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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?

Co
Ni
Ca
Zn

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Industrially Useful Microbial Processes
Species of the genus Streptomyces are known for

the production of beer
the production of cheese
nitrification
the production of antibiotics

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

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

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Industrially Useful Microbial Processes
A major organism used in commercial bioleaching for copper recovery is

Desulfovibrio desulfuricans
Pseudomonas aeruginosa
Aspergillus niger
Thiobacillus ferrooxidans

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Industrially Useful Microbial Processes
Which of the following Ascomycetes are used for riboflavin production?

Both (a) and (b)
Candida guilliermondia
Eremnothecium ashbyii
Ashbya gossypii

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

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

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