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Industrially Useful Microbial Processes

Industrially Useful Microbial Processes
Which of the following is not an industrial product made by the fungus Aspergillus niger?

Lysine
Gluconic acid
Citric acid
Galactosidase

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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?

Ni
Ca
Co
Zn

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

Streptococcus lactis
Lactobacillus casei
Lactobacillus pentosus
Lactobacillus bulgaricus

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Industrially Useful Microbial Processes
Bacitracin, an antibiotic similar to penicillin, is produced by

Bacillus polymyxa
Aspergillus fumigatus
Streptomyces erythreus
Bacillus licheniformis

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

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

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Industrially Useful Microbial Processes
The sugar concentration of molasses used in fermentation should be

10-18%
20-30%
4-5%
30-38%

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