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Industrially Useful Microbial Processes

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

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

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

autolysis
alcohol treatment
none of these
acidification

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Industrially Useful Microbial Processes
Most productive species among the different vitamin B12 producing Pseudomonads is

P. aureofaciens
P. denitrificans
P. ovalis
none of these

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

E. coli
Candida utilis
Hansenula anomala
B. subtilis

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

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

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

Lysine
Gluconic acid
Citric acid
Galactosidase

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