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Estimation of KLa in Solid-State Fermentation Using a Packed-Bed Bioreactor

Gowthaman, M. K. and Raghavarao, K. S. M. S. and Ghildyal, N. P. and Karanth, N. G. (1995) Estimation of KLa in Solid-State Fermentation Using a Packed-Bed Bioreactor. Process Biochemistry , 30 (1). pp. 9-15.

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Abstract

The direct method based on inlet- and outlet-gas concentrations in submerged fermentation (SmF) was adopted for estimating overall oxygen-transfer coefficients (KLa) in a packed-bed solid-state fermenter. The variation in KLaduring fermentation at different air-flow rates was studied. The values of KLawere higher than those found in SmF. The moisture content was found to affect oxygen-transfer rates and coefficients. The value of KLa increased with an increase in air-flow rate in the range 0-15 litre/min but decreased at higher air-flow rates (15-25 litre/min). This could be attributed to the decrease in the moisture content of the substrate at high flow rates.

Item Type: Article
Uncontrolled Keywords: solid state fermentation packed-bed bioreactor
Subjects: 600 Technology > 05 Chemical engineering > 04 Fermentation Technology
500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology
Divisions: Food Engineering
Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 27 Sep 2007 10:09
Last Modified: 30 Jun 2015 06:32
URI: http://ir.cftri.com/id/eprint/1443

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