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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?

Lysine
Galactosidase
Gluconic acid
Citric acid

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Industrially Useful Microbial Processes
β-carotene is also known as

provitamin A
vitamin A
vitamin C
vitamin D

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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
Which of the following organism is utilized for the production of D-L-alanine?

Brevibacterium flavum
Arthrobacter paraffineus
C. glutamicum
Microbacterium ammoniaphilum

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Industrially Useful Microbial Processes
The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

traces of nickel
traces of cobalt
traces of iron
none of these

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Industrially Useful Microbial Processes
The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of

Acetobacter
both (a) and (b)
Propionibacterium
Pseudomonas

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