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Industrially Useful Microbial Processes

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

Acetobacter
both (a) and (b)
Propionibacterium
Pseudomonas

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Industrially Useful Microbial Processes
Pectinase, an enzyme used for increasing yield and for clarifying juice is obtained by

A. oryzae
A. niger
A.flavus
all of these

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Industrially Useful Microbial Processes
Naringinase, an enzyme commonly used for removal of bitter taste from citrus juice is obtained from

A.flavus
S. cerevisiae
A. niger
A. oryzae

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Industrially Useful Microbial Processes
The first penicillin isolated by Alexander Fleming, penicillin F is also called

benzyl penicillin
n-heptyl penicillin
2-Pentenyl Penicillin
phenoxymethyl penicillin

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

Eremothecium ashbyii
Ashbya gossypii
None of these
Candida flareri

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

invertase
dehydrogenase
isomerase
racemase

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