Stirred Flask
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Comparison between continuous and batch processing to produce xylanase by penicillium canescens 10-10c
Penicillium canescens 10-10c strain was cultivated on barley straw hydrolysate as a soluble nutrient source and as inducer for xylanase production. Barley straw hydrolysate was obtained by treatment of barley straw with NaOH or hot water. In shake flask cultures, NaOH treatment was found to increase the biomass production, but was not accompanied by an incre
Braz. J. Chem. Eng.. Publicado em: 2012-09
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2. Production of extracellular lipases by Rhizopus oligosporus in a stirred fermentor
The present investigation deals with the kinetics of submerged extracellular lipases fermentation by both wild and mutant strains of Rhizopus oligosporus var. microsporus in a laboratory scale stirred fermentor. Other parameters studied were inoculum size, pH, agitation and rate of aeration. It was found that the growth and lipases production was increased g
Brazilian Journal of Microbiology. Publicado em: 2010-12
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3. Estudo do crescimento de Ceriporiopsis subvermispora em culturas submersas para a produção de inóculos destinados ao processo de biopolpação / Studies on the submerged culturing of Ceriporiopsis subvermispora for inocolum production used in biopulping processes
The present work evaluated suitable systems for producing Ceriporiopsis subvermispora mycelium in submerged cultures. Mycellium produced was used in subsequent inoculation of wood chips in biopulping processes. The development of appropriated technologies for producing large amounts of inoculum may be a key step in biopulping, since currently there are no es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2009
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4. Efeito da temperatura na otimização da produção de glicoproteína do vírus da raiva em cultivos em suspensão de células recombinantes de Drosophila melanogaster S2
The increment of the expression of complex correctly processed recombinant proteins, like the ones produced by animal cells, is essential for the development of an efficient large scale bioprocess. The manipulation of culture conditions plays a very important role in the controlled and optimized expression of these proteins in bioreactors. The response of ma
Publicado em: 2008
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5. CULTIVO DE Saccharomyces boulardii EM BIORREATOR AIR-LIFT E EM FRASCOS AGITADOS MECANICAMENTE / Saccharomyces boulardii GROWTH IN AN AIR-LIFT FERMENTER AND MECHANICALLY STIRRED FLASK
Os biorreatores tipo Air Lift oferecem vantagens tais como eficiente homogeneização dos componentes, baixo cisalhamento e economia de energia, pois o meio é agitado pelo processo de aeração, sem necessidade de agitação mecânica. O objetivo deste trabalho foi analisar a cinética de crescimento da levedura Saccharomyces boulardii neste biorreator, com
Publicado em: 2006
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6. Estudo da produção de cefalosporina C : composição do meio, produtividades especificas e caracterização reologica em processos conduzidos em batelada e batelada alimentada
Bioprocess for cephalosporin C production in fed-batch fermentor was studied concermng medium composition, specific productivity and rheological characterization. The batch process was performed in shake flasks and in 5 liters stirred tank reactor provided with pH, temperature, aeration and agitation control. In the shake flask experiments the performance of
Publicado em: 1998
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7. Desenvolvimento de um procedimento para a separação de 57Co e 58Co, na forma livre de carregador, a partir de alvos de niquel irradiados
The present work describes the development of a procedure for obtaining Co and Co - "carrier-free" - from nickel targets irradiated in a cyclotron and in a nuclear reactor, respectively. The irradiated nickel target is stirred in a flask containing concentrated HCl at reflux until complete dissolution of the target. After complete elimination of the solvent
Publicado em: 1979
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8. A9145, a New Adenine-Containing Antifungal Antibiotic: Fermentation
A9145 is a basic, water-soluble, antifungal antibiotic which is produced in a complex organic medium by Streptomyces griseolus. The metabolite has a molecular weight of 510, and contains adenine as well as sugar hydroxyl and amino groups. Although glucose, fructose, glucose polymers, and some long-chain fatty acid methyl esters supported biosynthesis, oils w
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9. Butirosin, a New Aminoglycosidic Antibiotic Complex: Bacterial Origin and Some Microbiological Studies
Butirosin, a new aminoglycosidic antibiotic complex, was produced by submerged fermentation with each of two strains of Bacillus circulans. A paper-disc, agar-diffusion assay which employs Escherichia coli (P-D 04863) as the test organism has been developed. Shaken-flask and stirred-jar fermentations in a medium containing glycerol, soybean meal, meat pepton