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ETHANOL PRODUCTION

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

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

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

All of these
Impeller
Baffles
Sparger

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Ethanol Production
What are different substrates used for ethanol production?

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

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

All of these
Baffles
Impeller
Sparger

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Ethanol Production
Ethanol is produced by

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

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