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Industrially Useful Microbial Processes

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

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

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

Aspergillus niger
Desulfovibrio desulfuricans
Thiobacillus ferrooxidans
Pseudomonas aeruginosa

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Industrially Useful Microbial Processes
The 95% ethanol is equivalent to

170 proof
110 proof
190 proof
120 proof

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Industrially Useful Microbial Processes
Which of the following substance is employed to neutralize the lactic acid as it is produced (because lactic acid bacteria do not tolerate high concentrations of acid?

CaCO3
(NH4)2 HPO4
Na2SO4
MgSO4

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Industrially Useful Microbial Processes
Bacitracin, an antibiotic similar to penicillin, is produced by

Bacillus polymyxa
Aspergillus fumigatus
Bacillus licheniformis
Streptomyces erythreus

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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 cobalt
traces of nickel
none of these

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