Carbon Partition
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Liquid-liquid equilibria in aqueous two-phase ethanol/salt systems at different temperatures and their application to anthocyanins extraction
Abstract Aqueous two-phase systems (ATPS) are formed by mixtures of chemical species that, under certain conditions, separate into two immiscible phases, with water as the major component in global terms and, at lower concentrations, polymers, salts, ionic liquids and alcohols, depending on the system type. Different parameters influence ATPS equilibrium suc
Food Sci. Technol. Publicado em: 16/05/2019
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2. Classes of secondary metabolites identified in three legume species
The objective of this study was to identify secondary metabolite classes of tropical kudzu, perennial soybean and archer legumes through identification by phytochemical screening and confirmation by infrared (IR), ¹H and carbon-13 NMR spectroscopy of fractions obtained by organic solvents partition of crude extracts. These analyses allowed for proposing the
R. Bras. Zootec.. Publicado em: 2013-10
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3. Coeficiente de partição do C O IND 2 no processo de injeção de água carbonatada / C O IND 2 partition coefficient in the process of carbonated water injection
O processo de recuperação de óleo pelo deslocamento com CO2 é um método líder na recuperação melhorada de óleos leves e médios. No entanto, a rápida irrupção do CO2 no poço produtor e a baixa eficiência de varrido diminuem sua atratividade. Uma alternativa mais eficiente é a injeção de água carbonatada (IAC). Um dos fatores mais importante
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2012
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4. ESTIMATIVA DE BIOMASSA AÉREA E TEOR DE CARBONO DA ESPÉCIE RHIZOPHORA MANGLE L. / ABOVE-GROUND BIOMASS ESTIMATION AND CARBON STOCK IN RHIZOPHORA MANGLE L.
The interest in quantifying mangrove forest biomass has increased in recent years due to the potential that tropical forests have in accumulating atmospheric carbon. The high organic carbon in mangrove attributes an important role in the estimation of global carbon and the processes of climate change mitigation. The objective of this study was to develop all
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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5. Influence of organobentonite structure on toluene adsorption from water solution
Due to increase water pollution by organic compound derived from hydrocarbons such as toluene, several alternative technologies for remediation of polluted water have been originated. In this work natural bentonites were modified with cetyltrimethylammonium (CTMA+) for obtaining organophilic bentonites. The obtained CTMA-bentonites would be suitable for use
Mat. Res.. Publicado em: 02/10/2012
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6. Comparison of two peptide radiotracers for prostate carcinoma targeting
OBJECTIVES: Scintigraphy is generally not the first choice treatment for prostate cancer, although successful studies using bombesin analog radiopeptides have been performed. Recently, a novel peptide obtained using a phage display library demonstrated an affinity for prostate tumor cells. The aim of this study was to compare the use of a bombesin analog to
Clinics. Publicado em: 2012
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7. Efeito das adições de tratamentos criogênicos e de alívio de tensões no ciclo térmico do aço ferramenta AISI D2. / The effect of cryogenic and stress relief treatments additions in the thermal cycle of the AISI D2 tool steel.
Foram estudados os efeitos da introdução de etapas de tratamento criogênico e do alívio de tensões no ciclo térmico do aço ferramenta para trabalho a frio AISI D2. Variaram-se as temperaturas de tratamento criogênico, sendo elas principalmente: criogênica (-196°C) e subzero (-80°C). Foram variados os tempos de permanência às temperaturas criogê
Publicado em: 2011
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8. Expressão de três isoformas de galactinol sintase em plantas de Coffea arabica L. submetidas a estresses abióticos
Raffinose family oligosaccharides (RFOs) play multiple roles in plants, mainly in response to environmental stresses such as drought, salinity and extreme temperatures. Galactinol synthase (GolS) is the enzyme that catalyzes the first step of the biosynthesis of oligosaccharides of RFOs and plays an important regulatory role in the partition of carbon betwee
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2009
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9. Nitrogen transformations in soil-plant system after herbicide application / Transformações do nitrogênio no sistema solo-planta após aplicação de herbicidas
Herbicide adoption might modify nitrogen dynamics in agroecossystems and, for consequence, nutrient availability for plants and microorganisms. These modifications may occur because of plant physiologic changes and/or due to herbicide effects on activity and composition of soil microbial community, which has important functions on system N modifications. In
Publicado em: 2009
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10. Enriquecimento com CO2 por meio de compostagem para a cultura do tomateiro em ambiente protegido / CO2 enrichment by compost pile for tomato plant culture in protected environment
The objective of this study was to evaluate the use of composting pile as a CO2 source and its effect on tomato productivity, fruits quality and photoassimilate partition. Two autumn-winter crops in years 2005 and 2006 had been carried at Department of Plant Science, at Federal University of Viçosa, Minas Gerais State. It was used a randomized complete bloc
Publicado em: 2008
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11. Optimization of culture conditions the endophytic fungus Papulaspora immersa for production of bioactivities substance 2008. / Otimização das condições de cultivo do fungo Papulaspora immersa para produção de substâncias bioativas
Due to the increase in the microbial resistance to the current antibiotics, investigations in substances with antimicrobial activities, as well as substances with antiparasite and antitumoral activities, become relevant. Among the important natural sources in the development of new drugs, the secondary metabolites of microorganism have showed promising resul
Publicado em: 2008
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12. Determinação do coeficiente de distribuição (Kd) de benzo(a)pireno em solo por isotermas de sorção
Leaking of diesel oil from gas stations is frequent in Brazil. The presence of polycyclic aromatic hydrocarbons (PAHs), which are highly toxic is an indication of contamination by heavy hydrocarbons from diesel oil. Here were present the determination of the distribution coefficient (Kd) of benzo(a)pyrene (the most carcinogenic of the PAHs) in tropical soils
Química Nova. Publicado em: 2006-07