Axial mixing in rotating drums using magnetic resonance imaging using bran as a model for solid state fermentations

Magnetic resonance imaging (MRI) is an easily automated, reliable technique to investigate axial mixing within rotating drums. Moist bran can be clearly differentiated from dry bran using MRI allowing a non-segregating tracer for axial mixing. For a 20-cm diameter drum, the axial dispersion coeffici...

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Bibliographic Details
Published in:Biotechnology letters 2002-04, Vol.24 (7), p.521-525
Main Authors: HARDIN, Matthew T, HOWES, Tony, MITCHELL, David A, WHITTAKER, Andrew K
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biotechnology
Fermentation
Fundamental and applied biological sciences. Psychology
NMR
Nuclear magnetic resonance
Solid state physics
Wheat
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Summary:Magnetic resonance imaging (MRI) is an easily automated, reliable technique to investigate axial mixing within rotating drums. Moist bran can be clearly differentiated from dry bran using MRI allowing a non-segregating tracer for axial mixing. For a 20-cm diameter drum, the axial dispersion coefficient in the particle bed was 0.51 cm s^sup -2^. Axial dispersion is scale-dependent.[PUBLICATION ABSTRACT]
ISSN:0141-5492
1573-6776
DOI:10.1023/A:1014843515303