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Industrially Useful Microbial Processes

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
Na2SO4
MgSO4

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Industrially Useful Microbial Processes
Fungal amylases using stationary culture with wheat bran utilizes

A. niger
A. oryzae
S. cerevisiae
A. flavus

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

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Industrially Useful Microbial Processes
The organism used to produce L-glutamic acid is

Brevibacterium aminogenes
Micrococcus glutamicus
all of these
Arthrobacter globiformis

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Industrially Useful Microbial Processes
Which of the following is not an industrial product made by the fungus Aspergillus niger?

Gluconic acid
Lysine
Galactosidase
Citric acid

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Industrially Useful Microbial Processes
The 95% ethanol is equivalent to

170 proof
190 proof
110 proof
120 proof

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