INDUSTRIALLY USEFUL MICROBIAL PROCESSES QUIZ

Why high concentration of sugars are not employed in the fermentation medium?

High sugar concentration itself crystallizes

Calcium lactate crystallizes from the medium and slows down the process of fermentation

None of these

Calcium lactate is not produced

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The major organism used in the microbial production of citric acid is

Penicillin notatum

Rhizopus nigrificins

Lactobacillis delbrueckii

Aspergillus niger

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The strain C. glutamicum can be used for the production of

all of these

L-glutamine

L-ornithine

L-phenylalanine

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The organism which utilizes the pentose of sulphite waste liquor for lactic acid production is

Lactobacillus casei

Streptococcus lactis

Lactobacillus pentosus

Lactobacillus bulgaricus

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Which of the following organism is utilized for the production of D-L-alanine?

Microbacterium ammoniaphilum

Arthrobacter paraffineus

Brevibacterium flavum

C. glutamicum

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Bacitracin, an antibiotic similar to penicillin, is produced by

Aspergillus fumigatus

Bacillus licheniformis

Streptomyces erythreus

Bacillus polymyxa

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The species of Acetobacter which produces cellulosic strands to hold the cells in lime layer is

Acetobacter xylinum

Acetobacter curvum

Accetobacter orleanense

Acetobacter schuetzenbachii

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β-carotene is also known as

vitamin A

vitamin D

vitamin C

provitamin A

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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?

MgSO4

(NH4)2 HPO4

CaCO3

Na2SO4

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Species of the genus Streptomyces are known for

the production of beer

nitrification

the production of antibiotics

the production of cheese

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