Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Microbiol. (2) BABT (1) Autor Pereira Jr.,Nei (3) Andrade,Carolina M.M.C. (1) Antranikian,Garo (1) Gabardo,Irene Therezinha (1) Gomes,Edelvio de Barros (1) Marins,Marcus D. M. (1) Miranda,Rita de Cássia Mendonça de (1) Soriano,Adriana Ururahy (1) Sousa,Maria de Fátima Vieira de Queiroz (1) Ururahy,Adriana F. P. (1) Vital,Ronalt L. (1) Mais... Palavra-chave Biodegradation (2) Aeration (1) Amylases (1) Archaea (1) Extremophiles (1) Jet fuel (1) Nocardia (1) Petroleum waste (1) Pullulanases (1) Thermostability (1) Xylanases (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2009 (1) 1999 (1) 1998 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Effect of aeration on biodegradation of petroleum waste Rev. Microbiol. Ururahy,Adriana F. P.; Marins,Marcus D. M.; Vital,Ronalt L.; Gabardo,Irene Therezinha; Pereira Jr.,Nei. Large amounts of oily sludge are generated as residues by the oil industry, representing a real problem for refineries. This work studied the technical viability of treating oily sludge biologically, through stimulation of native microorganisms, at bench scale. Such microorganisms were able to grow in a medium containing oily sludge as the only carbon and energy sources. Two oily sludge concentrations were studied, 5% (v/v) and 10% (v/v), with a C:N ratio of 100:1. Higher microbial populations were observed in the first case. Substrate inhibition and/or toxic effect took place in the second case. The importance of aeration on the microbial activity and on the biodegradation of the residue was ascertained. In terms of n-paraffins, pristane and phytane... Tipo: Info:eu-repo/semantics/article Palavras-chave: Petroleum waste; Biodegradation; Aeration. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000400004 Extremely thermophilic microorganisms and their polymer-hidrolytic enzymes Rev. Microbiol. Andrade,Carolina M.M.C.; Pereira Jr.,Nei; Antranikian,Garo. Thermophilic and hyperthermophilic microorganisms are found as normal inhabitants of continental and submarine volcanic areas, geothermally heated sea-sediments and hydrothermal vents and thus are considered extremophiles. Several present or potential applications of extremophilic enzymes are reviewed, especially polymer-hydrolysing enzymes, such as amylolytic and hemicellulolytic enzymes. The purpose of this review is to present the range of morphological and metabolic features among those microorganisms growing from 70oC to 100°C and to indicate potential opportunities for useful applications derived from these features. Tipo: Info:eu-repo/semantics/article Palavras-chave: Archaea; Extremophiles; Amylases; Xylanases; Pullulanases; Thermostability. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000400001 Biodegradation of stored jet fuel by a Nocardia sp. isolated from contaminated soil BABT Gomes,Edelvio de Barros; Soriano,Adriana Ururahy; Miranda,Rita de Cássia Mendonça de; Sousa,Maria de Fátima Vieira de Queiroz; Pereira Jr.,Nei. The aim of this study was to investigate the potential of degradation of an autochthonous bacterial strain, isolated from petroleum derivatives contaminated soil samples against jet fuel hydrocarbons. The autochthonous bacterial strain was characterized as Nocardia sp. Evaluation of their degrading abilities was carried out by presumptive assays as redox indicator test and by observations of surface tension decreases in aqueous medium. Degradation of jet fuel hydrocarbons was evaluated by chromatographic methods. Experiments were performed in flasks at two biostimulation rates. A bacterial strain of Pseudomonas aeruginosa UFPEDA 39 was utilized as a reference microorganism. The bacterial strain, identified as Nocardia sp, demonstrate high ability to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Nocardia; Jet fuel. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500027 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco