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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

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

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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
Sparger
Impeller
Baffles

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Ethanol Production
What are different substrates used for ethanol production?

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

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

All of these
Baffles
Sparger
Impeller

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Ethanol Production
Ethanol is produced by

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

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