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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

70%
99%
95%
60%

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Industrially Useful Microbial Processes
Alcohol production from starch and raw sugar utilizes selected strains of

Candida utilis
Saccharomyces cerevisiae
none of these
Candida pseudotropicalis

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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-lysine
L-cystine

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

Streptomyces lactis
Bacillus megaterium
Streptomyces griseus
Streptomyces olivaceus

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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 mutants
none of these
human pathogens
plant pathogens

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Industrially Useful Microbial Processes
Vinegar is a fermentation derived food product containing not less than

25% acetic acid
6% acetic acid
15% acetic acid
4% acetic acid

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