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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Naringinase, an enzyme commonly used for removal of bitter taste from citrus juice is obtained from

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

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

ethanol
acetone butanol
streptomycin
citric 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

human pathogens
none of these
plant pathogens
plant mutants

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Industrially Useful Microbial Processes
Which species from the followings is resistant to methyl tryptophan?

B. subtilis
Candida utilis
E. coli
Hansenula anomala

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

Lysine
Galactosidase
Citric acid
Gluconic acid

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

Desulfovibrio desulfuricans
Pseudomonas aeruginosa
Thiobacillus ferrooxidans
Aspergillus niger

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