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The transport of insoluble substrates such as hydrocarbons to microorganisms is often postulated to be dictated by the availability of the hydrocarbon surface area. Many publications, qualitative and quantitative, have appeared to substantiate this hypothesis. Experiments have been performed in...
Presently empirical expressions, especially the Monod equation, are used to quantitatively relate microbial growth rate to limiting substrate concentration in the solution. In this paper microbial growth is postulated to occur by a mechanism involving a mass transfer or assimilation process. The...
The limitation of thermal inactivation on catalytic activity in continuous enzymatic reactions is considered. Where an enzyme is retained in a reaction environment which is open to mass transfer of reaction components, the effect of enzyme inactivation on reactant conversion depends on the order...
Oxygen solution rates were measured in 4, 30, and 100 liter culture vessels, and the oxygen demand of growing BHK 21 cells estimated. This data was used to calculate the minimal sparged air rates necessary to satisfy oxygen demand throughout the cell growth cycle, and in this way adequate oxygen...
Cultivation of Corynebacterium hydrocarboclastus, which is capable of synthesizing an extracellular polymer and utilized hydrocarbons, has been reported. Growth studies in shake flasks and fermenters were made to obtain maximum polymer production. Polymer formation was found to be growth...
Six soil isolates were grown on a petroleum sulfonate medium and analyzed chromatographically to determine their amino acid composition. The organisms were also examined to determine their growth rate in the petroleum medium, their per cent conversion of hydrocarbon to dry cell mass, their...
High voltage electric discharges between two electrodes immersed in a liquid (“electrohydraulic discharges”) inactivate microorganisms suspended in the liquid. The intense pulse of UV radiation emitted from the plasma formed between the electrodes causes most of the bactericidal effects,...
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