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

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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
(NH4)2 HPO4
MgSO4
CaCO3

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Industrially Useful Microbial Processes
Which of the following is known for greater stability of the riboflavin producing capacity?

None of these
Ashbya gossypii
Candida flareri
Eremothecium ashbyii

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Industrially Useful Microbial Processes
Which of the following Ascomycetes are used for riboflavin production?

Eremnothecium ashbyii
Both (a) and (b)
Candida guilliermondia
Ashbya gossypii

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Industrially Useful Microbial Processes
Protease, which is used for flavouring of sake and haze removal in sake is produced by

B. cereus
A. oryzae
A. niger
A. flavus

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

ethanol
citric acid
streptomycin
acetone butanol

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