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Ethanol Production

Ethanol Production
Ethanol is produced by

both (a) and (b)
continuous fermentation
batch fermentation
none of these

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Ethanol Production
Which of the following is used to check vortex and to improve aeration efficiency in a fermentor?

Impeller
All of these
Sparger
Baffles

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Ethanol Production
The Zygomonas has a merit over yeast because

All of these
it has more specific growth rate
it has high tolerance to ethanol
it has more osmotic tolerance to higher sugar concentration

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Ethanol Production
Candida utilis is used for the fermentation of waste sulphate liquor since it ferments

pentoses only
hexoses only
both hexoses and pentoses
none of these

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Ethanol Production
Which of the following is used for agitation in a fermentor?

Baffles
Impeller
Sparger
All of these

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

cell disintegration
filtration
centrifugation
distillation

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