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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.

ethanol
citric acid
acetone butanol
streptomycin

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Industrially Useful Microbial Processes
Chlorotetracycline a broad spectrum antibiotic is produced by

Streptomyces aureofaciens
Streptomyces erythreus
Streptomyces rimosus
Streptomyces venezuelae

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Industrially Useful Microbial Processes
Which of the following was the first amino acid to be produced commercially?

L-lysine
L-glutamic acid
L-cystine
L-methionine

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Industrially Useful Microbial Processes
The maximum concentration of ethanol that is achieved by successive distillation of fermentation broth in continuous stills is

70%
99%
95%
60%

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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 nickel
traces of cobalt

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

Lactobacillus pentose
Leuconostoc mesenteroides
Lactobacillus delbrueckii
Lactobacillus bulgaricus

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