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Ethanol Production

Ethanol Production
The fermentor can be sterilized by

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

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Ethanol Production
How is air supply to the fermentor sterilized?

Filtration through fibrous material
All of these
By heat filtration
Filtration through granular material

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

both hexoses and pentoses
hexoses only
none of these
pentoses only

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

Impeller
All of these
Baffles
Sparger

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

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

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Ethanol Production
Ethanol is produced by

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

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