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Ethanol Production

Ethanol Production
After the fermentation is over, ethanol is recovered by

centrifugation
distillation
filtration
cell disintegration

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Ethanol Production
Which of the following organism is not used in any of the traditional industrial fermentation?

Bacillus
Pseudomonas
Yeast
E. coli

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Ethanol Production
S cerevisiae start producing ethanol with in

12 h
10 h
15 h
24 h

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Ethanol Production
The fermentor can be sterilized by

steam under pressure
boiling
all of these
keeping it in the oven

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Ethanol Production
How is air supply to the fermentor sterilized?

All of these
Filtration through granular material
By heat filtration
Filtration through fibrous material

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Ethanol Production
High ethanol concentration

promotes bacterial growth
inhibits yeast growth
inhibits bacterial growth
promotes yeast growth

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