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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
The commonly used media for submerged bacterial fermentation at commercial scale is

liver extract
germinated seed
beet molasses
none of these

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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
Which of the following microorganism produces only L(+) - lactic acid without further racemization ?

Lactobacillus bulgaricus
Lactobacillus delbrueckii
Rhizopus oryzae
Leuconostoc mesenteroides

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

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

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Industrially Useful Microbial Processes
The major organism used in the microbial production of citric acid is

Aspergillus niger
Penicillin notatum
Rhizopus nigrificins
Lactobacillis delbrueckii

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Industrially Useful Microbial Processes
Which species from the followings is resistant to methyl tryptophan?

Candida utilis
Hansenula anomala
E. coli
B. subtilis

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