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Industrially Useful Microbial Processes

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

acidification
alcohol treatment
autolysis
none of these

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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
MgSO4
Na2SO4
(NH4)2 HPO4

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

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

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Industrially Useful Microbial Processes
B. flavum strain can be used for the production of

All of these
L-Proline
L-Isoleucine and L-Histidine
L-Threonine

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

Lactobacillus delbrueckii
Lactobacillus bulgaricus
Leuconostoc mesenteroides
Rhizopus oryzae

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Industrially Useful Microbial Processes
Which of the following Ascomycetes are used for riboflavin production?

Ashbya gossypii
Candida guilliermondia
Both (a) and (b)
Eremnothecium ashbyii

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