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Ethanol Production

Ethanol Production
The fermentor can be sterilized by

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

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Ethanol Production
The Zygomonas has a merit over yeast because

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

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

All of these
Baffles
Sparger
Impeller

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

filtration
centrifugation
distillation
cell disintegration

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Ethanol Production
To maintain aseptic conditions during fermentation which of the following is needed?

Sterilization of fermentor
Aeration and agitation
Sterilization of air supply
All of these

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

pentoses only
both hexoses and pentoses
none of these
hexoses only

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