. considering the climatic influence and population variations, in a recuperation center of marine animals. Samples of air were collected throughout two years by the sediment method, and the disinfection program was established in the second year. Data collected during the two years were statistically compared by Epinfo 8.0. program. It was demonstrated that both population and climate had no influence on the fungal isolation, and the disinfection program with chlorexidine-cetrimide was considered effective in the reduction of conidia Aspergillus concentration indoor.