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Industrially Useful Microbial Processes

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

citric acid
acetone butanol
streptomycin
ethanol

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Industrially Useful Microbial Processes
The rapid process of microbial oxidation developed to produce acetic acid from ethanol at Schutzenbach, Germany is also known as

trickle method
packed generator
both (a) and (b)
Orleans process

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Industrially Useful Microbial Processes
Protease, which is used for flavouring of sake and haze removal in sake is produced by

A. niger
A. oryzae
A. flavus
B. cereus

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Industrially Useful Microbial Processes
A major organic acid produced by a microbial process used in foods is

citric acid
sulfuric acid
uric acid
oxalic acid

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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

99%
95%
60%
70%

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Industrially Useful Microbial Processes
The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

traces of iron
traces of cobalt
none of these
traces of nickel

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