Results: 27

Temporal assessment of microbial communities in soils of two contrasting mangroves

Braz. j. microbiol; 49 (1), 2018
ABSTRACT Variations in microbial communities promoted by alterations in environmental conditions are reflected in similarities/differences both at taxonomic and functional levels. Here we used a natural gradient within mangroves from seashore to upland, to contrast the natural variability in bacteria, cy...

Modelación de riesgos hacia los trabajadores y comunidad por emisiones de gas licuado de petróleo, utilizando software Slab View en la ciudad de Los Ángeles, Chile

Cienc. Trab; 19 (60), 2017
RESUMEN: 21. Con el software SLAB VIEW se realizaron modelaciones para determi nar cuantitativamente los riesgos hacia los trabajadores y comunidad por emisiones accidentales de gas licuado de petróleo, desde fuentes de uso y almacenamiento, dentro del radio urbano de Los Ángeles (Chile). Se modelaron ...

Characterization of dioxygenases and biosurfactants produced by crude oil degrading soil bacteria

Braz. j. microbiol; 48 (4), 2017
ABSTRACT Role of microbes in bioremediation of oil spills has become inevitable owing to their eco friendly nature. This study focused on the isolation and characterization of bacterial strains with superior oil degrading potential from crude-oil contaminated soil. Three such bacterial strains were selec...

Ideias e economia nas reformas das políticas públicas do setor de petróleo brasileiro: 1995 a 2010

Resumo Este trabalho examina as mudanças no gerenciamento das receitas petrolíferas desde os anos 1990, período das reformas orientadas para o mercado, até o novo marco regulatório do petróleo aprovado em 2010. Baseado na combinação da perspectiva de longo prazo do institucionalismo histórico e ...

Draft genome analysis of Dietzia sp. 111N12-1, isolated from the South China Sea with bioremediation activity

Braz. j. microbiol; 48 (3), 2017
Abstract Dietzia sp. 111N12-1, isolated from the seawater of South China Sea, shows strong petroleum hydrocarbons degradation activity. Here, we report the draft sequence of approximately 3.7-Mbp genome of this strain. To the best of our knowledge, this is the first genome sequence of Dietzia strain isol...

Uso de Leersia hexandra (Poaceae) en la fitorremediación de suelos contaminados con petróleo fresco e intemperizado

Rev. biol. trop; 65 (1), 2017
ResumenLa industria petrolera ha generado derrames crónicos de petróleo y su acumulación en Gleysoles en zonas anegadas en el estado de Tabasco, en el sureste de México. El anegamiento es un factor que limita el uso de tecnologías de remediación por el alto costo y los bajos niveles de degradación...

Estresse psicossocial no trabalho e o padrão de consumo de álcool em trabalhadores offshore

Resumo: Os objetivos foram avaliar a associação entre o estresse psicossocial no trabalho e o padrão de consumo de álcool em trabalhadores offshore. Trata-se de um estudo transversal realizado com 210 prestadores de serviço em instalações petrolíferas situadas no Estado do Rio de Janeiro, Brasil,...

Evaluation of bacterial diversity recovered from petroleum samples using different physical matrices

Braz. j. microbiol; 47 (3), 2016
ABSTRACT Unraveling the microbial diversity and its complexity in petroleum reservoir environments has been a challenge throughout the years. Despite the techniques developed in order to improve methodologies involving DNA extraction from crude oil, microbial enrichments using different culture condition...

Sphingomonas from petroleum-contaminated soils in Shenfu, China and their PAHs degradation abilities

Braz. j. microbiol; 47 (2), 2016
Abstract Members of the Sphingomonas genus are often isolated from petroleum-contaminated soils due to their unique abilities to degrade polycyclic aromatic hydrocarbons (PAHs), which are important for in situ bioremediation. In this study, a combined phenotypic and genotypic approach using streptomycin-...

Application of bacterial and yeast biosurfactants for enhanced removal and biodegradation of motor oil from contaminated sand

Electron. j. biotechnol; 18 (6), 2015
Background This study investigated the potential application of two biosurfactants for enhanced removal capability and biodegradation of motor oil contaminated sand under laboratory conditions. The biosurfactants were produced by the yeast Candida sphaerica and by the bacterium Bacillus sp. cultivated in...