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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Most productive species among the different vitamin B12 producing Pseudomonads is

P. denitrificans
P. ovalis
none of these
P. aureofaciens

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Industrially Useful Microbial Processes
The species of Acetobacter which produces cellulosic strands to hold the cells in lime layer is

Acetobacter xylinum
Acetobacter curvum
Accetobacter orleanense
Acetobacter schuetzenbachii

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Industrially Useful Microbial Processes
The biotin level in obtaining L-gluatmic acid by fermentation using Micrococcus glutamicus is critical because

both (a) and (b)
None of these
too low level prevents growths, hence L-glutamic acid production
too high level prevents L-glutamic acid production

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Industrially Useful Microbial Processes
The sugar concentration of molasses used in fermentation should be

30-38%
10-18%
4-5%
20-30%

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Industrially Useful Microbial Processes
The maximum concentration of ethanol that is achieved by successive distillation of fermentation broth in continuous stills is

60%
70%
99%
95%

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Industrially Useful Microbial Processes
Which of the following substance is employed to neutralize the lactic acid as it is produced (because lactic acid bacteria do not tolerate high concentrations of acid?

Na2SO4
CaCO3
(NH4)2 HPO4
MgSO4

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