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Industrially Useful Microbial Processes

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 organism used to produce L-glutamic acid is

Brevibacterium aminogenes
Arthrobacter globiformis
Micrococcus glutamicus
all of these

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

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

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

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

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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
Rhizopus oryzae
Leuconostoc mesenteroides

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

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

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