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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
β-carotene is also known as

vitamin C
provitamin A
vitamin D
vitamin A

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

alcohol treatment
none of these
acidification
autolysis

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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?

Zn
Ni
Ca
Co

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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 sugar concentration of molasses used in fermentation should be

30-38%
4-5%
20-30%
10-18%

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Industrially Useful Microbial Processes
The species of Acetobacter which produces cellulosic strands to hold the cells in lime layer is

Acetobacter curvum
Acetobacter schuetzenbachii
Accetobacter orleanense
Acetobacter xylinum

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