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Ethanol Production

Ethanol Production
The fermentor can be sterilized by

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

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

All of these
Sparger
Impeller
Baffles

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

Impeller
Sparger
Baffles
All of these

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Ethanol Production
What are the fermentation conditions for the ethanol production?

pH 5; temperature 30°C
pH 6; temperature 35°C
pH 6; temperature 30°C
pH 5; temperature 35°C

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Ethanol Production
Ethanol is produced by

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

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Ethanol Production
High ethanol concentration

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

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