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Industrially Useful Microbial Processes

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

sulfuric acid
citric acid
oxalic acid
uric acid

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Industrially Useful Microbial Processes
It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are

plant mutants
human pathogens
plant pathogens
none of these

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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. flavus
A. niger
B. cereus
A. oryzae

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Industrially Useful Microbial Processes
The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is

dehydrogenase
invertase
racemase
isomerase

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Industrially Useful Microbial Processes
The production of acetic acid from ethanol is an

None of these
anaerobic process
aerobic process
a combination of both

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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%
95%
70%
99%

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