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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.

acetone butanol
citric acid
streptomycin
ethanol

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

Arthrobacter globiformis
Micrococcus glutamicus
all of these
Brevibacterium aminogenes

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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

70%
60%
99%
95%

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

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

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

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

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Industrially Useful Microbial Processes
The 95% ethanol is equivalent to

190 proof
170 proof
110 proof
120 proof

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