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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following is not an industrial product made by the fungus Aspergillus niger?

Gluconic acid
Citric acid
Lysine
Galactosidase

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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?

Ni
Zn
Ca
Co

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Industrially Useful Microbial Processes
Which of the following is a heterofermentative micro-organism?

Lactobacillus bulgaricus
Lactobacillus pentose
Leuconostoc mesenteroides
Lactobacillus delbrueckii

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Industrially Useful Microbial Processes
The species of Acetobacter which produces cellulosic strands to hold the cells in lime layer is

Acetobacter curvum
Acetobacter xylinum
Accetobacter orleanense
Acetobacter schuetzenbachii

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

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

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Industrially Useful Microbial Processes
The organism used to produce L-glutamic acid is

Brevibacterium aminogenes
all of these
Micrococcus glutamicus
Arthrobacter globiformis

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