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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

traces of iron
traces of nickel
none of these
traces of cobalt

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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

human pathogens
plant mutants
none of these
plant pathogens

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

Propionibacterium
Acetobacter
Pseudomonas
both (a) and (b)

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

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

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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
A major organism used in commercial bioleaching for copper recovery is

Aspergillus niger
Pseudomonas aeruginosa
Thiobacillus ferrooxidans
Desulfovibrio desulfuricans

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