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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B12 and can be used to counteract toxicity of iron in Candida species?

Ca
Zn
Co
Ni

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Industrially Useful Microbial Processes
A major organic acid produced by a microbial process used in foods is

sulfuric acid
uric acid
citric acid
oxalic acid

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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
Alcohol production from starch and raw sugar utilizes selected strains of

Candida pseudotropicalis
Saccharomyces cerevisiae
Candida utilis
none of these

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

Galactosidase
Gluconic acid
Lysine
Citric acid

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

autolysis
acidification
none of these
alcohol treatment

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