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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Alcohol production from starch and raw sugar utilizes selected strains of

Candida utilis
none of these
Saccharomyces cerevisiae
Candida pseudotropicalis

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Industrially Useful Microbial Processes
A major organism used in commercial bioleaching for copper recovery is

Pseudomonas aeruginosa
Thiobacillus ferrooxidans
Aspergillus niger
Desulfovibrio desulfuricans

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

acetone butanol
ethanol
citric acid
streptomycin

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Industrially Useful Microbial Processes
The organism which utilizes the pentose of sulphite waste liquor for lactic acid production is

Lactobacillus casei
Lactobacillus bulgaricus
Lactobacillus pentosus
Streptococcus lactis

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

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

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Industrially Useful Microbial Processes
Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B12 and can be used to counteract toxicity of iron in Candida species?

Zn
Ca
Ni
Co

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