A Best Way To Crack Gorenment Job Exams

Biotechnology Objective Questions { Ethanol Production }



15. How is air supply to the fermentor sterilized?
A. By heat filtration
B. Filtration through fibrous material
C. Filtration through granular material
D. All of the above
Discussion
16. What are the fermentation conditions for the ethanol production?
A. pH 6; temperature 35°C
B. pH 5; temperature 35°C
C. pH 6; temperature 30°C
D. pH 5; temperature 30°C
Discussion
17. Which of the following is used for agitation in a fermentor?
A. Impeller
B. Baffles
C. Sparger
D. All of these
Discussion
18. To maintain aseptic conditions during fermentation which of the following is needed?
A. Sterilization of fermentor
B. Sterilization of air supply
C. Aeration and agitation
D. All of these
Discussion
19. High ethanol concentration
A. promotes yeast growth
B. inhibits yeast growth
C. promotes bacterial growth
D. inhibits bacterial growth
Discussion

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