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Ethanol Production

Ethanol Production
Yeast is used in the production of

acetic acid
cheese
curd
ethyl alcohol

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Ethanol Production
High ethanol concentration

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

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Ethanol Production
Which of the following microorganisms help in the ethanol production?

Saccharomyces cerevisiae
Zygomonas mobilis
All of these
Saccharomyces uvarum

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

cell disintegration
distillation
centrifugation
filtration

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Ethanol Production
How is air supply to the fermentor sterilized?

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

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Ethanol Production
To maintain aseptic conditions during fermentation which of the following is needed?

Sterilization of air supply
All of these
Aeration and agitation
Sterilization of fermentor

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