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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is

isomerase
dehydrogenase
invertase
racemase

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

streptomycin
citric acid
ethanol
acetone butanol

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Industrially Useful Microbial Processes
Vinegar is a fermentation derived food product containing not less than

4% acetic acid
25% acetic acid
15% acetic acid
6% acetic acid

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Industrially Useful Microbial Processes
The major organism used in the microbial production of citric acid is

Lactobacillis delbrueckii
Penicillin notatum
Rhizopus nigrificins
Aspergillus niger

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Industrially Useful Microbial Processes
Which of the following organism is utilized for the production of D-L-alanine?

Arthrobacter paraffineus
C. glutamicum
Microbacterium ammoniaphilum
Brevibacterium flavum

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Industrially Useful Microbial Processes
The submerged fermentation of vinegar utilizes special fermentor designs known as

packed vinegar generator
cavitator
acetator
both (a) and (b)

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