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Ethanol Production

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

E. coli
Bacillus
Pseudomonas
Yeast

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Ethanol Production
As the fermentation for the ethanol production is over, the cells are separated to get the biomass of yeast cells that is used

as manure
as single cell protein for animal feed
for next fermentation
All of these

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Ethanol Production
The fermentor can be sterilized by

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

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

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

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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 35°C
pH 6; temperature 30°C

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

none of these
both hexoses and pentoses
hexoses only
pentoses only

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