Bioreductions
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Improving the Toolbox of Bioreductions by the Use of Continuous Flow Systems
Packed bed reactors can be used as an interesting alternative on the bioreduction of β-ketoesteres mediated by immobilized microorganisms. Here in, we report our results on the bioreduction of ethyl 3-oxohexanoate by immobilized Kluyveromyces marxianus cells and tert-butyl 3-oxobutanoate by immobilized Rhodotorula rubra cells under continuous flow condition
J. Braz. Chem. Soc.. Publicado em: 2015-03
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2. Chemical Study of the antagonistic fungus Trichoderma harzianum / Estudo Químico do Fungo Antagonista Trichoderma harzianum
The chemical potential of Trichoderma harzianum, an antagonist fungus, was investigated. The fatty acid composition of this fungus grown in Czapeck, peptone and potato, with different carbon source (glycose and manitol) in the later medium, was determined after GC/MS analysis. The following fatty acids, as their methyl esters, were identified: hexadecanoic (
Publicado em: 2009
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3. Estudo da redução de iminas / Stydy of imine reduction
This project studies the behavior of a series of imines structurally analogues in bioreductions with baker yeast and carrots, and also with NaBH4 using alternative chiral reagents like 1-amine-2-propanol, prolinol and 2-a- hidroxybenzyl-benzimidazole or tartaric acid. For biocatalysis we investigated different temperatures, solvents and proportions of reagen
Publicado em: 2008
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4. Estudo da biorredução de compostos carbonílicos por linhagens de Saccharomyces cerevisiae sp
A Biocatálise atualmente é de grande relevância na produção de substâncias opticamente puras, sendo amplamente utilizada para sínteses assimétricas. As bioconversões ocorrem com alta especificidade e eficiência por serem catalisadas com enzimas, formando assim somente um dos isômeros a partir de um substrato pró-quiral. A utilização dos microrg
Publicado em: 2006
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5. Sintese biocatalitica de beta -amino- alfa -hidroxiacidos : aplicações na sintese de heterociclos quirais / Sintese biocatalitica de B-amino-a-hidroxiacidos : aplicações na sintese de heterociclos quirais
Homochiral b-amino-a-hydroxy acids are key components of many compounds with important pharmacological activities. In this work, we have performed a synthetic study in order to develop a general methodology to synthesize these compounds. We have specially investigated the bioreductions of a-ketoesters (with an a-carbonyl R group that could lead to nitrogened
Publicado em: 2005