Oil Peak
Mostrando 13-24 de 65 artigos, teses e dissertações.
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13. Particle size and cholesterol content of a mayonnaise formulated by OSA-modified potato starch
Egg yolk was partially replaced (0, 25, 50, 75, and 100%) with octenyl succinic anhydride (OSA)-modified potato starch in a reduced-fat mayonnaise formulation to curtail the problems associated with high cholesterol and induced allergic reactions. The physicochemical properties included parameters such as: pH, fat content, and emulsion stability of the formu
Food Sci. Technol. Publicado em: 2015-03
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14. Molecular characterization of a Xylanase-producing fungus isolated from fouled soil
Xylanase (EC 3. 2. 1. 8), hydrolyzes xylo-oligosaccharides into D-xylose and required for complete hydrolysis of native cellulose and biomass conversion. It has broad range of applications in the pulp and paper, pharmaceutical and Agri-food industries. Fifty fungal species were isolated from the fouled soil around an oil refinery and screened for the product
Braz. J. Microbiol.. Publicado em: 2014-12
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15. Caracterização físico-química do óleo essencial da Siparuna guianensis Aublet
Thermal and spectroscopic analyses of essential oil extracted from Siparuna guianensis Aublet, an aromatic plant belonging to medicinal ethnobotany family Siparunaceae, were carried out. The plant is known throughout the North and Northeast of Brazil by the name negramina and has wide application as a natural insect repellent. Thermogravimetric analyses were
Quím. Nova. Publicado em: 2014-06
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16. Avaliação de metodologia eletroquímica no monitoramento da conversão de óleo de girassol em biodiesel
The development of analytical procedures to evaluate transesterification process is still a challenge in biodiesel production. Then, this paper shows an electroanalytical methodology to transesterification process assessment, proposing the application of nanostructured TiO2 electrodes. The results showed, for sunflower oil - methanol reaction catalyzed by KO
Química Nova. Publicado em: 2012
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17. Desenvolvimento, caracterização físico-química e avaliação farmacocinética de nanopartículas auto-organizadas de quitosana / Development, physico-chemical characterization and pharmacokinetic evaluation of self-assembly chitosan nanoparticules
Objectives: Nanoparticles (NP) are useful to modulate the pharmacokinetics (PK) of drugs. The aim of this study was to develop innovative self-assembly nanovesicles (NV) constituted of chitosan and lecithin with isopropyl myristate (IPM) as oil core, able to modify the PK plasma profile of clozapine (CZP) and valproic acid (VPA). Methods: The NV were obtaine
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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18. O impacto da interação universidade-empresa na produtividade dos pesquisadores: uma análise dos docentes coordenadores de projetos com apoio da Petrobrás/ANP / The impact of the interaction between university and firms: a analysis of coordinators of research projects with support of ANP/Petrobrás
The research question focuses on assessing the impact on the scientific productivity of academic researchers involved in projects financed by the Oil Funds. We built a database on the performance of 784 Brazilian researchers, grouped into two groups, funded and not funded by Petrobrás/ANP. The evidences show that the impact of University-Petrobrás interact
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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19. A importância da industrialização do xisto brasileiro frente ao cenário energético mundial
Esse artigo discute a importância da industrialização do xisto brasileiro, tendo, como base, fatores como: seguridade do sistema de energia nacional, a geopolítica mundial do petróleo, quantidade dos recursos, custo de produção, preço do petróleo, impactos ambientais e as reservas de petróleo nacionais. O trabalho mostra que a industrialização do
Rem: Revista Escola de Minas. Publicado em: 2010-12
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20. Fenología reproductiva y productividad de Oenocarpus bataua (Mart.) en bosques inundables del Chocó Biogeográfico, Colombia
Oenocarpus bataua (Mart.) is a palm species forming highly dense stands in flooded forests of the Chocó Biogeographic region. This species is considered promising because its fruits contain protein and high quality oil; therefore, periodic harvests of fruits are a potential source of food and income to local communities and could contribute to improve their
Biota Neotropica. Publicado em: 2010-12
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21. Preparação e caracterização de uma mistura eutética baseada em um derivado de óleo essencial extraído do Syzygium aromaticum L. / Preparation and characterization of a eutectic mixture based in an essential oil derivative extracted from Syzygium aromaticum L.
The Syzygium aromaticum L. plant produces the cloves buds which are dried. From these dried buds the essential oil is extracted. The major compound is eugenol. Some of eugenols pharmacological properties include fungicidal, bactericidal, anesthetic, and other activities. However, eugenol (EUG) was modified to eugenyl acetate (EA) by adding the acetate group
Publicado em: 2010
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22. Morphological and bioecological aspects of Epichrysocaris burwelli (Hymenoptera, Eulophidae) the gall wasp of Corymbia citriodora (Myrtaceae) leaves / Aspectos morfo-bioecológicos de Epichrysocharis burwelli (Eulophidae, Hymenoptera), vespa-das-galhas das folhas de Corymbia citriodora
This research deals with aspects of morphology, biology and ecology of Epichrysocaris burwelli a micro-wasp inducing galls on leaves of Corymbia citriodora, and recently introduced in Brazil. The following parameters were studied: percentage of galls on the leaf, time of adult emergence, adult longevity, sex ratio and characterization of the male, duration o
Publicado em: 2010
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23. Energía calorífica necesaria, durante la soldadura en servicio de tuberías para el transporte de petróleo
The thermal behavior during in service repair welding of oil transportation pipes was studied by finite element analysis in the present paper. Regression equations that relate peak temperature at the inner surface of the pipe and cooling time between 800 and 500ºC in the heat affected zone to the welding heat input, preheat temperature, and convection heat
Soldagem & Inspeção. Publicado em: 2009-03
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24. Steam and nitrogen injection in improved heavy oil recovery / Injeção de vapor e nitrogenio na recuperação melhorada de oleo pesado
Thermal recovery methods, especially steam injection, are at the forefront of most onshore projects of heavy oil. The continuous injection and, recently, the steam assisted gravity drainage yield high recoveries. The ratio of the volume of steam injected per volume of produced oil is a decisive parameter in the success of steam flood projects. In the present
Publicado em: 2009