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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
The submerged fermentation of vinegar utilizes special fermentor designs known as

both (a) and (b)
cavitator
acetator
packed vinegar generator

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Industrially Useful Microbial Processes
β-carotene is also known as

vitamin C
provitamin A
vitamin A
vitamin D

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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?

(NH4)2 HPO4
MgSO4
Na2SO4
CaCO3

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

autolysis
alcohol treatment
none of these
acidification

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Industrially Useful Microbial Processes
Which of the following microorganism produces only L(+) - lactic acid without further racemization ?

Leuconostoc mesenteroides
Lactobacillus bulgaricus
Rhizopus oryzae
Lactobacillus delbrueckii

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

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

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