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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?

Ni
Co
Zn
Ca

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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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Industrially Useful Microbial Processes
Which of the following organism produces enzyme taka diastase?

S. cerevisiae
A. oryzae
A. niger
B. subtilis

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Industrially Useful Microbial Processes
The organism B. brevis can be used commercially for the production of

tyrothricin(bacitracin tyrocidin complex)
All of these
tyrocidin
gramicidin A

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Industrially Useful Microbial Processes
Which of the following is a heterofermentative micro-organism?

Lactobacillus bulgaricus
Lactobacillus pentose
Leuconostoc mesenteroides
Lactobacillus delbrueckii

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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 iron
traces of nickel
traces of cobalt
none of these

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