Industrially Useful Microbial Processes – Section 2

46. The sulfite waste liquor fermentation employs the use of Candida utilis because of its ability to ferment

A. sucrose
B. pentose
C. glucose
D. maltose

Correct Answer: B. pentose

47. Which of the following organisms has shown the ability of phosphate solubilization in red wine?

A. S.cerevisiae
B. Gluconobacter oxydans
C. Bacillus subtilis
D. None of these

Correct Answer: B. Gluconobacter oxydans

48. The organism commonly used for the production of β carotene is/ are

A. Phycomyces blakesleeanus
B. Choanephora cucurbitarum
C. Blakeslea trispora
D. all of these

Correct Answer: D. all of these

49. The organism commercially used for fungal fermentation to obtain citric acid is

A. A. oryzae
B. A.flavus
C. A. niger
D. S. cerevisiae

Correct Answer: C. A. niger

50. Erythromycin a broad-spectrum antibiotic is obtained with the help of

A. Streptomyces rimosus
B. Streptomyces venezuelae
C. Streptomyces erythreus
D. Streptomyces halstedii

Correct Answer: C. Streptomyces erythreus

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