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Industrially Useful Microbial Processes

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

Citric acid
Galactosidase
Lysine
Gluconic acid

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Industrially Useful Microbial Processes
The recovery of vitamin from fermentation broth is carried out prior to

autolysis
none of these
acidification
alcohol treatment

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

Candida utilis
Hansenula anomala
B. subtilis
E. coli

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Industrially Useful Microbial Processes
Which of the following was the first amino acid to be produced commercially?

L-glutamic acid
L-lysine
L-cystine
L-methionine

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

Thiobacillus ferrooxidans
Desulfovibrio desulfuricans
Aspergillus niger
Pseudomonas aeruginosa

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Industrially Useful Microbial Processes
During fermentation, pyruvic acid is converted into organic products such as

ethyl alcohol and lactic acid
citric acid and isocitric acid
starch and cellulose
glucose and fructose

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