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Ethanol Production

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

Impeller
Sparger
All of these
Baffles

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Ethanol Production
S cerevisiae start producing ethanol with in

15 h
10 h
12 h
24 h

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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
for next fermentation
as manure
as single cell protein for animal feed

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Ethanol Production
Ethanol is produced by

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

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Ethanol Production
High ethanol concentration

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

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Ethanol Production
The Zygomonas has a merit over yeast because

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

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