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Ethanol Production

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

Baffles
Sparger
Impeller
All of these

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Ethanol Production
Yeast is used in the production of

curd
acetic acid
ethyl alcohol
cheese

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Ethanol Production
If starch containing substrates are used for ethanol production, yeast strain can't be used directly because

it is converted to pentose sugar
None of these
it doesn't contain amylases to hydrolyze starch
starch is not a suitable substrate for the production of ethanol

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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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Ethanol Production
The fermentor can be sterilized by

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

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

cell disintegration
centrifugation
filtration
distillation

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