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Industrially Useful Microbial Processes

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

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

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Industrially Useful Microbial Processes
Penicillin G is also known as

benzyl penicillin
2-pentenyl penicillin
hydroxy benzyl penicillin
phenoxy methyl penicillin

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Industrially Useful Microbial Processes
Rickes et al. recovered active crystalline vitamin B12 from the culture of

Bacillus megaterium
Streptomyces lactis
Streptomyces olivaceus
Streptomyces griseus

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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?

Zn
Co
Ca
Ni

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Industrially Useful Microbial Processes
Chlorotetracycline a broad spectrum antibiotic is produced by

Streptomyces aureofaciens
Streptomyces rimosus
Streptomyces venezuelae
Streptomyces erythreus

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Industrially Useful Microbial Processes
The maximum concentration of ethanol that is achieved by successive distillation of fermentation broth in continuous stills is

99%
95%
60%
70%

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