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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following substance is employed to neutralize the lactic acid as it is produced (because lactic acid bacteria do not tolerate high concentrations of acid?

Na2SO4
CaCO3
MgSO4
(NH4)2 HPO4

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Industrially Useful Microbial Processes
Alcohol production from starch and raw sugar utilizes selected strains of

none of these
Candida utilis
Candida pseudotropicalis
Saccharomyces cerevisiae

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

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

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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 pathogens
none of these
human pathogens
plant mutants

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Industrially Useful Microbial Processes
Cycloserine may be isolated from the cultures of

All of these
S. lavendulae
S. garyphalus
S. orchidaceus

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Industrially Useful Microbial Processes
The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of

Propionibacterium
both (a) and (b)
Acetobacter
Pseudomonas

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