Estimation of the rheology of glucoamylase fermentation broth from the biomass concentration and shear conditions

Fermentation broths from nine Aspergillus awamori cultivations, carried out under different agitation and aeration conditions and distinct initial substrate concentrations, were characterized using a continuous on-line rheometer. A single correlation between the consistency index (K) and the biomass...

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Bibliographic Details
Published in:Biotechnology techniques 1999, Vol.13 (10), p.723-726
Main Authors: Badino, A.C. Jr, Facciotti, M.C.R, Schmidell, W
Format: Article
Language:English
Subjects:
Aspergillus awamori
Biological and medical sciences
Biotechnology
Enzyme engineering
Fermentation
Fundamental and applied biological sciences. Psychology
glucan 1,4-alpha-glucosidase
Methods. Procedures. Technologies
Production of selected enzymes
shear stress
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Summary:Fermentation broths from nine Aspergillus awamori cultivations, carried out under different agitation and aeration conditions and distinct initial substrate concentrations, were characterized using a continuous on-line rheometer. A single correlation between the consistency index (K) and the biomass concentration (X), including the agitation (N) and aeration (Q) conditions fitted the experimental data reasonably well, showing that the shear conditions imposed on the broth influence in a significant way the mycelial morphology and, therefore, the broth rheology.
ISSN:0951-208X
1573-6784