Steady-state shear characteristics of Aspergillus niger broths
Conference
·
OSTI ID:150423
- Univ. of Louisville, KY (United States)
It can be difficult to obtain reliable rheological data for filamentous fermentation broths using conventional instruments. One common approach is to measure the torque drawn by an impeller rotating in the suspension. Many previous workers have assumed that the applicable shear rate in such a device is related to the impeller speed by a fluid-independent constant determined by calibration with Newtonian and non-Newtonian fluids. The rheology of Aspergillus niger broths have been characterized using the impeller viscometer approach. The changes in the broth rheology were measured, and used to interpret the growth of biomass and the evolution of the microorganism morphology.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 150423
- Report Number(s):
- CONF-940526--; CNN: Grant BCS-9011099
- Country of Publication:
- United States
- Language:
- English
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