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Ethanol Production

Ethanol Production
Ethanol is produced by

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

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

Impeller
Baffles
All of these
Sparger

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

hexoses only
pentoses only
both hexoses and pentoses
none of these

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Ethanol Production
What are different substrates used for ethanol production?

All of these
Waste product from wood or processed wood
Starch containing substrate
Juices from sugarcane or molasses or sugar beet

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

centrifugation
filtration
distillation
cell disintegration

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Ethanol Production
As the fermentation for the ethanol production is over, the cells are separated to get the biomass of yeast cells that is used

All of these
as manure
for next fermentation
as single cell protein for animal feed

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