Isooctane
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Sintese enzimatica dos esteres de aroma butirato e valerato de citronelila por lipase de Rhizopus sp. / Enzymatic synthesis of the butyric flavor esters and valeric citronellyl by lipase of Rhizopus sp.
The enzymatic synthesis of citronellyl flavor esters with a non commercial lipase from Rhizopus sp was investigated. The results were compared with other lipases from Fusarium 152 B, Fusarium 160 A1, Tricoderma sp, and Alcaligenes sp. The lipase from Rhizopus sp was selected as better biocatalyst for the citronelyl ester synthesis. It was verified the effect
Publicado em: 2004
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14. Screening of Genes Involved in Isooctane Tolerance in Saccharomyces cerevisiae by Using mRNA Differential Display
A Saccharomyces cerevisiae strain, KK-211, isolated by the long-term bioprocess of stereoselective reduction in isooctane, showed extremely high tolerance to the solvent, which is toxic to yeast cells, but, in comparison with its wild-type parent, DY-1, showed low tolerance to hydrophilic organic solvents, such as dimethyl sulfoxide and ethanol. In order to
American Society for Microbiology.
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15. Mediation of retinal photoisomerization by adduct formation with tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)-europium(II).
Several retinal isomers are shown to form adducts in isooctane solution with a lanthanide beta-diketonate complex, tris(6,6,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)europium(III) [Eu(fod)3]. The adducts are characterized by an absorption band whose lambda max at approximately 420 nm is red-shifted by approximately 60 nm from the lowest-energy absor
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16. An Alpha-Helical Peptide in AOT Micelles Prefers to be Localized at the Water/Headgroup Interface
A model alpha-helical peptide encapsulated in a reverse micelle is used to study the structure and dynamics of proteins under constrained environments that mimic the membrane-water environment in cells. Molecular dynamics simulations of the self assembly of systems composed of a peptide, sodium bis(2-ethylhexyl) sulfosuccinate (AOT), water, and isooctane sho
The Biophysical Society.
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17. A Mycobacterium Strain with Extended Capacities for Degradation of Gasoline Hydrocarbons
A bacterial strain (strain IFP 2173) was selected from a gasoline-polluted aquifer on the basis of its capacity to use 2,2,4-trimethylpentane (isooctane) as a sole carbon and energy source. This isolate, the first isolate with this capacity to be characterized, was identified by 16S ribosomal DNA analysis, and 100% sequence identity with a reference strain o
American Society for Microbiology.
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18. Isolation and Characterization of Methanophenazine and Function of Phenazines in Membrane-Bound Electron Transport of Methanosarcina mazei Gö1
A hydrophobic, redox-active component with a molecular mass of 538 Da was isolated from lyophilized membranes of Methanosarcina mazei Gö1 by extraction with isooctane. After purification on a high-performance liquid chromatography column, the chemical structure was analyzed by mass spectroscopy and nuclear magnetic resonance studies. The component was calle
American Society for Microbiology.
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19. Preparation of gelatin microbeads with a narrow size distribution using microchannel emulsification
The purpose of this study was to prepare monodisperse gelatin microcapsules containing an active agent using microchannel (MC) emulsification, a novel technique for preparing water-in-oil (W/O) and oil-in-water (O/W) emulsions. As the first step in applying MC emulsification to the preparation of monodisperse gelatin microcapsules, simple gelatin microbeads
Springer-Verlag.