Cells may affect oxygen transfer rates by three mechanisms: respiration of cells accumulated at the gas/liquid interface, physical presence of cells as solid particles, and modification of the medium by cells. These effects were studied experimentally in bubble-aerated bioreactors using baker\u27s yeast at different cell concentrations, agitation speeds, aeration rates, and specific oxygen uptake rates. The overall effect of cells was to enhance oxygen transfer rates. The physical presence of cells as solid particles was found to retard oxygen transfer, presumably due to the lower oxygen permeability in the cell layer accumulated near the bubble surfaces. Cell respiration and medium modification, on the other hand, enhanced oxygen transfer ...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floe LT2...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floc LT2...
Product yields of biologicals such as monoclonal antibodies, recombinant proteins and vaccines produ...
Experiments were conducted in a 0.25m diameter bubble column to investigate the effect of medium com...
Abstract: Experiments were conducted in a 0.25 m diameter bubble column to investigate the effect of...
To enhance oxygen transfer in surface-aeration bioreactors, stabilized foams were generated to incre...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
The oxygen uptake rate to suspended cells of Pseudomonas ovalis was measured in two ways using the...
A model was developed to evaluate the effects of cells and surfactants on oxygen transfer in surface...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
In an aerobic process, such as enzymes production by fungi, the oxygen supply into fermentation medi...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
Micro-bubble aeration in stirred bioreactors represents a suitable method that allows sufficient oxy...
Batch cultures of E. coli TB1/pUC13 were carried out at different oxygen transfer rates (OTR) enhan...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floe LT2...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floc LT2...
Product yields of biologicals such as monoclonal antibodies, recombinant proteins and vaccines produ...
Experiments were conducted in a 0.25m diameter bubble column to investigate the effect of medium com...
Abstract: Experiments were conducted in a 0.25 m diameter bubble column to investigate the effect of...
To enhance oxygen transfer in surface-aeration bioreactors, stabilized foams were generated to incre...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
The oxygen uptake rate to suspended cells of Pseudomonas ovalis was measured in two ways using the...
A model was developed to evaluate the effects of cells and surfactants on oxygen transfer in surface...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
In an aerobic process, such as enzymes production by fungi, the oxygen supply into fermentation medi...
Cultivation of microorganisms, plants or animal cells requires liquid agitation in order to ensure o...
Micro-bubble aeration in stirred bioreactors represents a suitable method that allows sufficient oxy...
Batch cultures of E. coli TB1/pUC13 were carried out at different oxygen transfer rates (OTR) enhan...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floe LT2...
The effect of solids concentration and the presence of the charged polymeric additive Magna Floc LT2...
Product yields of biologicals such as monoclonal antibodies, recombinant proteins and vaccines produ...