2 Methyl 1 Butanol
Mostrando 13-24 de 40 artigos, teses e dissertações.
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13. Determinação experimental e modelagem termodinâmica de dados de equilíbrio líquido-vapor de misturas de álcoois superiores / Experimental determination and thermodynamic modeling of vapor-liquid equilibrium data of mixtures of higher alcohols
Dados de equilíbrio são úteis para o projeto e otimização de processos que envolvem separação de fases, como destilação e extração. Os álcoois superiores são subprodutos do processo de destilação relacionados com o aroma de bebidas alcoólicas e que, quando purificados podem agir como solvente. Esse estudo tem por objetivo a obtenção de dado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2011
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14. Chiral liquid-crystalline polyacrilates from (S)-(-)-2-methyl-1-butanol: Synthesis, mesomorphic properties and light scattering
A síntese e o comportamento mesomórfico de dois poliacrilatos quirais líquido cristalinos com cadeia lateral derivados do (S)-(-)-2-metil-1-butanol são descritos. Estes novos poliacrilatos quirais mostram dependência das temperaturas de transição de fase com a massa molar e o comprimento do espaçador. O poliacrilato contendo quatro unidades metilêni
Publicado em: 2010
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15. Efeito dos extratos do albedo de Citrus sinensis, Lentinula edodes, Agaricus blazei e dos compostos orgânicos voláteis produzidos por Saccharomyces cerevisiae no controle da mancha preta dos citros / Effect of albedo extracts of Citrus sinensis, Lentinula edodes, Agaricus blazei and volatile organic compounds produced by Saccharomyces cerevisiae in the control of citrus black spot
The citrus black spot is a disease that restricts the export of Brazilian oranges to the countries in Europe. Except for Citrus aurantium and its hybrids, all other varieties are susceptible to the pathogen. Thus, there is great interest that this disease does not occur, since it is considered a quarantine A1 disease. Problems associated with the acquisition
Publicado em: 2010
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16. Estudo termodinamico do equilibrio liquido-liquido visando a remoção do enxofre do oleo diesel com liquidos ionicos / Thermodynamic study of liquid-liquid equilibrium aiming sulfur removal by using ionic liquids
The sulfur contaminants more difficult to remove from diesel oil by hydrodesulfuration process (HDS) are the sterically hindered aromatic compounds, like dibenzothiophene (DBT), and its alkylated derivatives 4-methyl-dibenzothiophene (4-MDBT) and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT), commonly called DBTs. Increasing the number of methyl groups attached
Publicado em: 2009
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17. Chemical study and evaluation of cytotoxic activity from ascidians Didemnum psammatodes (Sluiter, 1895) and Eudistoma vannamei Millar, 1977 (Tunicata: Ascidiacea) / Estudo químico e avaliação da atividade citotóxica das ascídias Didemnum psammatodes(Sluiter, 1885) e Eudistoma vannameiMillar, 1977 (Tunicata: Ascidiacea)
Samples of Didemnum psammatodes were collected in Icapui (Ceara State) and Trairi (Ceara State). The methanolic extract from D. psammatodes, acquired from Icapui, was submitted to fractionation and purification through several chromatographic techniques and were obtained four nucleosides (2?-deoxyuridine, 2- deoxyinosine, thyimidine, and 2?-deoxyguanosine),
Publicado em: 2006
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18. PHYTOCHEMICAL AND BIOLOGICAL STUDY OF DIFFERENTS SPECIE OF Rubus GENUS FOUND IN THE CATARINENSE FLORA / ESTUDO FITOQUÍMICO E BIOLÓGICO DE DUAS ESPÉCIES DO GÊNERO Rubus ENCONTRADAS NA FLORA CATARINENSE
O gênero Rubus tem se destacado pelo uso popular devido aos frutos que produzem e suas folhas que são usadas com propósito terapêutico para tratar diversas patologias, incluindo diabetes. Algumas espécies têm sido alvo de estudos científicos visando o isolamento e a avaliação do potencial terapêutico. No entanto, sobre as espécies adaptadas no Bra
Publicado em: 2006
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19. Separação e purificação do ácido clavulânico através de extração líquido-líquido seguida de adsorção em coluna de leito fixo.
A study was made of the extraction of clavulanic acid (CA) from a fermented medium and its concentration and purification, based on a comparison of two liquid-liquid extraction methods, followed by adsorption in a fixed bed column containing resins (hydrophobic polymeric resin and ion exchange resin). The extraction and adsorption steps proposed here were ev
Publicado em: 2005
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20. Important volateis composites for the aroma of jenipapo (American Genipa L.) e murici (crassifolia Byrsonima L. RICH). / Compostos volateis importantes para o aroma de jenipapo (Genipa americana L.) e murici (Byrsonima crassifolia L. RICH).
The volatile compounds are responsible for the characteristic flavor of food. They are present in a wide interval of concentration, possessing varied chemical structure, beyond of being, generally heating labil. Usually the flavour of a product is constituted by hundreds of volatile compounds. However, only some compounds efftectivelly contribute to the over
Publicado em: 2004
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21. Chiral liquid-crystalline polyacrylates from (S)-(-)-2-methyl-1-butanol. Synthesis, mesomorphic properties and light scattering
A síntese e o comportamento mesomórfico de dois poliacrilatos quirais líquido cristalinos com cadeia lateral derivados do (S)-(-)-2-metil-1-butanol são descritos. Estes novos poliacrilatos quirais mostram dependência das temperaturas de transição de fase com a massa molar e o comprimento do espaçador. O poliacrilato contendo quatro unidades metilêni
Journal of the Brazilian Chemical Society. Publicado em: 2001-04
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22. Exogenous Valine Reduces Conversion of Leucine to 3-Methyl-1-Butanol in Saccharomyces cerevisiae
Mutant strains of the yeast Saccharomyces cerevisiae that require branched-chain amino acids must be supplemented with large concentrations (up to 10 mM) of these amino acids to satisfy their nutritional requirement. The utilization of one branched-chain amino acid, leucine, was examined in several leul strains of yeast grown aerobically in a glucose-ammoniu
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23. Production of Methyl Ketones from Secondary Alcohols by Cell Suspensions of C2 to C4n-Alkane-Grown Bacteria
Nineteen new C2 to C4n-alkane-grown cultures were isolated from lake water from Warinanco Park, Linden, N.J., and from lake and soil samples from Bayway Refinery, Linden, N.J. Fifteen known liquid alkane-utilizing cultures were also found to be able to grow on C2 to C4n-alkanes. Cell suspensions of these C2 to C4n-alkane-grown bacteria oxidized 2-alcohols (2
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24. Volatile Compounds Produced in Sterile Fish Muscle (Sebastes melanops) by Pseudomonas perolens1
Volatile compounds produced by Pseudomonas perolens ATCC 10757 in sterile fish muscle (Sebastes melanops) were identified by combined gas-liquid chromatography and mass spectrometry. Compounds positively identified included methyl mercaptan, dimethyl disulfide, dimethyl trisulfide, 3-methyl-1-butanol, butanone, and 2-methoxy-3-isopropylpyrazine. Compounds te