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Industrially Useful Microbial Processes

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

95%
99%
60%
70%

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Industrially Useful Microbial Processes
Which of the following was the first amino acid to be produced commercially?

L-glutamic acid
L-methionine
L-cystine
L-lysine

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Industrially Useful Microbial Processes
The recovery of vitamin from fermentation broth is carried out prior to

acidification
none of these
autolysis
alcohol treatment

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Industrially Useful Microbial Processes
Bacitracin, an antibiotic similar to penicillin, is produced by

Aspergillus fumigatus
Bacillus licheniformis
Streptomyces erythreus
Bacillus polymyxa

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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
none of these
plant mutants
plant pathogens

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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 xylinum
Accetobacter orleanense
Acetobacter curvum
Acetobacter schuetzenbachii

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