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Industrially Useful Microbial Processes

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

Pseudomonas
Acetobacter
Propionibacterium
both (a) and (b)

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Industrially Useful Microbial Processes
It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are

plant pathogens
human pathogens
plant mutants
none of these

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Industrially Useful Microbial Processes
Most productive species among the different vitamin B12 producing Pseudomonads is

P. aureofaciens
none of these
P. ovalis
P. denitrificans

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Industrially Useful Microbial Processes
During fermentation, pyruvic acid is converted into organic products such as

glucose and fructose
citric acid and isocitric acid
starch and cellulose
ethyl alcohol and lactic acid

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

Streptomyces erythreus
Streptomyces aureofaciens
Streptomyces venezuelae
Streptomyces rimosus

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

Streptomyces griseus
Streptomyces olivaceus
Bacillus megaterium
Streptomyces lactis

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