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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
A major organism used in commercial bioleaching for copper recovery is

Thiobacillus ferrooxidans
Aspergillus niger
Pseudomonas aeruginosa
Desulfovibrio desulfuricans

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Industrially Useful Microbial Processes
The organism B. brevis can be used commercially for the production of

tyrothricin(bacitracin tyrocidin complex)
tyrocidin
gramicidin A
All of these

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Industrially Useful Microbial Processes
The commonly used media for submerged bacterial fermentation at commercial scale is

germinated seed
beet molasses
liver extract
none of these

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

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

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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?

CaCO3
(NH4)2 HPO4
MgSO4
Na2SO4

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Industrially Useful Microbial Processes
Which of the following agents involve biosensors linking with electronic circuit?

Microbially derived enzymes
Neither microorganisms nor microbially derived enzymes
Microorganisms
Either microorganisms or microbially derived enzymes

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