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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Pectinase, an enzyme used for increasing yield and for clarifying juice is obtained by

A. oryzae
all of these
A. niger
A.flavus

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Industrially Useful Microbial Processes
During fermentation, pyruvic acid is converted into organic products such as

citric acid and isocitric acid
ethyl alcohol and lactic acid
starch and cellulose
glucose and fructose

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

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

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

acidification
autolysis
alcohol treatment
none of these

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Industrially Useful Microbial Processes
The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is

isomerase
dehydrogenase
racemase
invertase

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

Lactobacillus pentose
Lactobacillus delbrueckii
Lactobacillus bulgaricus
Leuconostoc mesenteroides

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