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Industrially Useful Microbial Processes

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

Citric acid
Gluconic acid
Lysine
Galactosidase

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

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

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Industrially Useful Microbial Processes
Most productive species among the different vitamin B12 producing Pseudomonads is

P. aureofaciens
P. ovalis
P. denitrificans
none of these

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Industrially Useful Microbial Processes
Naringinase, an enzyme commonly used for removal of bitter taste from citrus juice is obtained from

A. niger
S. cerevisiae
A.flavus
A. oryzae

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

beet molasses
none of these
germinated seed
liver extract

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Industrially Useful Microbial Processes
β-carotene is also known as

vitamin D
provitamin A
vitamin A
vitamin C

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