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Measurement ofKLa by a gassing-in method with oxygen-enriched air by Ho Nam Chang; Benoit Halard; Murray Moo-Young is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Measurement ofKLa by a gassing-in method with oxygen-enriched air about?

The dynamic gassing-out method using nitrogen for gas-liquid K,a measurements has been modified so that gassing-out is performed with air and gassing-in with oxygen-enriched air. This new method was proven theoretically valid for use in inert model systems and in actual fermentation systems. The K,a values were measured in a I-m-high bubble column and compared with those obtained from the traditional gassing-in method for three different mixing models in batchwise contacting: mixed gas and liquid (MMB); plug-flow gas and mixed liquid (PMB); and plug-flow gas and plug-flow liquid (PPB). The K,a values obtained f r o m the new method were consistent with those of the method of Bartholomew et al. Discrimination between the models appeared to be not important for the I-m-high column, but the theoretical analysis revealed that it would become necessary for columns about 10 m and higher.

Who reads Measurement ofKLa by a gassing-in method with oxygen-enriched air?

Author

Ho Nam Chang; Benoit Halard; Murray Moo-Young

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0006-3592)

Published

1989

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)