1000 resultados para Plantas vegetais
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The increase of the antimicrobial resistance and its propagation around the world are the biggest threats to the public health care and to the treatment of diseases caused by microorganisms. Nowadays the antimicrobial resistance has increased abruptly. The essential oils are volatile and aromatic compounds derived from parts of plants as flowers, leafs, fruits, seeds, roots, sprouts, among others. The activity of extracts and essential oils of several plant species have been recognized and studied by empirical methods since a long time, but its antimicrobial activities were confirmed recently. Medicinal plants are used in folk medicine as medicines, antibiotic, analgesic, sedative and anti-inflammatory. The use of medicinal plants like source of medicines is an alternative of therapeutics for diseases treatment. In Brazil, studies with this goal are very important, once medicinal plants have been used as a choice of treatment and prevention of infections and diseases in health areas. Considering the fact that some products from medicinal plants have antimicrobial properties it is expected that using screening programs, new potential medicaments could be developed. Otherwise, scientific researches focused on determining therapeutic potential of plants are limited, there are lack of scientific studies which confirms the potential antibiotics properties of a large number of plants. The aim of the present study is determinate the antimicrobial activity of 10 medicinal species belonging to CPMA - Collection of Medicinal and Aromatic Plants from CPQBA/UNICAMP. The minimal inhibitory (MIC) and minimal bactericidal or fungicidal concentration (MBC) will be determined against the bacteria Escherichia coli, Pseudomonas aeruginosa, Salmonella choleraesuis, Staphylococcus aureus and the yeast Candida albicans. Furthermore, will be conducted chemical identification and fractionation of essential oils and extract with better activity
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Biociências - FCLAS
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Pós-graduação em Agronomia (Horticultura) - FCA
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Pós-graduação em Agronomia - FEIS
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Pós-graduação em Agronomia (Horticultura) - FCA
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Ornamental plants are important in the culture and welfare of city dwellers in the Amazon. This study aimed to perform a characterization of species of ornamental use in urban backyards of Rio Branco and relation with social aspects of the respondents. Semi-structured interviews featuring ornamental species along with analysis of social aspects of urban respondents of the 132 backyards in Rio Branco, Acre, Amazon between 2009 and 2011. Selected for this study were neighborhoods Aeroporto Velho, Placas and Novo Horizonte, located on the periphery of the municipality. Were detected 140 ornamental species belonging to 49 different botanical families, especially Euphorbiaceae (7%), Arecaceae (6.4%) and Araceae (5%). Ornamental species recorded, 57.5% are exotic, 16% have medicinal use and 44% herbaceous. Regression analysis of data across the diversity of species, area and social parameters of the respondents was not significant. The cultivation of ornamental plants in urban backyards Rio Branco assists in the ambience of the residence, landscape improvement, generates welfare for residents at leisure space beyond the conservation of genetic resources.
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A utilização de compostos naturais na medicina de populações tradicionais é uma realidade em todo o mundo e o cerrado brasileiro apresenta grande diversidade de vegetais com uso potencial no tratamento de infecções por microrganismos oportunistas. Esse estudo avaliou a atividade antimicrobiana dos extratos vegetais do cerrado brasileiro sobre microrganismos oportunistas e superinfectantes. Nos testes foram preparados extratos hidroalcoólicos e aquosos de 22 espécies de plantas utilizadas nas regiões Norte, Nordeste e Centro-Oeste como parte da medicina popular. Esses extratos foram testados sobre Enterococcus faecalis ATCC 19433 e Pseudomonas aeruginosa ATCC 10145 e dez isolados clínicos de cada uma dessas espécies microbianas. Inicialmente foi realizada uma triagem para se determinar a atividade antimicrobiana dos extratos. Em seguida, foram realizados testes para avaliar a maior diluição inibitória dos extratos por meio do método de diluição em caldo e testes de atividade inibitória em biofilme. Os resultados demonstraram que embora aproximadamente 20% de todos os extratos mostraram atividade inibitória sobre algum dos microrganismos alvo, os mais ativos foram os extratos aquosos e hidroalcoólicos de araçá e aroeira, se mostrando ativos frente a todos os microrganismos.
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Pós-graduação em Agronomia (Horticultura) - FCA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV
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Pós-graduação em Ciência Florestal - FCA
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)