The focus of this report is directed towards the
influence of transport properties of fermentation broth in
degradation and decolorization of distillery spent wash
using
Cladosporium cladosporioides
. Batch experiment
was conducted in a bioreactor for 7 days with 250 rpm at
35 °C under optimum bioprocess conditions maintained
using control system. Results of the morphological analysis
revealed that
C. cladosporioides has been observed to form
mainly pellets during fermentation under mild agitation.
The organism changed from filamentous form to pellet and
then breaks, ending with filamentous form. All the models
Power law, Bingham plastic, and Herschel–Bulkley fitted
the general trend well with high
R2 values ranging from 0.9
to 0.98, indicating shear rate thinning nature of the broth. A
maximum decolorization of 72.3 % was achieved with
chemical oxygen demand reduction of 74.8 % due to the
low viscous and pellet nature of the organism, leading to
the transport properties of the fluid. Hence, transport phenomena
channalyze the metabolic path way easily and
leads to a novel approach for the industries to utilize the
spent wash with minimum cost.
