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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B12 and can be used to counteract toxicity of iron in Candida species?

Ca
Ni
Zn
Co

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Industrially Useful Microbial Processes
The sugar concentration of molasses used in fermentation should be

30-38%
20-30%
4-5%
10-18%

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

Ashbya gossypii
Eremothecium ashbyii
Candida flareri
None of these

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

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

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Industrially Useful Microbial Processes
The organism B. brevis can be used commercially for the production of

tyrothricin(bacitracin tyrocidin complex)
gramicidin A
tyrocidin
All of these

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Industrially Useful Microbial Processes
Bacitracin, an antibiotic similar to penicillin, is produced by

Bacillus polymyxa
Bacillus licheniformis
Streptomyces erythreus
Aspergillus fumigatus

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