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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
β-carotene is also known as

provitamin A
vitamin C
vitamin A
vitamin D

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

Streptomyces griseus
Streptomyces olivaceus
Bacillus megaterium
Streptomyces lactis

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Industrially Useful Microbial Processes
The 95% ethanol is equivalent to

170 proof
110 proof
120 proof
190 proof

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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-cystine
L-lysine
L-methionine

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Industrially Useful Microbial Processes
Which of the following organism produces enzyme taka diastase?

B. subtilis
A. oryzae
A. niger
S. cerevisiae

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Industrially Useful Microbial Processes
The biotin level in obtaining L-gluatmic acid by fermentation using Micrococcus glutamicus is critical because

both (a) and (b)
too low level prevents growths, hence L-glutamic acid production
None of these
too high level prevents L-glutamic acid production

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