9 research outputs found

    Avaliação da atividade antimicrobiana dos óleos essenciais de Ocimum gratissimum, Lippia alba e Mentha x piperita frente à bactéria Aeromonas hydrophila.

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    O objetivo deste estudo foi avaliar a atividade antimicrobiana dos óleos essenciais de Ocimum gratissimum, Lippia alba e Mentha x piperita para Aeromonas hydrophila. Nesta avaliação utilizou-se a técnica de disco-difusão em Ágar.Resumo 0375

    Piscina y gimnasio olímpico

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    Both buildings have a rectangular prismatic shape, and are surrounded by extensive car parks, where 1.080 cars can be accommodated. To cover the area, which is 111.90 by 101.60 m in plan area, and the gymnasium, which is 78.70 by 76.20 m, a double curvature suspended roof has been provided, avoiding the need of any columns. Work was begum in March 1967, and the site is 9.2 km from the Olympic Village and 9.8 km from the Plaza Mayor.Ambos volúmenes presentan una forma de prisma rectangular y están circundados por amplios estacionamientos, con capacidad para 1.080 automóviles. Para cubrir la Piscina de 111,90 x 101,60, y el Gimnasio, de 78,70 x 76,20, se ha diseñado un tipo de cubierta colgante de doble curvatura, evitando así columnas intermedias. Las obras se iniciaron en marzo de 1967, y están situadas a 9,2 km de la Villa Olímpica y a 9,8 km de la Plaza Mayor

    Piper Essential Oils Inhibit Rhizopus oryzae Growth, Biofilm Formation, and Rhizopuspepsin Activity

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    Piper is the largest genus of the Piperaceae family. The species of this genus have diverse biological activities and are used in pharmacopeia throughout the world. They are also used in folk medicine for treatment of many diseases in several countries including Brazil, China, India, Jamaica, and Mexico. In Brazil, Piper species are distributed throughout the national territory, making this genus a good candidate for biological activity screening. During our studies with Piper essential oils, we evaluated its activity against Rhizopus oryzae, the main agent of mucormycosis. The main compounds of seven Piper essential oils analyzed were Piper callosum—safrole (53.8%), P. aduncum—dillapiole (76.0%), P. hispidinervum—safrole (91.4%), P. marginatum—propiopiperone (13.2%), P. hispidum—γ-terpinene (30.9%), P. tuberculatum—(E)-caryophyllene (30.1%), and Piper sp.—linalool (14.6%). The minimum inhibitory concentration of Piper essential oils against R. oryzae ranged from 78.12 to >1250 μg/mL. The best result of total inhibition of biofilm formation was obtained with Piper sp. starting from 4.88 μg/mL. Considering the bioactive potential of EOs against planktonic cells and biofilm formation of R. oryzae could be of great interest for development of antimicrobials for therapeutic use in treatment of fungal infection
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