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Ethanol Production

Ethanol Production
Ethanol is produced by

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

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

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

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

centrifugation
distillation
cell disintegration
filtration

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Ethanol Production
Which of the following organism is not used in any of the traditional industrial fermentation?

Bacillus
Pseudomonas
Yeast
E. coli

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

Saccharomyces uvarum
Saccharomyces cerevisiae
Zygomonas mobilis
All of these

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Ethanol Production
The fermentor can be sterilized by

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

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