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Industrially Useful Microbial Processes

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

Acetobacter schuetzenbachii
Acetobacter xylinum
Accetobacter orleanense
Acetobacter curvum

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

Citric acid
Galactosidase
Lysine
Gluconic acid

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

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

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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

60%
70%
95%
99%

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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
The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of

Pseudomonas
Propionibacterium
both (a) and (b)
Acetobacter

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