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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 11, No. 1, 2008
Bioline Code: ej08008
Full paper language: English
Document type: Research Article
Document available free of charge

Electronic Journal of Biotechnology, Vol. 11, No. 1, 2008

 en Oxygen mass transfer studies on batch cultivation of P. aeruginosa check for this species in other resources in a biocalorimeter
Sivaprakasam, Senthilkumar; Mahadevan, Surianarayanan & Gopalaraman, Swaminathan


In the present work volumetric mass transfer coefficient (kLa) was investigated during batch cultivations of Pseudomonas aeruginosa check for this species in other resources on a nutrient media. The effects of process variables (viz. impeller speed, oxygen flow and geometry of impeller) on the volumetric mass transfer coefficient of oxygen, kLa, in a biocalorimeter (Bio-RC1) was investigated and reported in this research work. The experimental data have been analyzed employing MATLAB to obtain the influences of the process parameters on kLa. An attempt was made to correlate volumetric mass transfer coefficient with metabolic heat production rate at optimized process conditions. The correlation reported in this work would be useful to control and scale up of bioprocesses.

biocalorimeter, metabolic heat, P. aeruginosa, scale-up, volumetric mass transfer coefficient.

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