Buscar
Itens para a visualização no momento 41-50 of 676
Validação da simulação dinâmica das etapas de evaporação e cristalização da produção de açúcar com dados obtidos em plantas industriais.
(Universidade Federal de São Carlos, 2004-06-23)
The central area of the State of São Paulo, Brazil, where the city of São Carlos is located, is one of the largest world producers of alcohol and granulated sugar from sugar cane. As the market become more competitive, the ...
Purificação do ácido clavulânico por processo de filtração tangencial, extração por sistema de duas fases aquosas e re-extração com resina de troca iônica
(Universidade Federal de São Carlos, 2010-06-09)
Clavulanic acid is a β-lactam substance with low antibiotic activity. Nonetheless, it is an important medicine which acts as a potent β-lactamase inhibitor. These enzymes catalyze the hydrolysis of β-lactam ...
Produção de cefamicina C por Streptomyces clavuligerus em batelada e batelada alimentada
(Universidade Federal de São Carlos, 2010-03-31)
Cephamycin C (CephC) is a natural antibiotic produced by Streptomyces clavuligerus that presents β-lactamases resistance, enzymes that clives β-lactam of antibiotics. The aim of present work was study cephamycin ...
Isomerização do N-hexano sobre catalisadores Pt-Ni suportados na zeólita H-BEA nanocristalina
(Universidade Federal de São Carlos, 2008-11-11)
This work had as a goal to investigate the main factors that explain the highest activity of zeolite Beta in relation to the other zeolitic structures, using the n-hexane isomerization as a criterion. With this goal, in ...
Estudo do efeito da adição de Au, Pd e Pt em catalisadores Cu/CeO2 aplicados à reação de deslocamento gás-água a baixa temperatura
(Universidade Federal de São Carlos, 2008-07-02)
Cu/CeO2 catalysts doped with Au, Pd or Pt (WGSR) were prepared and applied in water gas shift reaction. The CeO2 support was prepared by four different way: urea co-precipitation-gelation (CeO2-UGC), hydrothermal method ...
Abordagem estatística e computacional na otimização de meios de cultura para produção de antibióticos: o caso da cefalosporina C.
(Universidade Federal de São Carlos, 2003-10-10)
The scope of the current work was to investigate the effect of glucose, amonium acetate, DL-methionine, phosphorus, oleic acid and salt solution on the maximum specific growth rate (µmax), as well as the effect of sucrose ...
Estudo de catalisadores de cobre suportados para a reação de oxidação preferencial do CO
(Universidade Federal de São Carlos, 2010-06-30)
The CO preferential oxidation reaction (PROX-CO) has been widely studied in last few years. Aiming H2 purification for proton-exchange membrane cells (PEMFC) use, the main role of the PROX-CO reaction should be reduce the ...
Avaliação do híbrido CTA-MCM-41, modificado por poliestireno, na transesterificação catalítica de monoéster
(Universidade Federal de São Carlos, 2013-09-29)
The present work shows a new technique applied to the synthesis of heterogeneous catalysts MCM-41 containing basic alkylammonium cations and the study of stability in the transesterification reactions of monoesters. MCM-41 ...
Produção e purificação de penicilina G acilase.
(Universidade Federal de São Carlos, 2003-06-26)
The main objective of the present work was the study of PGA of B. megaterium production process and purification. The following production aspects were investigated in flasks and/or fermenter: the study of the purity of ...
Investigação da influência do tamanho das partículas de materiais pulverulentos sobre a força de adesão em diferentes substratos aplicando a técnica centrífuga
(Universidade Federal de São Carlos, 2008-03-25)
It was investigated in this work the influence of the size of the particles of the organic
and inorganic powdery material on the force of adhesion of those particles and a built
substratum of different materials: stainless ...